17.12

venv/bin/activate

@@ -0,0 +1,76 @@
+# This file must be used with "source bin/activate" *from bash*
+# you cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+        hash -r
+    fi
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    if [ ! "$1" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+VIRTUAL_ENV="/Users/gillmannma68984/PycharmProjects/git/demoweb/venv"
+export VIRTUAL_ENV
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/bin:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    if [ "x(venv) " != x ] ; then
+	PS1="(venv) ${PS1:-}"
+    else
+    if [ "`basename \"$VIRTUAL_ENV\"`" = "__" ] ; then
+        # special case for Aspen magic directories
+        # see http://www.zetadev.com/software/aspen/
+        PS1="[`basename \`dirname \"$VIRTUAL_ENV\"\``] $PS1"
+    else
+        PS1="(`basename \"$VIRTUAL_ENV\"`)$PS1"
+    fi
+    fi
+    export PS1
+fi
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+    hash -r
+fi

venv/bin/activate.csh

@@ -0,0 +1,37 @@
+# This file must be used with "source bin/activate.csh" *from csh*.
+# You cannot run it directly.
+# Created by Davide Di Blasi <davidedb@gmail.com>.
+# Ported to Python 3.3 venv by Andrew Svetlov <andrew.svetlov@gmail.com>
+
+alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate'
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+setenv VIRTUAL_ENV "/Users/gillmannma68984/PycharmProjects/git/demoweb/venv"
+
+set _OLD_VIRTUAL_PATH="$PATH"
+setenv PATH "$VIRTUAL_ENV/bin:$PATH"
+
+
+set _OLD_VIRTUAL_PROMPT="$prompt"
+
+if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
+    if ("venv" != "") then
+        set env_name = "venv"
+    else
+        if (`basename "VIRTUAL_ENV"` == "__") then
+            # special case for Aspen magic directories
+            # see http://www.zetadev.com/software/aspen/
+            set env_name = `basename \`dirname "$VIRTUAL_ENV"\``
+        else
+            set env_name = `basename "$VIRTUAL_ENV"`
+        endif
+    endif
+    set prompt = "[$env_name] $prompt"
+    unset env_name
+endif
+
+alias pydoc python -m pydoc
+
+rehash

venv/bin/automat-visualize

@@ -0,0 +1,11 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from automat._visualize import tool
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(tool())

venv/bin/django-admin

@@ -0,0 +1,11 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from django.core.management import execute_from_command_line
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(execute_from_command_line())

venv/bin/mailmail

@@ -0,0 +1,12 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'Twisted==19.10.0','console_scripts','mailmail'
+__requires__ = 'Twisted==19.10.0'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('Twisted==19.10.0', 'console_scripts', 'mailmail')()
+    )

venv/bin/pip

@@ -0,0 +1,12 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'pip==10.0.1','console_scripts','pip'
+__requires__ = 'pip==10.0.1'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('pip==10.0.1', 'console_scripts', 'pip')()
+    )

venv/bin/pip3.7

@@ -0,0 +1,12 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'pip==10.0.1','console_scripts','pip3.7'
+__requires__ = 'pip==10.0.1'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('pip==10.0.1', 'console_scripts', 'pip3.7')()
+    )

venv/bin/trial

@@ -0,0 +1,12 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'Twisted==19.10.0','console_scripts','trial'
+__requires__ = 'Twisted==19.10.0'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('Twisted==19.10.0', 'console_scripts', 'trial')()
+    )

venv/bin/twist

@@ -0,0 +1,12 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'Twisted==19.10.0','console_scripts','twist'
+__requires__ = 'Twisted==19.10.0'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('Twisted==19.10.0', 'console_scripts', 'twist')()
+    )

venv/bin/wamp

@@ -0,0 +1,11 @@
+#!/Users/gillmannma68984/PycharmProjects/git/demoweb/venv/bin/python
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from autobahn.__main__ import _main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(_main())

venv/lib/python3.7/site-packages/Automat-0.8.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

venv/lib/python3.7/site-packages/Automat-0.8.0.dist-info/LICENSE

@@ -0,0 +1,21 @@
+Copyright (c) 2014
+Rackspace
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

venv/lib/python3.7/site-packages/Automat-0.8.0.dist-info/METADATA

@@ -0,0 +1,486 @@
+Metadata-Version: 2.1
+Name: Automat
+Version: 0.8.0
+Summary: Self-service finite-state machines for the programmer on the go.
+Home-page: https://github.com/glyph/Automat
+Author: Glyph
+Author-email: glyph@twistedmatrix.com
+License: MIT
+Keywords: fsm finite state machine automata
+Platform: UNKNOWN
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Requires-Dist: attrs (>=16.1.0)
+Requires-Dist: six
+Provides-Extra: visualize
+Requires-Dist: graphviz (>0.5.1) ; extra == 'visualize'
+Requires-Dist: Twisted (>=16.1.1) ; extra == 'visualize'
+
+Automat
+=======
+
+
+.. image:: https://readthedocs.org/projects/automat/badge/?version=latest
+   :target: http://automat.readthedocs.io/en/latest/
+   :alt: Documentation Status
+
+
+.. image:: https://travis-ci.org/glyph/automat.svg?branch=master
+   :target: https://travis-ci.org/glyph/automat
+   :alt: Build Status
+
+
+.. image:: https://coveralls.io/repos/glyph/automat/badge.png
+   :target: https://coveralls.io/r/glyph/automat
+   :alt: Coverage Status
+
+
+Self-service finite-state machines for the programmer on the go.
+----------------------------------------------------------------
+
+Automat is a library for concise, idiomatic Python expression of finite-state
+automata (particularly deterministic finite-state transducers).
+
+Read more here, or on `Read the Docs <https://automat.readthedocs.io/>`_\ , or watch the following videos for an overview and presentation
+
+Overview and presentation by **Glyph Lefkowitz** at the first talk of the first Pyninsula meetup, on February 21st, 2017:
+
+.. image:: https://img.youtube.com/vi/0wOZBpD1VVk/0.jpg
+   :target: https://www.youtube.com/watch?v=0wOZBpD1VVk
+   :alt: Glyph Lefkowitz - Automat - Pyninsula #0
+
+
+Presentation by **Clinton Roy** at PyCon Australia, on August 6th 2017:
+
+.. image:: https://img.youtube.com/vi/TedUKXhu9kE/0.jpg
+   :target: https://www.youtube.com/watch?v=TedUKXhu9kE
+   :alt: Clinton Roy - State Machines - Pycon Australia 2017
+
+
+Why use state machines?
+^^^^^^^^^^^^^^^^^^^^^^^
+
+Sometimes you have to create an object whose behavior varies with its state,
+but still wishes to present a consistent interface to its callers.
+
+For example, let's say you're writing the software for a coffee machine.  It
+has a lid that can be opened or closed, a chamber for water, a chamber for
+coffee beans, and a button for "brew".
+
+There are a number of possible states for the coffee machine.  It might or
+might not have water.  It might or might not have beans.  The lid might be open
+or closed.  The "brew" button should only actually attempt to brew coffee in
+one of these configurations, and the "open lid" button should only work if the
+coffee is not, in fact, brewing.
+
+With diligence and attention to detail, you can implement this correctly using
+a collection of attributes on an object; ``has_water``\ , ``has_beans``\ ,
+``is_lid_open`` and so on.  However, you have to keep all these attributes
+consistent.  As the coffee maker becomes more complex - perhaps you add an
+additional chamber for flavorings so you can make hazelnut coffee, for
+example - you have to keep adding more and more checks and more and more
+reasoning about which combinations of states are allowed.
+
+Rather than adding tedious 'if' checks to every single method to make sure that
+each of these flags are exactly what you expect, you can use a state machine to
+ensure that if your code runs at all, it will be run with all the required
+values initialized, because they have to be called in the order you declare
+them.
+
+You can read about state machines and their advantages for Python programmers
+in considerably more detail
+`in this excellent series of articles from ClusterHQ <https://clusterhq.com/blog/what-is-a-state-machine/>`_.
+
+What makes Automat different?
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+There are
+`dozens of libraries on PyPI implementing state machines <https://pypi.org/search/?q=finite+state+machine>`_.
+So it behooves me to say why yet another one would be a good idea.
+
+Automat is designed around this principle: while organizing your code around
+state machines is a good idea, your callers don't, and shouldn't have to, care
+that you've done so.  In Python, the "input" to a stateful system is a method
+call; the "output" may be a method call, if you need to invoke a side effect,
+or a return value, if you are just performing a computation in memory.  Most
+other state-machine libraries require you to explicitly create an input object,
+provide that object to a generic "input" method, and then receive results,
+sometimes in terms of that library's interfaces and sometimes in terms of
+classes you define yourself.
+
+For example, a snippet of the coffee-machine example above might be implemented
+as follows in naive Python:
+
+.. code-block:: python
+
+   class CoffeeMachine(object):
+       def brew_button(self):
+           if self.has_water and self.has_beans and not self.is_lid_open:
+               self.heat_the_heating_element()
+               # ...
+
+With Automat, you'd create a class with a ``MethodicalMachine`` attribute:
+
+.. code-block:: python
+
+   from automat import MethodicalMachine
+
+   class CoffeeBrewer(object):
+       _machine = MethodicalMachine()
+
+and then you would break the above logic into two pieces - the ``brew_button``
+*input*\ , declared like so:
+
+.. code-block:: python
+
+       @_machine.input()
+       def brew_button(self):
+           "The user pressed the 'brew' button."
+
+It wouldn't do any good to declare a method *body* on this, however, because
+input methods don't actually execute their bodies when called; doing actual
+work is the *output*\ 's job:
+
+.. code-block:: python
+
+       @_machine.output()
+       def _heat_the_heating_element(self):
+           "Heat up the heating element, which should cause coffee to happen."
+           self._heating_element.turn_on()
+
+As well as a couple of *states* - and for simplicity's sake let's say that the
+only two states are ``have_beans`` and ``dont_have_beans``\ :
+
+.. code-block:: python
+
+       @_machine.state()
+       def have_beans(self):
+           "In this state, you have some beans."
+       @_machine.state(initial=True)
+       def dont_have_beans(self):
+           "In this state, you don't have any beans."
+
+``dont_have_beans`` is the ``initial`` state because ``CoffeeBrewer`` starts without beans
+in it.
+
+(And another input to put some beans in:)
+
+.. code-block:: python
+
+       @_machine.input()
+       def put_in_beans(self):
+           "The user put in some beans."
+
+Finally, you hook everything together with the ``upon`` method of the functions
+decorated with ``_machine.state``\ :
+
+.. code-block:: python
+
+
+       # When we don't have beans, upon putting in beans, we will then have beans
+       # (and produce no output)
+       dont_have_beans.upon(put_in_beans, enter=have_beans, outputs=[])
+
+       # When we have beans, upon pressing the brew button, we will then not have
+       # beans any more (as they have been entered into the brewing chamber) and
+       # our output will be heating the heating element.
+       have_beans.upon(brew_button, enter=dont_have_beans,
+                       outputs=[_heat_the_heating_element])
+
+To *users* of this coffee machine class though, it still looks like a POPO
+(Plain Old Python Object):
+
+.. code-block:: python
+
+   >>> coffee_machine = CoffeeMachine()
+   >>> coffee_machine.put_in_beans()
+   >>> coffee_machine.brew_button()
+
+All of the *inputs* are provided by calling them like methods, all of the
+*outputs* are automatically invoked when they are produced according to the
+outputs specified to ``upon`` and all of the states are simply opaque tokens -
+although the fact that they're defined as methods like inputs and outputs
+allows you to put docstrings on them easily to document them.
+
+How do I get the current state of a state machine?
+--------------------------------------------------
+
+Don't do that.
+
+One major reason for having a state machine is that you want the callers of the
+state machine to just provide the appropriate input to the machine at the
+appropriate time, and *not have to check themselves* what state the machine is
+in.  So if you are tempted to write some code like this:
+
+.. code-block:: python
+
+   if connection_state_machine.state == "CONNECTED":
+       connection_state_machine.send_message()
+   else:
+       print("not connected")
+
+Instead, just make your calling code do this:
+
+.. code-block:: python
+
+   connection_state_machine.send_message()
+
+and then change your state machine to look like this:
+
+.. code-block:: python
+
+       @_machine.state()
+       def connected(self):
+           "connected"
+       @_machine.state()
+       def not_connected(self):
+           "not connected"
+       @_machine.input()
+       def send_message(self):
+           "send a message"
+       @_machine.output()
+       def _actually_send_message(self):
+           self._transport.send(b"message")
+       @_machine.output()
+       def _report_sending_failure(self):
+           print("not connected")
+       connected.upon(send_message, enter=connected, [_actually_send_message])
+       not_connected.upon(send_message, enter=not_connected, [_report_sending_failure])
+
+so that the responsibility for knowing which state the state machine is in
+remains within the state machine itself.
+
+Input for Inputs and Output for Outputs
+---------------------------------------
+
+Quite often you want to be able to pass parameters to your methods, as well as
+inspecting their results.  For example, when you brew the coffee, you might
+expect a cup of coffee to result, and you would like to see what kind of coffee
+it is.  And if you were to put delicious hand-roasted small-batch artisanal
+beans into the machine, you would expect a *better* cup of coffee than if you
+were to use mass-produced beans.  You would do this in plain old Python by
+adding a parameter, so that's how you do it in Automat as well.
+
+.. code-block:: python
+
+       @_machine.input()
+       def put_in_beans(self, beans):
+           "The user put in some beans."
+
+However, one important difference here is that *we can't add any
+implementation code to the input method*.  Inputs are purely a declaration of
+the interface; the behavior must all come from outputs.  Therefore, the change
+in the state of the coffee machine must be represented as an output.  We can
+add an output method like this:
+
+.. code-block:: python
+
+       @_machine.output()
+       def _save_beans(self, beans):
+           "The beans are now in the machine; save them."
+           self._beans = beans
+
+and then connect it to the ``put_in_beans`` by changing the transition from
+``dont_have_beans`` to ``have_beans`` like so:
+
+.. code-block:: python
+
+       dont_have_beans.upon(put_in_beans, enter=have_beans,
+                            outputs=[_save_beans])
+
+Now, when you call:
+
+.. code-block:: python
+
+   coffee_machine.put_in_beans("real good beans")
+
+the machine will remember the beans for later.
+
+So how do we get the beans back out again?  One of our outputs needs to have a
+return value.  It would make sense if our ``brew_button`` method returned the cup
+of coffee that it made, so we should add an output.  So, in addition to heating
+the heating element, let's add a return value that describes the coffee.  First
+a new output:
+
+.. code-block:: python
+
+       @_machine.output()
+       def _describe_coffee(self):
+           return "A cup of coffee made with {}.".format(self._beans)
+
+Note that we don't need to check first whether ``self._beans`` exists or not,
+because we can only reach this output method if the state machine says we've
+gone through a set of states that sets this attribute.
+
+Now, we need to hook up ``_describe_coffee`` to the process of brewing, so change
+the brewing transition to:
+
+.. code-block:: python
+
+       have_beans.upon(brew_button, enter=dont_have_beans,
+                       outputs=[_heat_the_heating_element,
+                                _describe_coffee])
+
+Now, we can call it:
+
+.. code-block:: python
+
+   >>> coffee_machine.brew_button()
+   [None, 'A cup of coffee made with real good beans.']
+
+Except... wait a second, what's that ``None`` doing there?
+
+Since every input can produce multiple outputs, in automat, the default return
+value from every input invocation is a ``list``.  In this case, we have both
+``_heat_the_heating_element`` and ``_describe_coffee`` outputs, so we're seeing
+both of their return values.  However, this can be customized, with the
+``collector`` argument to ``upon``\ ; the ``collector`` is a callable which takes an
+iterable of all the outputs' return values and "collects" a single return value
+to return to the caller of the state machine.
+
+In this case, we only care about the last output, so we can adjust the call to
+``upon`` like this:
+
+.. code-block:: python
+
+       have_beans.upon(brew_button, enter=dont_have_beans,
+                       outputs=[_heat_the_heating_element,
+                                _describe_coffee],
+                       collector=lambda iterable: list(iterable)[-1]
+       )
+
+And now, we'll get just the return value we want:
+
+.. code-block:: python
+
+   >>> coffee_machine.brew_button()
+   'A cup of coffee made with real good beans.'
+
+If I can't get the state of the state machine, how can I save it to (a database, an API response, a file on disk...)
+--------------------------------------------------------------------------------------------------------------------
+
+There are APIs for serializing the state machine.
+
+First, you have to decide on a persistent representation of each state, via the
+``serialized=`` argument to the ``MethodicalMachine.state()`` decorator.
+
+Let's take this very simple "light switch" state machine, which can be on or
+off, and flipped to reverse its state:
+
+.. code-block:: python
+
+   class LightSwitch(object):
+       _machine = MethodicalMachine()
+       @_machine.state(serialized="on")
+       def on_state(self):
+           "the switch is on"
+       @_machine.state(serialized="off", initial=True)
+       def off_state(self):
+           "the switch is off"
+       @_machine.input()
+       def flip(self):
+           "flip the switch"
+       on_state.upon(flip, enter=off_state, outputs=[])
+       off_state.upon(flip, enter=on_state, outputs=[])
+
+In this case, we've chosen a serialized representation for each state via the
+``serialized`` argument.  The on state is represented by the string ``"on"``\ , and
+the off state is represented by the string ``"off"``.
+
+Now, let's just add an input that lets us tell if the switch is on or not.
+
+.. code-block:: python
+
+       @_machine.input()
+       def query_power(self):
+           "return True if powered, False otherwise"
+       @_machine.output()
+       def _is_powered(self):
+           return True
+       @_machine.output()
+       def _not_powered(self):
+           return False
+       on_state.upon(query_power, enter=on_state, outputs=[_is_powered],
+                     collector=next)
+       off_state.upon(query_power, enter=off_state, outputs=[_not_powered],
+                      collector=next)
+
+To save the state, we have the ``MethodicalMachine.serializer()`` method.  A
+method decorated with ``@serializer()`` gets an extra argument injected at the
+beginning of its argument list: the serialized identifier for the state.  In
+this case, either ``"on"`` or ``"off"``.  Since state machine output methods can
+also affect other state on the object, a serializer method is expected to
+return *all* relevant state for serialization.
+
+For our simple light switch, such a method might look like this:
+
+.. code-block:: python
+
+       @_machine.serializer()
+       def save(self, state):
+           return {"is-it-on": state}
+
+Serializers can be public methods, and they can return whatever you like.  If
+necessary, you can have different serializers - just multiple methods decorated
+with ``@_machine.serializer()`` - for different formats; return one data-structure
+for JSON, one for XML, one for a database row, and so on.
+
+When it comes time to unserialize, though, you generally want a private method,
+because an unserializer has to take a not-fully-initialized instance and
+populate it with state.  It is expected to *return* the serialized machine
+state token that was passed to the serializer, but it can take whatever
+arguments you like.  Of course, in order to return that, it probably has to
+take it somewhere in its arguments, so it will generally take whatever a paired
+serializer has returned as an argument.
+
+So our unserializer would look like this:
+
+.. code-block:: python
+
+       @_machine.unserializer()
+       def _restore(self, blob):
+           return blob["is-it-on"]
+
+Generally you will want a classmethod deserialization constructor which you
+write yourself to call this, so that you know how to create an instance of your
+own object, like so:
+
+.. code-block:: python
+
+       @classmethod
+       def from_blob(cls, blob):
+           self = cls()
+           self._restore(blob)
+           return self
+
+Saving and loading our ``LightSwitch`` along with its state-machine state can now
+be accomplished as follows:
+
+.. code-block:: python
+
+   >>> switch1 = LightSwitch()
+   >>> switch1.query_power()
+   False
+   >>> switch1.flip()
+   []
+   >>> switch1.query_power()
+   True
+   >>> blob = switch1.save()
+   >>> switch2 = LightSwitch.from_blob(blob)
+   >>> switch2.query_power()
+   True
+
+More comprehensive (tested, working) examples are present in ``docs/examples``.
+
+Go forth and machine all the state!
+
+

venv/lib/python3.7/site-packages/Automat-0.8.0.dist-info/entry_points.txt

@@ -0,0 +1,3 @@
+[console_scripts]
+automat-visualize = automat._visualize:tool
+

venv/lib/python3.7/site-packages/Automat-0.8.0.dist-info/top_level.txt

@@ -0,0 +1 @@
+automat

venv/lib/python3.7/site-packages/Django-2.2.6.dist-info/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) Django Software Foundation and individual contributors.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    3. Neither the name of Django nor the names of its contributors may be used
+       to endorse or promote products derived from this software without
+       specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

venv/lib/python3.7/site-packages/Django-2.2.6.dist-info/entry_points.txt

@@ -0,0 +1,3 @@
+[console_scripts]
+django-admin = django.core.management:execute_from_command_line
+

venv/lib/python3.7/site-packages/OpenSSL/__init__.py

@@ -0,0 +1,20 @@
+# Copyright (C) AB Strakt
+# See LICENSE for details.
+
+"""
+pyOpenSSL - A simple wrapper around the OpenSSL library
+"""
+
+from OpenSSL import crypto, SSL
+from OpenSSL.version import (
+    __author__, __copyright__, __email__, __license__, __summary__, __title__,
+    __uri__, __version__,
+)
+
+
+__all__ = [
+    "SSL", "crypto",
+
+    "__author__", "__copyright__", "__email__", "__license__", "__summary__",
+    "__title__", "__uri__", "__version__",
+]

venv/lib/python3.7/site-packages/OpenSSL/debug.py

@@ -0,0 +1,42 @@
+from __future__ import print_function
+
+import ssl
+import sys
+
+import OpenSSL.SSL
+import cffi
+import cryptography
+
+from . import version
+
+
+_env_info = u"""\
+pyOpenSSL: {pyopenssl}
+cryptography: {cryptography}
+cffi: {cffi}
+cryptography's compiled against OpenSSL: {crypto_openssl_compile}
+cryptography's linked OpenSSL: {crypto_openssl_link}
+Pythons's OpenSSL: {python_openssl}
+Python executable: {python}
+Python version: {python_version}
+Platform: {platform}
+sys.path: {sys_path}""".format(
+    pyopenssl=version.__version__,
+    crypto_openssl_compile=OpenSSL._util.ffi.string(
+        OpenSSL._util.lib.OPENSSL_VERSION_TEXT,
+    ).decode("ascii"),
+    crypto_openssl_link=OpenSSL.SSL.SSLeay_version(
+        OpenSSL.SSL.SSLEAY_VERSION
+    ).decode("ascii"),
+    python_openssl=getattr(ssl, "OPENSSL_VERSION", "n/a"),
+    cryptography=cryptography.__version__,
+    cffi=cffi.__version__,
+    python=sys.executable,
+    python_version=sys.version,
+    platform=sys.platform,
+    sys_path=sys.path,
+)
+
+
+if __name__ == "__main__":
+    print(_env_info)

venv/lib/python3.7/site-packages/OpenSSL/version.py

@@ -0,0 +1,22 @@
+# Copyright (C) AB Strakt
+# Copyright (C) Jean-Paul Calderone
+# See LICENSE for details.
+
+"""
+pyOpenSSL - A simple wrapper around the OpenSSL library
+"""
+
+__all__ = [
+    "__author__", "__copyright__", "__email__", "__license__", "__summary__",
+    "__title__", "__uri__", "__version__",
+]
+
+__version__ = "19.1.0"
+
+__title__ = "pyOpenSSL"
+__uri__ = "https://pyopenssl.org/"
+__summary__ = "Python wrapper module around the OpenSSL library"
+__author__ = "The pyOpenSSL developers"
+__email__ = "cryptography-dev@python.org"
+__license__ = "Apache License, Version 2.0"
+__copyright__ = "Copyright 2001-2017 {0}".format(__author__)

venv/lib/python3.7/site-packages/PyHamcrest-1.9.0.dist-info/DESCRIPTION.rst

@@ -0,0 +1,322 @@
+PyHamcrest
+==========
+
+| |docs| |travis| |coveralls| |landscape| |scrutinizer| |codeclimate|
+| |version| |downloads| |wheel| |supported-versions| |supported-implementations|
+
+.. |docs| image:: https://readthedocs.org/projects/pyhamcrest/badge/?style=flat
+    :target: https://pyhamcrest.readthedocs.org/
+    :alt: Documentation Status
+
+.. |travis| image:: http://img.shields.io/travis/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Travis-CI Build Status
+    :target: https://travis-ci.org/hamcrest/PyHamcrest
+
+.. |appveyor| image:: https://ci.appveyor.com/api/projects/status/github/hamcrest/PyHamcrest?branch=master
+    :alt: AppVeyor Build Status
+    :target: https://ci.appveyor.com/project/hamcrest/PyHamcrest
+
+.. |coveralls| image:: http://img.shields.io/coveralls/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Coverage Status
+    :target: https://coveralls.io/r/hamcrest/PyHamcrest
+
+.. |landscape| image:: https://landscape.io/github/hamcrest/PyHamcrest/master/landscape.svg?style=flat
+    :target: https://landscape.io/github/hamcrest/PyHamcrest/master
+    :alt: Code Quality Status
+
+.. |codeclimate| image:: https://codeclimate.com/github/hamcrest/PyHamcrest/badges/gpa.svg
+   :target: https://codeclimate.com/github/hamcrest/PyHamcrest
+   :alt: Code Climate
+
+.. |version| image:: http://img.shields.io/pypi/v/PyHamcrest.png?style=flat
+    :alt: PyPI Package latest release
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |downloads| image:: http://img.shields.io/pypi/dm/PyHamcrest.png?style=flat
+    :alt: PyPI Package monthly downloads
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |wheel| image:: https://pypip.in/wheel/PyHamcrest/badge.png?style=flat
+    :alt: PyPI Wheel
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |supported-versions| image:: https://pypip.in/py_versions/PyHamcrest/badge.png?style=flat
+    :alt: Supported versions
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |supported-implementations| image:: https://pypip.in/implementation/PyHamcrest/badge.png?style=flat
+    :alt: Supported imlementations
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |scrutinizer| image:: https://img.shields.io/scrutinizer/g/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Scrtinizer Status
+    :target: https://scrutinizer-ci.com/g/hamcrest/PyHamcrest/
+
+
+Introduction
+============
+
+PyHamcrest is a framework for writing matcher objects, allowing you to
+declaratively define "match" rules. There are a number of situations where
+matchers are invaluable, such as UI validation, or data filtering, but it is in
+the area of writing flexible tests that matchers are most commonly used. This
+tutorial shows you how to use PyHamcrest for unit testing.
+
+When writing tests it is sometimes difficult to get the balance right between
+overspecifying the test (and making it brittle to changes), and not specifying
+enough (making the test less valuable since it continues to pass even when the
+thing being tested is broken). Having a tool that allows you to pick out
+precisely the aspect under test and describe the values it should have, to a
+controlled level of precision, helps greatly in writing tests that are "just
+right." Such tests fail when the behavior of the aspect under test deviates
+from the expected behavior, yet continue to pass when minor, unrelated changes
+to the behaviour are made.
+
+Installation
+============
+
+Hamcrest can be installed using the usual Python packaging tools. It depends on
+distribute, but as long as you have a network connection when you install, the
+installation process will take care of that for you.
+
+My first PyHamcrest test
+========================
+
+We'll start by writing a very simple PyUnit test, but instead of using PyUnit's
+``assertEqual`` method, we'll use PyHamcrest's ``assert_that`` construct and
+the standard set of matchers:
+
+.. code:: python
+
+ from hamcrest import *
+ import unittest
+
+ class BiscuitTest(unittest.TestCase):
+     def testEquals(self):
+         theBiscuit = Biscuit('Ginger')
+         myBiscuit = Biscuit('Ginger')
+         assert_that(theBiscuit, equal_to(myBiscuit))
+
+ if __name__ == '__main__':
+     unittest.main()
+
+The ``assert_that`` function is a stylized sentence for making a test
+assertion. In this example, the subject of the assertion is the object
+``theBiscuit``, which is the first method parameter. The second method
+parameter is a matcher for ``Biscuit`` objects, here a matcher that checks one
+object is equal to another using the Python ``==`` operator. The test passes
+since the ``Biscuit`` class defines an ``__eq__`` method.
+
+If you have more than one assertion in your test you can include an identifier
+for the tested value in the assertion:
+
+.. code:: python
+
+ assert_that(theBiscuit.getChocolateChipCount(), equal_to(10), 'chocolate chips')
+ assert_that(theBiscuit.getHazelnutCount(), equal_to(3), 'hazelnuts')
+
+As a convenience, assert_that can also be used to verify a boolean condition:
+
+.. code:: python
+
+ assert_that(theBiscuit.isCooked(), 'cooked')
+
+This is equivalent to the ``assert_`` method of unittest.TestCase, but because
+it's a standalone function, it offers greater flexibility in test writing.
+
+
+Predefined matchers
+===================
+
+PyHamcrest comes with a library of useful matchers:
+
+* Object
+
+  * ``equal_to`` - match equal object
+  * ``has_length`` - match ``len()``
+  * ``has_property`` - match value of property with given name
+  * ``has_properties`` - match an object that has all of the given properties.
+  * ``has_string`` - match ``str()``
+  * ``instance_of`` - match object type
+  * ``none``, ``not_none`` - match ``None``, or not ``None``
+  * ``same_instance`` - match same object
+  * ``calling, raises`` - wrap a method call and assert that it raises an exception
+
+* Number
+
+  * ``close_to`` - match number close to a given value
+  * ``greater_than``, ``greater_than_or_equal_to``, ``less_than``,
+    ``less_than_or_equal_to`` - match numeric ordering
+
+* Text
+
+  * ``contains_string`` - match part of a string
+  * ``ends_with`` - match the end of a string
+  * ``equal_to_ignoring_case`` - match the complete string but ignore case
+  * ``equal_to_ignoring_whitespace`` - match the complete string but ignore extra whitespace
+  * ``matches_regexp`` - match a regular expression in a string
+  * ``starts_with`` - match the beginning of a string
+  * ``string_contains_in_order`` - match parts of a string, in relative order
+
+* Logical
+
+  * ``all_of`` - ``and`` together all matchers
+  * ``any_of`` - ``or`` together all matchers
+  * ``anything`` - match anything, useful in composite matchers when you don't care about a particular value
+  * ``is_not`` - negate the matcher
+
+* Sequence
+
+  * ``contains`` - exactly match the entire sequence
+  * ``contains_inanyorder`` - match the entire sequence, but in any order
+  * ``has_item`` - match if given item appears in the sequence
+  * ``has_items`` - match if all given items appear in the sequence, in any order
+  * ``is_in`` - match if item appears in the given sequence
+  * ``only_contains`` - match if sequence's items appear in given list
+  * ``empty`` - match if the sequence is empty
+
+* Dictionary
+
+  * ``has_entries`` - match dictionary with list of key-value pairs
+  * ``has_entry`` - match dictionary containing a key-value pair
+  * ``has_key`` - match dictionary with a key
+  * ``has_value`` - match dictionary with a value
+
+* Decorator
+
+  * ``calling`` - wrap a callable in a deffered object, for subsequent matching on calling behaviour
+  * ``raises`` - Ensure that a deferred callable raises as expected
+  * ``described_as`` - give the matcher a custom failure description
+  * ``is_`` - decorator to improve readability - see `Syntactic sugar` below
+
+The arguments for many of these matchers accept not just a matching value, but
+another matcher, so matchers can be composed for greater flexibility. For
+example, ``only_contains(less_than(5))`` will match any sequence where every
+item is less than 5.
+
+
+Syntactic sugar
+===============
+
+PyHamcrest strives to make your tests as readable as possible. For example, the
+``is_`` matcher is a wrapper that doesn't add any extra behavior to the
+underlying matcher. The following assertions are all equivalent:
+
+.. code:: python
+
+ assert_that(theBiscuit, equal_to(myBiscuit))
+ assert_that(theBiscuit, is_(equal_to(myBiscuit)))
+ assert_that(theBiscuit, is_(myBiscuit))
+
+The last form is allowed since ``is_(value)`` wraps most non-matcher arguments
+with ``equal_to``. But if the argument is a type, it is wrapped with
+``instance_of``, so the following are also equivalent:
+
+.. code:: python
+
+ assert_that(theBiscuit, instance_of(Biscuit))
+ assert_that(theBiscuit, is_(instance_of(Biscuit)))
+ assert_that(theBiscuit, is_(Biscuit))
+
+*Note that PyHamcrest's ``is_`` matcher is unrelated to Python's ``is``
+operator. The matcher for object identity is ``same_instance``.*
+
+
+Writing custom matchers
+=======================
+
+PyHamcrest comes bundled with lots of useful matchers, but you'll probably find
+that you need to create your own from time to time to fit your testing needs.
+This commonly occurs when you find a fragment of code that tests the same set
+of properties over and over again (and in different tests), and you want to
+bundle the fragment into a single assertion. By writing your own matcher you'll
+eliminate code duplication and make your tests more readable!
+
+Let's write our own matcher for testing if a calendar date falls on a Saturday.
+This is the test we want to write:
+
+.. code:: python
+
+ def testDateIsOnASaturday(self):
+     d = datetime.date(2008, 04, 26)
+     assert_that(d, is_(on_a_saturday()))
+
+And here's the implementation:
+
+.. code:: python
+
+ from hamcrest.core.base_matcher import BaseMatcher
+ from hamcrest.core.helpers.hasmethod import hasmethod
+
+ class IsGivenDayOfWeek(BaseMatcher):
+
+     def __init__(self, day):
+         self.day = day  # Monday is 0, Sunday is 6
+
+     def _matches(self, item):
+         if not hasmethod(item, 'weekday'):
+             return False
+         return item.weekday() == self.day
+
+     def describe_to(self, description):
+         day_as_string = ['Monday', 'Tuesday', 'Wednesday', 'Thursday',
+                          'Friday', 'Saturday', 'Sunday']
+         description.append_text('calendar date falling on ')    \
+                    .append_text(day_as_string[self.day])
+
+ def on_a_saturday():
+     return IsGivenDayOfWeek(5)
+
+For our Matcher implementation we implement the ``_matches`` method - which
+calls the ``weekday`` method after confirming that the argument (which may not
+be a date) has such a method - and the ``describe_to`` method - which is used
+to produce a failure message when a test fails. Here's an example of how the
+failure message looks:
+
+.. code:: python
+
+ assert_that(datetime.date(2008, 04, 06), is_(on_a_saturday()))
+
+fails with the message::
+
+    AssertionError:
+    Expected: is calendar date falling on Saturday
+         got: <2008-04-06>
+
+Let's say this matcher is saved in a module named ``isgivendayofweek``. We
+could use it in our test by importing the factory function ``on_a_saturday``:
+
+.. code:: python
+
+ from hamcrest import *
+ import unittest
+ from isgivendayofweek import on_a_saturday
+
+ class DateTest(unittest.TestCase):
+     def testDateIsOnASaturday(self):
+         d = datetime.date(2008, 04, 26)
+         assert_that(d, is_(on_a_saturday()))
+
+ if __name__ == '__main__':
+     unittest.main()
+
+Even though the ``on_a_saturday`` function creates a new matcher each time it
+is called, you should not assume this is the only usage pattern for your
+matcher. Therefore you should make sure your matcher is stateless, so a single
+instance can be reused between matches.
+
+
+More resources
+==============
+
+* Documentation_
+* Package_
+* Sources_
+* Hamcrest_
+
+.. _Documentation: http://readthedocs.org/docs/pyhamcrest/en/V1.8.2/
+.. _Package: http://pypi.python.org/pypi/PyHamcrest
+.. _Sources: https://github.com/hamcrest/PyHamcrest
+.. _Hamcrest: http://hamcrest.org
+
+

venv/lib/python3.7/site-packages/PyHamcrest-1.9.0.dist-info/METADATA

@@ -0,0 +1,353 @@
+Metadata-Version: 2.0
+Name: PyHamcrest
+Version: 1.9.0
+Summary: Hamcrest framework for matcher objects
+Home-page: https://github.com/hamcrest/PyHamcrest
+Author: Chris Rose
+Author-email: offline@offby1.net
+License: New BSD
+Download-URL: http://pypi.python.org/packages/source/P/PyHamcrest/PyHamcrest-1.9.0.tar.gz
+Keywords: hamcrest matchers pyunit unit test testing unittest unittesting
+Platform: All
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Environment :: Console
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Natural Language :: English
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: Jython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Topic :: Software Development
+Classifier: Topic :: Software Development :: Quality Assurance
+Classifier: Topic :: Software Development :: Testing
+Provides: hamcrest
+Requires-Dist: setuptools
+Requires-Dist: six
+
+PyHamcrest
+==========
+
+| |docs| |travis| |coveralls| |landscape| |scrutinizer| |codeclimate|
+| |version| |downloads| |wheel| |supported-versions| |supported-implementations|
+
+.. |docs| image:: https://readthedocs.org/projects/pyhamcrest/badge/?style=flat
+    :target: https://pyhamcrest.readthedocs.org/
+    :alt: Documentation Status
+
+.. |travis| image:: http://img.shields.io/travis/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Travis-CI Build Status
+    :target: https://travis-ci.org/hamcrest/PyHamcrest
+
+.. |appveyor| image:: https://ci.appveyor.com/api/projects/status/github/hamcrest/PyHamcrest?branch=master
+    :alt: AppVeyor Build Status
+    :target: https://ci.appveyor.com/project/hamcrest/PyHamcrest
+
+.. |coveralls| image:: http://img.shields.io/coveralls/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Coverage Status
+    :target: https://coveralls.io/r/hamcrest/PyHamcrest
+
+.. |landscape| image:: https://landscape.io/github/hamcrest/PyHamcrest/master/landscape.svg?style=flat
+    :target: https://landscape.io/github/hamcrest/PyHamcrest/master
+    :alt: Code Quality Status
+
+.. |codeclimate| image:: https://codeclimate.com/github/hamcrest/PyHamcrest/badges/gpa.svg
+   :target: https://codeclimate.com/github/hamcrest/PyHamcrest
+   :alt: Code Climate
+
+.. |version| image:: http://img.shields.io/pypi/v/PyHamcrest.png?style=flat
+    :alt: PyPI Package latest release
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |downloads| image:: http://img.shields.io/pypi/dm/PyHamcrest.png?style=flat
+    :alt: PyPI Package monthly downloads
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |wheel| image:: https://pypip.in/wheel/PyHamcrest/badge.png?style=flat
+    :alt: PyPI Wheel
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |supported-versions| image:: https://pypip.in/py_versions/PyHamcrest/badge.png?style=flat
+    :alt: Supported versions
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |supported-implementations| image:: https://pypip.in/implementation/PyHamcrest/badge.png?style=flat
+    :alt: Supported imlementations
+    :target: https://pypi.python.org/pypi/PyHamcrest
+
+.. |scrutinizer| image:: https://img.shields.io/scrutinizer/g/hamcrest/PyHamcrest/master.png?style=flat
+    :alt: Scrtinizer Status
+    :target: https://scrutinizer-ci.com/g/hamcrest/PyHamcrest/
+
+
+Introduction
+============
+
+PyHamcrest is a framework for writing matcher objects, allowing you to
+declaratively define "match" rules. There are a number of situations where
+matchers are invaluable, such as UI validation, or data filtering, but it is in
+the area of writing flexible tests that matchers are most commonly used. This
+tutorial shows you how to use PyHamcrest for unit testing.
+
+When writing tests it is sometimes difficult to get the balance right between
+overspecifying the test (and making it brittle to changes), and not specifying
+enough (making the test less valuable since it continues to pass even when the
+thing being tested is broken). Having a tool that allows you to pick out
+precisely the aspect under test and describe the values it should have, to a
+controlled level of precision, helps greatly in writing tests that are "just
+right." Such tests fail when the behavior of the aspect under test deviates
+from the expected behavior, yet continue to pass when minor, unrelated changes
+to the behaviour are made.
+
+Installation
+============
+
+Hamcrest can be installed using the usual Python packaging tools. It depends on
+distribute, but as long as you have a network connection when you install, the
+installation process will take care of that for you.
+
+My first PyHamcrest test
+========================
+
+We'll start by writing a very simple PyUnit test, but instead of using PyUnit's
+``assertEqual`` method, we'll use PyHamcrest's ``assert_that`` construct and
+the standard set of matchers:
+
+.. code:: python
+
+ from hamcrest import *
+ import unittest
+
+ class BiscuitTest(unittest.TestCase):
+     def testEquals(self):
+         theBiscuit = Biscuit('Ginger')
+         myBiscuit = Biscuit('Ginger')
+         assert_that(theBiscuit, equal_to(myBiscuit))
+
+ if __name__ == '__main__':
+     unittest.main()
+
+The ``assert_that`` function is a stylized sentence for making a test
+assertion. In this example, the subject of the assertion is the object
+``theBiscuit``, which is the first method parameter. The second method
+parameter is a matcher for ``Biscuit`` objects, here a matcher that checks one
+object is equal to another using the Python ``==`` operator. The test passes
+since the ``Biscuit`` class defines an ``__eq__`` method.
+
+If you have more than one assertion in your test you can include an identifier
+for the tested value in the assertion:
+
+.. code:: python
+
+ assert_that(theBiscuit.getChocolateChipCount(), equal_to(10), 'chocolate chips')
+ assert_that(theBiscuit.getHazelnutCount(), equal_to(3), 'hazelnuts')
+
+As a convenience, assert_that can also be used to verify a boolean condition:
+
+.. code:: python
+
+ assert_that(theBiscuit.isCooked(), 'cooked')
+
+This is equivalent to the ``assert_`` method of unittest.TestCase, but because
+it's a standalone function, it offers greater flexibility in test writing.
+
+
+Predefined matchers
+===================
+
+PyHamcrest comes with a library of useful matchers:
+
+* Object
+
+  * ``equal_to`` - match equal object
+  * ``has_length`` - match ``len()``
+  * ``has_property`` - match value of property with given name
+  * ``has_properties`` - match an object that has all of the given properties.
+  * ``has_string`` - match ``str()``
+  * ``instance_of`` - match object type
+  * ``none``, ``not_none`` - match ``None``, or not ``None``
+  * ``same_instance`` - match same object
+  * ``calling, raises`` - wrap a method call and assert that it raises an exception
+
+* Number
+
+  * ``close_to`` - match number close to a given value
+  * ``greater_than``, ``greater_than_or_equal_to``, ``less_than``,
+    ``less_than_or_equal_to`` - match numeric ordering
+
+* Text
+
+  * ``contains_string`` - match part of a string
+  * ``ends_with`` - match the end of a string
+  * ``equal_to_ignoring_case`` - match the complete string but ignore case
+  * ``equal_to_ignoring_whitespace`` - match the complete string but ignore extra whitespace
+  * ``matches_regexp`` - match a regular expression in a string
+  * ``starts_with`` - match the beginning of a string
+  * ``string_contains_in_order`` - match parts of a string, in relative order
+
+* Logical
+
+  * ``all_of`` - ``and`` together all matchers
+  * ``any_of`` - ``or`` together all matchers
+  * ``anything`` - match anything, useful in composite matchers when you don't care about a particular value
+  * ``is_not`` - negate the matcher
+
+* Sequence
+
+  * ``contains`` - exactly match the entire sequence
+  * ``contains_inanyorder`` - match the entire sequence, but in any order
+  * ``has_item`` - match if given item appears in the sequence
+  * ``has_items`` - match if all given items appear in the sequence, in any order
+  * ``is_in`` - match if item appears in the given sequence
+  * ``only_contains`` - match if sequence's items appear in given list
+  * ``empty`` - match if the sequence is empty
+
+* Dictionary
+
+  * ``has_entries`` - match dictionary with list of key-value pairs
+  * ``has_entry`` - match dictionary containing a key-value pair
+  * ``has_key`` - match dictionary with a key
+  * ``has_value`` - match dictionary with a value
+
+* Decorator
+
+  * ``calling`` - wrap a callable in a deffered object, for subsequent matching on calling behaviour
+  * ``raises`` - Ensure that a deferred callable raises as expected
+  * ``described_as`` - give the matcher a custom failure description
+  * ``is_`` - decorator to improve readability - see `Syntactic sugar` below
+
+The arguments for many of these matchers accept not just a matching value, but
+another matcher, so matchers can be composed for greater flexibility. For
+example, ``only_contains(less_than(5))`` will match any sequence where every
+item is less than 5.
+
+
+Syntactic sugar
+===============
+
+PyHamcrest strives to make your tests as readable as possible. For example, the
+``is_`` matcher is a wrapper that doesn't add any extra behavior to the
+underlying matcher. The following assertions are all equivalent:
+
+.. code:: python
+
+ assert_that(theBiscuit, equal_to(myBiscuit))
+ assert_that(theBiscuit, is_(equal_to(myBiscuit)))
+ assert_that(theBiscuit, is_(myBiscuit))
+
+The last form is allowed since ``is_(value)`` wraps most non-matcher arguments
+with ``equal_to``. But if the argument is a type, it is wrapped with
+``instance_of``, so the following are also equivalent:
+
+.. code:: python
+
+ assert_that(theBiscuit, instance_of(Biscuit))
+ assert_that(theBiscuit, is_(instance_of(Biscuit)))
+ assert_that(theBiscuit, is_(Biscuit))
+
+*Note that PyHamcrest's ``is_`` matcher is unrelated to Python's ``is``
+operator. The matcher for object identity is ``same_instance``.*
+
+
+Writing custom matchers
+=======================
+
+PyHamcrest comes bundled with lots of useful matchers, but you'll probably find
+that you need to create your own from time to time to fit your testing needs.
+This commonly occurs when you find a fragment of code that tests the same set
+of properties over and over again (and in different tests), and you want to
+bundle the fragment into a single assertion. By writing your own matcher you'll
+eliminate code duplication and make your tests more readable!
+
+Let's write our own matcher for testing if a calendar date falls on a Saturday.
+This is the test we want to write:
+
+.. code:: python
+
+ def testDateIsOnASaturday(self):
+     d = datetime.date(2008, 04, 26)
+     assert_that(d, is_(on_a_saturday()))
+
+And here's the implementation:
+
+.. code:: python
+
+ from hamcrest.core.base_matcher import BaseMatcher
+ from hamcrest.core.helpers.hasmethod import hasmethod
+
+ class IsGivenDayOfWeek(BaseMatcher):
+
+     def __init__(self, day):
+         self.day = day  # Monday is 0, Sunday is 6
+
+     def _matches(self, item):
+         if not hasmethod(item, 'weekday'):
+             return False
+         return item.weekday() == self.day
+
+     def describe_to(self, description):
+         day_as_string = ['Monday', 'Tuesday', 'Wednesday', 'Thursday',
+                          'Friday', 'Saturday', 'Sunday']
+         description.append_text('calendar date falling on ')    \
+                    .append_text(day_as_string[self.day])
+
+ def on_a_saturday():
+     return IsGivenDayOfWeek(5)
+
+For our Matcher implementation we implement the ``_matches`` method - which
+calls the ``weekday`` method after confirming that the argument (which may not
+be a date) has such a method - and the ``describe_to`` method - which is used
+to produce a failure message when a test fails. Here's an example of how the
+failure message looks:
+
+.. code:: python
+
+ assert_that(datetime.date(2008, 04, 06), is_(on_a_saturday()))
+
+fails with the message::
+
+    AssertionError:
+    Expected: is calendar date falling on Saturday
+         got: <2008-04-06>
+
+Let's say this matcher is saved in a module named ``isgivendayofweek``. We
+could use it in our test by importing the factory function ``on_a_saturday``:
+
+.. code:: python
+
+ from hamcrest import *
+ import unittest
+ from isgivendayofweek import on_a_saturday
+
+ class DateTest(unittest.TestCase):
+     def testDateIsOnASaturday(self):
+         d = datetime.date(2008, 04, 26)
+         assert_that(d, is_(on_a_saturday()))
+
+ if __name__ == '__main__':
+     unittest.main()
+
+Even though the ``on_a_saturday`` function creates a new matcher each time it
+is called, you should not assume this is the only usage pattern for your
+matcher. Therefore you should make sure your matcher is stateless, so a single
+instance can be reused between matches.
+
+
+More resources
+==============
+
+* Documentation_
+* Package_
+* Sources_
+* Hamcrest_
+
+.. _Documentation: http://readthedocs.org/docs/pyhamcrest/en/V1.8.2/
+.. _Package: http://pypi.python.org/pypi/PyHamcrest
+.. _Sources: https://github.com/hamcrest/PyHamcrest
+.. _Hamcrest: http://hamcrest.org
+
+

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venv/lib/python3.7/site-packages/Twisted-19.10.0-py3.7.egg-info/PKG-INFO

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+Metadata-Version: 2.1
+Name: Twisted
+Version: 19.10.0
+Summary: An asynchronous networking framework written in Python
+Home-page: https://twistedmatrix.com/
+Author: Twisted Matrix Laboratories
+Author-email: twisted-python@twistedmatrix.com
+Maintainer: Glyph Lefkowitz
+Maintainer-email: glyph@twistedmatrix.com
+License: MIT
+Project-URL: Documentation, https://twistedmatrix.com/documents/current/
+Project-URL: Source, https://github.com/twisted/twisted
+Project-URL: Issues, https://twistedmatrix.com/trac/report
+Description: Twisted
+        =======
+        
+        |pypi|_
+        |travis|_
+        |circleci|_
+        
+        For information on changes in this release, see the `NEWS <https://github.com/twisted/twisted/blob/trunk/NEWS.rst>`_ file.
+        
+        
+        What is this?
+        -------------
+        
+        Twisted is an event-based framework for internet applications, supporting Python 2.7 and Python 3.5+.
+        It includes modules for many different purposes, including the following:
+        
+        - ``twisted.web``: HTTP clients and servers, HTML templating, and a WSGI server
+        - ``twisted.conch``: SSHv2 and Telnet clients and servers and terminal emulators
+        - ``twisted.words``: Clients and servers for IRC, XMPP, and other IM protocols
+        - ``twisted.mail``: IMAPv4, POP3, SMTP clients and servers
+        - ``twisted.positioning``: Tools for communicating with NMEA-compatible GPS receivers
+        - ``twisted.names``: DNS client and tools for making your own DNS servers
+        - ``twisted.trial``: A unit testing framework that integrates well with Twisted-based code.
+        
+        Twisted supports all major system event loops -- ``select`` (all platforms), ``poll`` (most POSIX platforms), ``epoll`` (Linux), ``kqueue`` (FreeBSD, macOS), IOCP (Windows), and various GUI event loops (GTK+2/3, Qt, wxWidgets).
+        Third-party reactors can plug into Twisted, and provide support for additional event loops.
+        
+        
+        Installing
+        ----------
+        
+        To install the latest version of Twisted using pip::
+        
+          $ pip install twisted
+        
+        Additional instructions for installing this software are in `the installation instructions <https://github.com/twisted/twisted/blob/trunk/INSTALL.rst>`_.
+        
+        
+        Documentation and Support
+        -------------------------
+        
+        Twisted's documentation is available from the `Twisted Matrix website <https://twistedmatrix.com/documents/current/>`_.
+        This documentation contains how-tos, code examples, and an API reference.
+        
+        Help is also available on the `Twisted mailing list <https://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python>`_.
+        
+        There is also a pair of very lively IRC channels, ``#twisted`` (for general Twisted questions) and ``#twisted.web`` (for Twisted Web), on ``chat.freenode.net``.
+        
+        
+        Unit Tests
+        ----------
+        
+        Twisted has a comprehensive test suite, which can be run by ``tox``::
+        
+          $ tox -l            # to view all test environments
+          $ tox -e py27-tests # to run the tests for Python 2.7
+          $ tox -e py35-tests # to run the tests for Python 3.5
+        
+        
+        You can test running the test suite under the different reactors with the ``TWISTED_REACTOR`` environment variable::
+        
+          $ env TWISTED_REACTOR=epoll tox -e py27-tests
+        
+        
+        Some of these tests may fail if you:
+        
+        * don't have the dependencies required for a particular subsystem installed,
+        * have a firewall blocking some ports (or things like Multicast, which Linux NAT has shown itself to do), or
+        * run them as root.
+        
+        
+        Copyright
+        ---------
+        
+        All of the code in this distribution is Copyright (c) 2001-2019 Twisted Matrix Laboratories.
+        
+        Twisted is made available under the MIT license.
+        The included `LICENSE <https://github.com/twisted/twisted/blob/trunk/LICENSE>`_ file describes this in detail.
+        
+        
+        Warranty
+        --------
+        
+          THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
+          EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+          OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+          TO THE USE OF THIS SOFTWARE IS WITH YOU.
+        
+          IN NO EVENT WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+          AND/OR REDISTRIBUTE THE LIBRARY, BE LIABLE TO YOU FOR ANY DAMAGES, EVEN IF
+          SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+          DAMAGES.
+        
+        Again, see the included `LICENSE <https://github.com/twisted/twisted/blob/trunk/LICENSE>`_ file for specific legal details.
+        
+        
+        .. |pypi| image:: http://img.shields.io/pypi/v/twisted.svg
+        .. _pypi: https://pypi.python.org/pypi/twisted
+        
+        .. |travis| image:: https://travis-ci.org/twisted/twisted.svg?branch=trunk
+        .. _travis: https://travis-ci.org/twisted/twisted
+        
+        .. |circleci| image:: https://circleci.com/gh/twisted/twisted.svg?style=svg
+        .. _circleci: https://circleci.com/gh/twisted/twisted
+        
+Platform: UNKNOWN
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Description-Content-Type: text/x-rst
+Provides-Extra: soap
+Provides-Extra: conch
+Provides-Extra: windows_platform
+Provides-Extra: tls
+Provides-Extra: dev
+Provides-Extra: all_non_platform
+Provides-Extra: macos_platform
+Provides-Extra: serial
+Provides-Extra: osx_platform
+Provides-Extra: http2

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venv/lib/python3.7/site-packages/Werkzeug-0.16.0.dist-info/WHEEL

@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.33.6)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+

venv/lib/python3.7/site-packages/asgiref-3.2.3.dist-info/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) Django Software Foundation and individual contributors.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    3. Neither the name of Django nor the names of its contributors may be used
+       to endorse or promote products derived from this software without
+       specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

venv/lib/python3.7/site-packages/asgiref-3.2.3.dist-info/METADATA

@@ -0,0 +1,225 @@
+Metadata-Version: 2.1
+Name: asgiref
+Version: 3.2.3
+Summary: ASGI specs, helper code, and adapters
+Home-page: http://github.com/django/asgiref/
+Author: Django Software Foundation
+Author-email: foundation@djangoproject.com
+License: BSD
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Environment :: Web Environment
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Topic :: Internet :: WWW/HTTP
+Description-Content-Type: text/x-rst
+Provides-Extra: tests
+Requires-Dist: pytest (~=4.3.0) ; extra == 'tests'
+Requires-Dist: pytest-asyncio (~=0.10.0) ; extra == 'tests'
+
+asgiref
+=======
+
+.. image:: https://api.travis-ci.org/django/asgiref.svg
+    :target: https://travis-ci.org/django/asgiref
+
+.. image:: https://img.shields.io/pypi/v/asgiref.svg
+    :target: https://pypi.python.org/pypi/asgiref
+
+ASGI is a standard for Python asynchronous web apps and servers to communicate
+with each other, and positioned as an asynchronous successor to WSGI. You can
+read more at https://asgi.readthedocs.io/en/latest/
+
+This package includes ASGI base libraries, such as:
+
+* Sync-to-async and async-to-sync function wrappers, ``asgiref.sync``
+* Server base classes, ``asgiref.server``
+* A WSGI-to-ASGI adapter, in ``asgiref.wsgi``
+
+
+Function wrappers
+-----------------
+
+These allow you to wrap or decorate async or sync functions to call them from
+the other style (so you can call async functions from a synchronous thread,
+or vice-versa).
+
+In particular:
+
+* AsyncToSync lets a synchronous subthread stop and wait while the async
+  function is called on the main thread's event loop, and then control is
+  returned to the thread when the async function is finished.
+
+* SyncToAsync lets async code call a synchronous function, which is run in
+  a threadpool and control returned to the async coroutine when the synchronous
+  function completes.
+
+The idea is to make it easier to call synchronous APIs from async code and
+asynchronous APIs from synchronous code so it's easier to transition code from
+one style to the other. In the case of Channels, we wrap the (synchronous)
+Django view system with SyncToAsync to allow it to run inside the (asynchronous)
+ASGI server.
+
+Note that exactly what threads things run in is very specific, and aimed to
+keep maximum compatibility with old synchronous code. See
+"Synchronous code & Threads" below for a full explanation.
+
+
+Threadlocal replacement
+-----------------------
+
+This is a drop-in replacement for ``threading.local`` that works with both
+threads and asyncio Tasks. Even better, it will proxy values through from a
+task-local context to a thread-local context when you use ``sync_to_async``
+to run things in a threadpool, and vice-versa for ``async_to_sync``.
+
+If you instead want true thread- and task-safety, you can set
+``thread_critical`` on the Local object to ensure this instead.
+
+
+Server base classes
+-------------------
+
+Includes a ``StatelessServer`` class which provides all the hard work of
+writing a stateless server (as in, does not handle direct incoming sockets
+but instead consumes external streams or sockets to work out what is happening).
+
+An example of such a server would be a chatbot server that connects out to
+a central chat server and provides a "connection scope" per user chatting to
+it. There's only one actual connection, but the server has to separate things
+into several scopes for easier writing of the code.
+
+You can see an example of this being used in `frequensgi <https://github.com/andrewgodwin/frequensgi>`_.
+
+
+WSGI-to-ASGI adapter
+--------------------
+
+Allows you to wrap a WSGI application so it appears as a valid ASGI application.
+
+Simply wrap it around your WSGI application like so::
+
+    asgi_application = WsgiToAsgi(wsgi_application)
+
+The WSGI application will be run in a synchronous threadpool, and the wrapped
+ASGI application will be one that accepts ``http`` class messages.
+
+Please note that not all extended features of WSGI may be supported (such as
+file handles for incoming POST bodies).
+
+
+Dependencies
+------------
+
+``asgiref`` requires Python 3.5 or higher.
+
+
+Contributing
+------------
+
+Please refer to the
+`main Channels contributing docs <https://github.com/django/channels/blob/master/CONTRIBUTING.rst>`_.
+
+
+Testing
+'''''''
+
+To run tests, make sure you have installed the ``tests`` extra with the package::
+
+    cd asgiref/
+    pip install -e .[tests]
+    pytest
+
+
+Building the documentation
+''''''''''''''''''''''''''
+
+The documentation uses `Sphinx <http://www.sphinx-doc.org>`_::
+
+    cd asgiref/docs/
+    pip install sphinx
+
+To build the docs, you can use the default tools::
+
+    sphinx-build -b html . _build/html  # or `make html`, if you've got make set up
+    cd _build/html
+    python -m http.server
+
+...or you can use ``sphinx-autobuild`` to run a server and rebuild/reload
+your documentation changes automatically::
+
+    pip install sphinx-autobuild
+    sphinx-autobuild . _build/html
+
+
+Implementation Details
+----------------------
+
+Synchronous code & threads
+''''''''''''''''''''''''''
+
+The ``asgiref.sync`` module provides two wrappers that let you go between
+asynchronous and synchronous code at will, while taking care of the rough edges
+for you.
+
+Unfortunately, the rough edges are numerous, and the code has to work especially
+hard to keep things in the same thread as much as possible. Notably, the
+restrictions we are working with are:
+
+* All synchronous code called through ``SyncToAsync`` and marked with
+  ``thread_sensitive`` should run in the same thread as each other (and if the
+  outer layer of the program is synchronous, the main thread)
+
+* If a thread already has a running async loop, ``AsyncToSync`` can't run things
+  on that loop if it's blocked on synchronous code that is above you in the
+  call stack.
+
+The first compromise you get to might be that ``thread_sensitive`` code should
+just run in the same thread and not spawn in a sub-thread, fulfilling the first
+restriction, but that immediately runs you into the second restriction.
+
+The only real solution is to essentially have a variant of ThreadPoolExecutor
+that executes any ``thread_sensitive`` code on the outermost synchronous
+thread - either the main thread, or a single spawned subthread.
+
+This means you now have two basic states:
+
+* If the outermost layer of your program is synchronous, then all async code
+  run through ``AsyncToSync`` will run in a per-call event loop in arbitary
+  sub-threads, while all ``thread_sensitive`` code will run in the main thread.
+
+* If the outermost layer of your program is asynchronous, then all async code
+  runs on the main thread's event loop, and all ``thread_sensitive`` synchronous
+  code will run in a single shared sub-thread.
+
+Cruicially, this means that in both cases there is a thread which is a shared
+resource that all ``thread_sensitive`` code must run on, and there is a chance
+that this thread is currently blocked on its own ``AsyncToSync`` call. Thus,
+``AsyncToSync`` needs to act as an executor for thread code while it's blocking.
+
+The ``CurrentThreadExecutor`` class provides this functionality; rather than
+simply waiting on a Future, you can call its ``run_until_future`` method and
+it will run submitted code until that Future is done. This means that code
+inside the call can then run code on your thread.
+
+
+Maintenance and Security
+------------------------
+
+To report security issues, please contact security@djangoproject.com. For GPG
+signatures and more security process information, see
+https://docs.djangoproject.com/en/dev/internals/security/.
+
+To report bugs or request new features, please open a new GitHub issue.
+
+This repository is part of the Channels project. For the shepherd and maintenance team, please see the
+`main Channels readme <https://github.com/django/channels/blob/master/README.rst>`_.
+
+

venv/lib/python3.7/site-packages/asgiref/current_thread_executor.py

@@ -0,0 +1,86 @@
+import queue
+import threading
+import time
+from concurrent.futures import Executor, Future
+
+
+class _WorkItem(object):
+    """
+    Represents an item needing to be run in the executor.
+    Copied from ThreadPoolExecutor (but it's private, so we're not going to rely on importing it)
+    """
+
+    def __init__(self, future, fn, args, kwargs):
+        self.future = future
+        self.fn = fn
+        self.args = args
+        self.kwargs = kwargs
+
+    def run(self):
+        if not self.future.set_running_or_notify_cancel():
+            return
+        try:
+            result = self.fn(*self.args, **self.kwargs)
+        except BaseException as exc:
+            self.future.set_exception(exc)
+            # Break a reference cycle with the exception 'exc'
+            self = None
+        else:
+            self.future.set_result(result)
+
+
+class CurrentThreadExecutor(Executor):
+    """
+    An Executor that actually runs code in the thread it is instantiated in.
+    Passed to other threads running async code, so they can run sync code in
+    the thread they came from.
+    """
+
+    def __init__(self):
+        self._work_thread = threading.current_thread()
+        self._work_queue = queue.Queue()
+        self._broken = False
+
+    def run_until_future(self, future):
+        """
+        Runs the code in the work queue until a result is available from the future.
+        Should be run from the thread the executor is initialised in.
+        """
+        # Check we're in the right thread
+        if threading.current_thread() != self._work_thread:
+            raise RuntimeError(
+                "You cannot run CurrentThreadExecutor from a different thread"
+            )
+        # Keep getting work items and checking the future
+        try:
+            while True:
+                # Get a work item and run it
+                try:
+                    work_item = self._work_queue.get(block=False)
+                except queue.Empty:
+                    # See if the future is done (we only exit if the work queue is empty)
+                    if future.done():
+                        return
+                    # Prevent hot-looping on nothing
+                    time.sleep(0.001)
+                else:
+                    work_item.run()
+                    del work_item
+        finally:
+            self._broken = True
+
+    def submit(self, fn, *args, **kwargs):
+        # Check they're not submitting from the same thread
+        if threading.current_thread() == self._work_thread:
+            raise RuntimeError(
+                "You cannot submit onto CurrentThreadExecutor from its own thread"
+            )
+        # Check they're not too late or the executor errored
+        if self._broken:
+            raise RuntimeError("CurrentThreadExecutor already quit or is broken")
+        # Add to work queue
+        f = Future()
+        work_item = _WorkItem(f, fn, args, kwargs)
+        self._work_queue.put(work_item)
+        # Return the future
+        return f

venv/lib/python3.7/site-packages/asgiref/server.py

@@ -0,0 +1,154 @@
+import asyncio
+import logging
+import time
+import traceback
+
+logger = logging.getLogger(__name__)
+
+
+class StatelessServer:
+    """
+    Base server class that handles basic concepts like application instance
+    creation/pooling, exception handling, and similar, for stateless protocols
+    (i.e. ones without actual incoming connections to the process)
+
+    Your code should override the handle() method, doing whatever it needs to,
+    and calling get_or_create_application_instance with a unique `scope_id`
+    and `scope` for the scope it wants to get.
+
+    If an application instance is found with the same `scope_id`, you are
+    given its input queue, otherwise one is made for you with the scope provided
+    and you are given that fresh new input queue. Either way, you should do
+    something like:
+
+    input_queue = self.get_or_create_application_instance(
+        "user-123456",
+        {"type": "testprotocol", "user_id": "123456", "username": "andrew"},
+    )
+    input_queue.put_nowait(message)
+
+    If you try and create an application instance and there are already
+    `max_application` instances, the oldest/least recently used one will be
+    reclaimed and shut down to make space.
+
+    Application coroutines that error will be found periodically (every 100ms
+    by default) and have their exceptions printed to the console. Override
+    application_exception() if you want to do more when this happens.
+
+    If you override run(), make sure you handle things like launching the
+    application checker.
+    """
+
+    application_checker_interval = 0.1
+
+    def __init__(self, application, max_applications=1000):
+        # Parameters
+        self.application = application
+        self.max_applications = max_applications
+        # Initialisation
+        self.application_instances = {}
+
+    ### Mainloop and handling
+
+    def run(self):
+        """
+        Runs the asyncio event loop with our handler loop.
+        """
+        event_loop = asyncio.get_event_loop()
+        asyncio.ensure_future(self.application_checker())
+        try:
+            event_loop.run_until_complete(self.handle())
+        except KeyboardInterrupt:
+            logger.info("Exiting due to Ctrl-C/interrupt")
+
+    async def handle(self):
+        raise NotImplementedError("You must implement handle()")
+
+    async def application_send(self, scope, message):
+        """
+        Receives outbound sends from applications and handles them.
+        """
+        raise NotImplementedError("You must implement application_send()")
+
+    ### Application instance management
+
+    def get_or_create_application_instance(self, scope_id, scope):
+        """
+        Creates an application instance and returns its queue.
+        """
+        if scope_id in self.application_instances:
+            self.application_instances[scope_id]["last_used"] = time.time()
+            return self.application_instances[scope_id]["input_queue"]
+        # See if we need to delete an old one
+        while len(self.application_instances) > self.max_applications:
+            self.delete_oldest_application_instance()
+        # Make an instance of the application
+        input_queue = asyncio.Queue()
+        application_instance = self.application(scope=scope)
+        # Run it, and stash the future for later checking
+        future = asyncio.ensure_future(
+            application_instance(
+                receive=input_queue.get,
+                send=lambda message: self.application_send(scope, message),
+            )
+        )
+        self.application_instances[scope_id] = {
+            "input_queue": input_queue,
+            "future": future,
+            "scope": scope,
+            "last_used": time.time(),
+        }
+        return input_queue
+
+    def delete_oldest_application_instance(self):
+        """
+        Finds and deletes the oldest application instance
+        """
+        oldest_time = min(
+            details["last_used"] for details in self.application_instances.values()
+        )
+        for scope_id, details in self.application_instances.items():
+            if details["last_used"] == oldest_time:
+                self.delete_application_instance(scope_id)
+                # Return to make sure we only delete one in case two have
+                # the same oldest time
+                return
+
+    def delete_application_instance(self, scope_id):
+        """
+        Removes an application instance (makes sure its task is stopped,
+        then removes it from the current set)
+        """
+        details = self.application_instances[scope_id]
+        del self.application_instances[scope_id]
+        if not details["future"].done():
+            details["future"].cancel()
+
+    async def application_checker(self):
+        """
+        Goes through the set of current application instance Futures and cleans up
+        any that are done/prints exceptions for any that errored.
+        """
+        while True:
+            await asyncio.sleep(self.application_checker_interval)
+            for scope_id, details in list(self.application_instances.items()):
+                if details["future"].done():
+                    exception = details["future"].exception()
+                    if exception:
+                        await self.application_exception(exception, details)
+                    try:
+                        del self.application_instances[scope_id]
+                    except KeyError:
+                        # Exception handling might have already got here before us. That's fine.
+                        pass
+
+    async def application_exception(self, exception, application_details):
+        """
+        Called whenever an application coroutine has an exception.
+        """
+        logging.error(
+            "Exception inside application: %s\n%s%s",
+            exception,
+            "".join(traceback.format_tb(exception.__traceback__)),
+            "  {}".format(exception),
+        )

venv/lib/python3.7/site-packages/asgiref/sync.py

@@ -0,0 +1,304 @@
+import asyncio
+import asyncio.coroutines
+import functools
+import os
+import sys
+import threading
+from concurrent.futures import Future, ThreadPoolExecutor
+
+from .current_thread_executor import CurrentThreadExecutor
+from .local import Local
+
+try:
+    import contextvars  # Python 3.7+ only.
+except ImportError:
+    contextvars = None
+
+
+class AsyncToSync:
+    """
+    Utility class which turns an awaitable that only works on the thread with
+    the event loop into a synchronous callable that works in a subthread.
+
+    If the call stack contains an async loop, the code runs there.
+    Otherwise, the code runs in a new loop in a new thread.
+
+    Either way, this thread then pauses and waits to run any thread_sensitive
+    code called from further down the call stack using SyncToAsync, before
+    finally exiting once the async task returns.
+    """
+
+    # Maps launched Tasks to the threads that launched them (for locals impl)
+    launch_map = {}
+
+    # Keeps track of which CurrentThreadExecutor to use. This uses an asgiref
+    # Local, not a threadlocal, so that tasks can work out what their parent used.
+    executors = Local()
+
+    def __init__(self, awaitable, force_new_loop=False):
+        self.awaitable = awaitable
+        if force_new_loop:
+            # They have asked that we always run in a new sub-loop.
+            self.main_event_loop = None
+        else:
+            try:
+                self.main_event_loop = asyncio.get_event_loop()
+            except RuntimeError:
+                # There's no event loop in this thread. Look for the threadlocal if
+                # we're inside SyncToAsync
+                self.main_event_loop = getattr(
+                    SyncToAsync.threadlocal, "main_event_loop", None
+                )
+
+    def __call__(self, *args, **kwargs):
+        # You can't call AsyncToSync from a thread with a running event loop
+        try:
+            event_loop = asyncio.get_event_loop()
+        except RuntimeError:
+            pass
+        else:
+            if event_loop.is_running():
+                raise RuntimeError(
+                    "You cannot use AsyncToSync in the same thread as an async event loop - "
+                    "just await the async function directly."
+                )
+        # Make a future for the return information
+        call_result = Future()
+        # Get the source thread
+        source_thread = threading.current_thread()
+        # Make a CurrentThreadExecutor we'll use to idle in this thread - we
+        # need one for every sync frame, even if there's one above us in the
+        # same thread.
+        if hasattr(self.executors, "current"):
+            old_current_executor = self.executors.current
+        else:
+            old_current_executor = None
+        current_executor = CurrentThreadExecutor()
+        self.executors.current = current_executor
+        # Use call_soon_threadsafe to schedule a synchronous callback on the
+        # main event loop's thread if it's there, otherwise make a new loop
+        # in this thread.
+        try:
+            if not (self.main_event_loop and self.main_event_loop.is_running()):
+                # Make our own event loop - in a new thread - and run inside that.
+                loop = asyncio.new_event_loop()
+                loop_executor = ThreadPoolExecutor(max_workers=1)
+                loop_future = loop_executor.submit(
+                    self._run_event_loop,
+                    loop,
+                    self.main_wrap(
+                        args, kwargs, call_result, source_thread, sys.exc_info()
+                    ),
+                )
+                if current_executor:
+                    # Run the CurrentThreadExecutor until the future is done
+                    current_executor.run_until_future(loop_future)
+                # Wait for future and/or allow for exception propagation
+                loop_future.result()
+            else:
+                # Call it inside the existing loop
+                self.main_event_loop.call_soon_threadsafe(
+                    self.main_event_loop.create_task,
+                    self.main_wrap(
+                        args, kwargs, call_result, source_thread, sys.exc_info()
+                    ),
+                )
+                if current_executor:
+                    # Run the CurrentThreadExecutor until the future is done
+                    current_executor.run_until_future(call_result)
+        finally:
+            # Clean up any executor we were running
+            if hasattr(self.executors, "current"):
+                del self.executors.current
+            if old_current_executor:
+                self.executors.current = old_current_executor
+        # Wait for results from the future.
+        return call_result.result()
+
+    def _run_event_loop(self, loop, coro):
+        """
+        Runs the given event loop (designed to be called in a thread).
+        """
+        asyncio.set_event_loop(loop)
+        try:
+            loop.run_until_complete(coro)
+        finally:
+            try:
+                if hasattr(loop, "shutdown_asyncgens"):
+                    loop.run_until_complete(loop.shutdown_asyncgens())
+            finally:
+                loop.close()
+                asyncio.set_event_loop(self.main_event_loop)
+
+    def __get__(self, parent, objtype):
+        """
+        Include self for methods
+        """
+        func = functools.partial(self.__call__, parent)
+        return functools.update_wrapper(func, self.awaitable)
+
+    async def main_wrap(self, args, kwargs, call_result, source_thread, exc_info):
+        """
+        Wraps the awaitable with something that puts the result into the
+        result/exception future.
+        """
+        current_task = SyncToAsync.get_current_task()
+        self.launch_map[current_task] = source_thread
+        try:
+            # If we have an exception, run the function inside the except block
+            # after raising it so exc_info is correctly populated.
+            if exc_info[1]:
+                try:
+                    raise exc_info[1]
+                except:
+                    result = await self.awaitable(*args, **kwargs)
+            else:
+                result = await self.awaitable(*args, **kwargs)
+        except Exception as e:
+            call_result.set_exception(e)
+        else:
+            call_result.set_result(result)
+        finally:
+            del self.launch_map[current_task]
+
+
+class SyncToAsync:
+    """
+    Utility class which turns a synchronous callable into an awaitable that
+    runs in a threadpool. It also sets a threadlocal inside the thread so
+    calls to AsyncToSync can escape it.
+
+    If thread_sensitive is passed, the code will run in the same thread as any
+    outer code. This is needed for underlying Python code that is not
+    threadsafe (for example, code which handles SQLite database connections).
+
+    If the outermost program is async (i.e. SyncToAsync is outermost), then
+    this will be a dedicated single sub-thread that all sync code runs in,
+    one after the other. If the outermost program is sync (i.e. AsyncToSync is
+    outermost), this will just be the main thread. This is achieved by idling
+    with a CurrentThreadExecutor while AsyncToSync is blocking its sync parent,
+    rather than just blocking.
+    """
+
+    # If they've set ASGI_THREADS, update the default asyncio executor for now
+    if "ASGI_THREADS" in os.environ:
+        loop = asyncio.get_event_loop()
+        loop.set_default_executor(
+            ThreadPoolExecutor(max_workers=int(os.environ["ASGI_THREADS"]))
+        )
+
+    # Maps launched threads to the coroutines that spawned them
+    launch_map = {}
+
+    # Storage for main event loop references
+    threadlocal = threading.local()
+
+    # Single-thread executor for thread-sensitive code
+    single_thread_executor = ThreadPoolExecutor(max_workers=1)
+
+    def __init__(self, func, thread_sensitive=False):
+        self.func = func
+        self._thread_sensitive = thread_sensitive
+        self._is_coroutine = asyncio.coroutines._is_coroutine
+        try:
+            self.__self__ = func.__self__
+        except AttributeError:
+            pass
+
+    async def __call__(self, *args, **kwargs):
+        loop = asyncio.get_event_loop()
+
+        # Work out what thread to run the code in
+        if self._thread_sensitive:
+            if hasattr(AsyncToSync.executors, "current"):
+                # If we have a parent sync thread above somewhere, use that
+                executor = AsyncToSync.executors.current
+            else:
+                # Otherwise, we run it in a fixed single thread
+                executor = self.single_thread_executor
+        else:
+            executor = None  # Use default
+
+        if contextvars is not None:
+            context = contextvars.copy_context()
+            child = functools.partial(self.func, *args, **kwargs)
+            func = context.run
+            args = (child,)
+            kwargs = {}
+        else:
+            func = self.func
+
+        # Run the code in the right thread
+        future = loop.run_in_executor(
+            executor,
+            functools.partial(
+                self.thread_handler,
+                loop,
+                self.get_current_task(),
+                sys.exc_info(),
+                func,
+                *args,
+                **kwargs
+            ),
+        )
+        return await asyncio.wait_for(future, timeout=None)
+
+    def __get__(self, parent, objtype):
+        """
+        Include self for methods
+        """
+        return functools.partial(self.__call__, parent)
+
+    def thread_handler(self, loop, source_task, exc_info, func, *args, **kwargs):
+        """
+        Wraps the sync application with exception handling.
+        """
+        # Set the threadlocal for AsyncToSync
+        self.threadlocal.main_event_loop = loop
+        # Set the task mapping (used for the locals module)
+        current_thread = threading.current_thread()
+        if AsyncToSync.launch_map.get(source_task) == current_thread:
+            # Our parent task was launched from this same thread, so don't make
+            # a launch map entry - let it shortcut over us! (and stop infinite loops)
+            parent_set = False
+        else:
+            self.launch_map[current_thread] = source_task
+            parent_set = True
+        # Run the function
+        try:
+            # If we have an exception, run the function inside the except block
+            # after raising it so exc_info is correctly populated.
+            if exc_info[1]:
+                try:
+                    raise exc_info[1]
+                except:
+                    return func(*args, **kwargs)
+            else:
+                return func(*args, **kwargs)
+        finally:
+            # Only delete the launch_map parent if we set it, otherwise it is
+            # from someone else.
+            if parent_set:
+                del self.launch_map[current_thread]
+
+    @staticmethod
+    def get_current_task():
+        """
+        Cross-version implementation of asyncio.current_task()
+
+        Returns None if there is no task.
+        """
+        try:
+            if hasattr(asyncio, "current_task"):
+                # Python 3.7 and up
+                return asyncio.current_task()
+            else:
+                # Python 3.6
+                return asyncio.Task.current_task()
+        except RuntimeError:
+            return None
+
+
+# Lowercase is more sensible for most things
+sync_to_async = SyncToAsync
+async_to_sync = AsyncToSync

venv/lib/python3.7/site-packages/asgiref/timeout.py

@@ -0,0 +1,128 @@
+# This code is originally sourced from the aio-libs project "async_timeout",
+# under the Apache 2.0 license. You may see the original project at
+# https://github.com/aio-libs/async-timeout
+
+# It is vendored here to reduce chain-dependencies on this library, and
+# modified slightly to remove some features we don't use.
+
+
+import asyncio
+import sys
+from types import TracebackType
+from typing import Any, Optional, Type  # noqa
+
+PY_37 = sys.version_info >= (3, 7)
+
+
+class timeout:
+    """timeout context manager.
+
+    Useful in cases when you want to apply timeout logic around block
+    of code or in cases when asyncio.wait_for is not suitable. For example:
+
+    >>> with timeout(0.001):
+    ...     async with aiohttp.get('https://github.com') as r:
+    ...         await r.text()
+
+
+    timeout - value in seconds or None to disable timeout logic
+    loop - asyncio compatible event loop
+    """
+
+    def __init__(
+        self,
+        timeout: Optional[float],
+        *,
+        loop: Optional[asyncio.AbstractEventLoop] = None
+    ) -> None:
+        self._timeout = timeout
+        if loop is None:
+            loop = asyncio.get_event_loop()
+        self._loop = loop
+        self._task = None  # type: Optional[asyncio.Task[Any]]
+        self._cancelled = False
+        self._cancel_handler = None  # type: Optional[asyncio.Handle]
+        self._cancel_at = None  # type: Optional[float]
+
+    def __enter__(self) -> "timeout":
+        return self._do_enter()
+
+    def __exit__(
+        self,
+        exc_type: Type[BaseException],
+        exc_val: BaseException,
+        exc_tb: TracebackType,
+    ) -> Optional[bool]:
+        self._do_exit(exc_type)
+        return None
+
+    async def __aenter__(self) -> "timeout":
+        return self._do_enter()
+
+    async def __aexit__(
+        self,
+        exc_type: Type[BaseException],
+        exc_val: BaseException,
+        exc_tb: TracebackType,
+    ) -> None:
+        self._do_exit(exc_type)
+
+    @property
+    def expired(self) -> bool:
+        return self._cancelled
+
+    @property
+    def remaining(self) -> Optional[float]:
+        if self._cancel_at is not None:
+            return max(self._cancel_at - self._loop.time(), 0.0)
+        else:
+            return None
+
+    def _do_enter(self) -> "timeout":
+        # Support Tornado 5- without timeout
+        # Details: https://github.com/python/asyncio/issues/392
+        if self._timeout is None:
+            return self
+
+        self._task = current_task(self._loop)
+        if self._task is None:
+            raise RuntimeError(
+                "Timeout context manager should be used " "inside a task"
+            )
+
+        if self._timeout <= 0:
+            self._loop.call_soon(self._cancel_task)
+            return self
+
+        self._cancel_at = self._loop.time() + self._timeout
+        self._cancel_handler = self._loop.call_at(self._cancel_at, self._cancel_task)
+        return self
+
+    def _do_exit(self, exc_type: Type[BaseException]) -> None:
+        if exc_type is asyncio.CancelledError and self._cancelled:
+            self._cancel_handler = None
+            self._task = None
+            raise asyncio.TimeoutError
+        if self._timeout is not None and self._cancel_handler is not None:
+            self._cancel_handler.cancel()
+            self._cancel_handler = None
+        self._task = None
+        return None
+
+    def _cancel_task(self) -> None:
+        if self._task is not None:
+            self._task.cancel()
+            self._cancelled = True
+
+
+def current_task(loop: asyncio.AbstractEventLoop) -> "asyncio.Task[Any]":
+    if PY_37:
+        task = asyncio.current_task(loop=loop)  # type: ignore
+    else:
+        task = asyncio.Task.current_task(loop=loop)
+    if task is None:
+        # this should be removed, tokio must use register_task and family API
+        if hasattr(loop, "current_task"):
+            task = loop.current_task()  # type: ignore
+
+    return task

venv/lib/python3.7/site-packages/attr/__init__.pyi

@@ -0,0 +1,278 @@
+from typing import (
+    Any,
+    Callable,
+    Dict,
+    Generic,
+    List,
+    Optional,
+    Sequence,
+    Mapping,
+    Tuple,
+    Type,
+    TypeVar,
+    Union,
+    overload,
+)
+
+# `import X as X` is required to make these public
+from . import exceptions as exceptions
+from . import filters as filters
+from . import converters as converters
+from . import validators as validators
+
+from ._version_info import VersionInfo
+
+__version__: str
+__version_info__: VersionInfo
+__title__: str
+__description__: str
+__url__: str
+__uri__: str
+__author__: str
+__email__: str
+__license__: str
+__copyright__: str
+
+_T = TypeVar("_T")
+_C = TypeVar("_C", bound=type)
+
+_ValidatorType = Callable[[Any, Attribute[_T], _T], Any]
+_ConverterType = Callable[[Any], _T]
+_FilterType = Callable[[Attribute[_T], _T], bool]
+_ReprType = Callable[[Any], str]
+_ReprArgType = Union[bool, _ReprType]
+# FIXME: in reality, if multiple validators are passed they must be in a list or tuple,
+# but those are invariant and so would prevent subtypes of _ValidatorType from working
+# when passed in a list or tuple.
+_ValidatorArgType = Union[_ValidatorType[_T], Sequence[_ValidatorType[_T]]]
+
+# _make --
+
+NOTHING: object
+
+# NOTE: Factory lies about its return type to make this possible: `x: List[int] = Factory(list)`
+# Work around mypy issue #4554 in the common case by using an overload.
+@overload
+def Factory(factory: Callable[[], _T]) -> _T: ...
+@overload
+def Factory(
+    factory: Union[Callable[[Any], _T], Callable[[], _T]],
+    takes_self: bool = ...,
+) -> _T: ...
+
+class Attribute(Generic[_T]):
+    name: str
+    default: Optional[_T]
+    validator: Optional[_ValidatorType[_T]]
+    repr: _ReprArgType
+    cmp: bool
+    eq: bool
+    order: bool
+    hash: Optional[bool]
+    init: bool
+    converter: Optional[_ConverterType[_T]]
+    metadata: Dict[Any, Any]
+    type: Optional[Type[_T]]
+    kw_only: bool
+
+# NOTE: We had several choices for the annotation to use for type arg:
+# 1) Type[_T]
+#   - Pros: Handles simple cases correctly
+#   - Cons: Might produce less informative errors in the case of conflicting TypeVars
+#   e.g. `attr.ib(default='bad', type=int)`
+# 2) Callable[..., _T]
+#   - Pros: Better error messages than #1 for conflicting TypeVars
+#   - Cons: Terrible error messages for validator checks.
+#   e.g. attr.ib(type=int, validator=validate_str)
+#        -> error: Cannot infer function type argument
+# 3) type (and do all of the work in the mypy plugin)
+#   - Pros: Simple here, and we could customize the plugin with our own errors.
+#   - Cons: Would need to write mypy plugin code to handle all the cases.
+# We chose option #1.
+
+# `attr` lies about its return type to make the following possible:
+#     attr()    -> Any
+#     attr(8)   -> int
+#     attr(validator=<some callable>)  -> Whatever the callable expects.
+# This makes this type of assignments possible:
+#     x: int = attr(8)
+#
+# This form catches explicit None or no default but with no other arguments returns Any.
+@overload
+def attrib(
+    default: None = ...,
+    validator: None = ...,
+    repr: _ReprArgType = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    metadata: Optional[Mapping[Any, Any]] = ...,
+    type: None = ...,
+    converter: None = ...,
+    factory: None = ...,
+    kw_only: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> Any: ...
+
+# This form catches an explicit None or no default and infers the type from the other arguments.
+@overload
+def attrib(
+    default: None = ...,
+    validator: Optional[_ValidatorArgType[_T]] = ...,
+    repr: _ReprArgType = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    metadata: Optional[Mapping[Any, Any]] = ...,
+    type: Optional[Type[_T]] = ...,
+    converter: Optional[_ConverterType[_T]] = ...,
+    factory: Optional[Callable[[], _T]] = ...,
+    kw_only: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> _T: ...
+
+# This form catches an explicit default argument.
+@overload
+def attrib(
+    default: _T,
+    validator: Optional[_ValidatorArgType[_T]] = ...,
+    repr: _ReprArgType = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    metadata: Optional[Mapping[Any, Any]] = ...,
+    type: Optional[Type[_T]] = ...,
+    converter: Optional[_ConverterType[_T]] = ...,
+    factory: Optional[Callable[[], _T]] = ...,
+    kw_only: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> _T: ...
+
+# This form covers type=non-Type: e.g. forward references (str), Any
+@overload
+def attrib(
+    default: Optional[_T] = ...,
+    validator: Optional[_ValidatorArgType[_T]] = ...,
+    repr: _ReprArgType = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    metadata: Optional[Mapping[Any, Any]] = ...,
+    type: object = ...,
+    converter: Optional[_ConverterType[_T]] = ...,
+    factory: Optional[Callable[[], _T]] = ...,
+    kw_only: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> Any: ...
+@overload
+def attrs(
+    maybe_cls: _C,
+    these: Optional[Dict[str, Any]] = ...,
+    repr_ns: Optional[str] = ...,
+    repr: bool = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> _C: ...
+@overload
+def attrs(
+    maybe_cls: None = ...,
+    these: Optional[Dict[str, Any]] = ...,
+    repr_ns: Optional[str] = ...,
+    repr: bool = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> Callable[[_C], _C]: ...
+
+# TODO: add support for returning NamedTuple from the mypy plugin
+class _Fields(Tuple[Attribute[Any], ...]):
+    def __getattr__(self, name: str) -> Attribute[Any]: ...
+
+def fields(cls: type) -> _Fields: ...
+def fields_dict(cls: type) -> Dict[str, Attribute[Any]]: ...
+def validate(inst: Any) -> None: ...
+
+# TODO: add support for returning a proper attrs class from the mypy plugin
+# we use Any instead of _CountingAttr so that e.g. `make_class('Foo', [attr.ib()])` is valid
+def make_class(
+    name: str,
+    attrs: Union[List[str], Tuple[str, ...], Dict[str, Any]],
+    bases: Tuple[type, ...] = ...,
+    repr_ns: Optional[str] = ...,
+    repr: bool = ...,
+    cmp: Optional[bool] = ...,
+    hash: Optional[bool] = ...,
+    init: bool = ...,
+    slots: bool = ...,
+    frozen: bool = ...,
+    weakref_slot: bool = ...,
+    str: bool = ...,
+    auto_attribs: bool = ...,
+    kw_only: bool = ...,
+    cache_hash: bool = ...,
+    auto_exc: bool = ...,
+    eq: Optional[bool] = ...,
+    order: Optional[bool] = ...,
+) -> type: ...
+
+# _funcs --
+
+# TODO: add support for returning TypedDict from the mypy plugin
+# FIXME: asdict/astuple do not honor their factory args.  waiting on one of these:
+# https://github.com/python/mypy/issues/4236
+# https://github.com/python/typing/issues/253
+def asdict(
+    inst: Any,
+    recurse: bool = ...,
+    filter: Optional[_FilterType[Any]] = ...,
+    dict_factory: Type[Mapping[Any, Any]] = ...,
+    retain_collection_types: bool = ...,
+) -> Dict[str, Any]: ...
+
+# TODO: add support for returning NamedTuple from the mypy plugin
+def astuple(
+    inst: Any,
+    recurse: bool = ...,
+    filter: Optional[_FilterType[Any]] = ...,
+    tuple_factory: Type[Sequence[Any]] = ...,
+    retain_collection_types: bool = ...,
+) -> Tuple[Any, ...]: ...
+def has(cls: type) -> bool: ...
+def assoc(inst: _T, **changes: Any) -> _T: ...
+def evolve(inst: _T, **changes: Any) -> _T: ...
+
+# _config --
+
+def set_run_validators(run: bool) -> None: ...
+def get_run_validators() -> bool: ...
+
+# aliases --
+
+s = attributes = attrs
+ib = attr = attrib
+dataclass = attrs  # Technically, partial(attrs, auto_attribs=True) ;)

venv/lib/python3.7/site-packages/attr/_compat.py

@@ -0,0 +1,230 @@
+from __future__ import absolute_import, division, print_function
+
+import platform
+import sys
+import types
+import warnings
+
+
+PY2 = sys.version_info[0] == 2
+PYPY = platform.python_implementation() == "PyPy"
+
+
+if PYPY or sys.version_info[:2] >= (3, 6):
+    ordered_dict = dict
+else:
+    from collections import OrderedDict
+
+    ordered_dict = OrderedDict
+
+
+if PY2:
+    from UserDict import IterableUserDict
+    from collections import Mapping, Sequence
+
+    # We 'bundle' isclass instead of using inspect as importing inspect is
+    # fairly expensive (order of 10-15 ms for a modern machine in 2016)
+    def isclass(klass):
+        return isinstance(klass, (type, types.ClassType))
+
+    # TYPE is used in exceptions, repr(int) is different on Python 2 and 3.
+    TYPE = "type"
+
+    def iteritems(d):
+        return d.iteritems()
+
+    # Python 2 is bereft of a read-only dict proxy, so we make one!
+    class ReadOnlyDict(IterableUserDict):
+        """
+        Best-effort read-only dict wrapper.
+        """
+
+        def __setitem__(self, key, val):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise TypeError(
+                "'mappingproxy' object does not support item assignment"
+            )
+
+        def update(self, _):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise AttributeError(
+                "'mappingproxy' object has no attribute 'update'"
+            )
+
+        def __delitem__(self, _):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise TypeError(
+                "'mappingproxy' object does not support item deletion"
+            )
+
+        def clear(self):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise AttributeError(
+                "'mappingproxy' object has no attribute 'clear'"
+            )
+
+        def pop(self, key, default=None):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise AttributeError(
+                "'mappingproxy' object has no attribute 'pop'"
+            )
+
+        def popitem(self):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise AttributeError(
+                "'mappingproxy' object has no attribute 'popitem'"
+            )
+
+        def setdefault(self, key, default=None):
+            # We gently pretend we're a Python 3 mappingproxy.
+            raise AttributeError(
+                "'mappingproxy' object has no attribute 'setdefault'"
+            )
+
+        def __repr__(self):
+            # Override to be identical to the Python 3 version.
+            return "mappingproxy(" + repr(self.data) + ")"
+
+    def metadata_proxy(d):
+        res = ReadOnlyDict()
+        res.data.update(d)  # We blocked update, so we have to do it like this.
+        return res
+
+    def just_warn(*args, **kw):  # pragma: nocover
+        """
+        We only warn on Python 3 because we are not aware of any concrete
+        consequences of not setting the cell on Python 2.
+        """
+
+
+else:  # Python 3 and later.
+    from collections.abc import Mapping, Sequence  # noqa
+
+    def just_warn(*args, **kw):
+        """
+        We only warn on Python 3 because we are not aware of any concrete
+        consequences of not setting the cell on Python 2.
+        """
+        warnings.warn(
+            "Running interpreter doesn't sufficiently support code object "
+            "introspection.  Some features like bare super() or accessing "
+            "__class__ will not work with slotted classes.",
+            RuntimeWarning,
+            stacklevel=2,
+        )
+
+    def isclass(klass):
+        return isinstance(klass, type)
+
+    TYPE = "class"
+
+    def iteritems(d):
+        return d.items()
+
+    def metadata_proxy(d):
+        return types.MappingProxyType(dict(d))
+
+
+def make_set_closure_cell():
+    """Return a function of two arguments (cell, value) which sets
+    the value stored in the closure cell `cell` to `value`.
+    """
+    # pypy makes this easy. (It also supports the logic below, but
+    # why not do the easy/fast thing?)
+    if PYPY:  # pragma: no cover
+
+        def set_closure_cell(cell, value):
+            cell.__setstate__((value,))
+
+        return set_closure_cell
+
+    # Otherwise gotta do it the hard way.
+
+    # Create a function that will set its first cellvar to `value`.
+    def set_first_cellvar_to(value):
+        x = value
+        return
+
+        # This function will be eliminated as dead code, but
+        # not before its reference to `x` forces `x` to be
+        # represented as a closure cell rather than a local.
+        def force_x_to_be_a_cell():  # pragma: no cover
+            return x
+
+    try:
+        # Extract the code object and make sure our assumptions about
+        # the closure behavior are correct.
+        if PY2:
+            co = set_first_cellvar_to.func_code
+        else:
+            co = set_first_cellvar_to.__code__
+        if co.co_cellvars != ("x",) or co.co_freevars != ():
+            raise AssertionError  # pragma: no cover
+
+        # Convert this code object to a code object that sets the
+        # function's first _freevar_ (not cellvar) to the argument.
+        if sys.version_info >= (3, 8):
+            # CPython 3.8+ has an incompatible CodeType signature
+            # (added a posonlyargcount argument) but also added
+            # CodeType.replace() to do this without counting parameters.
+            set_first_freevar_code = co.replace(
+                co_cellvars=co.co_freevars, co_freevars=co.co_cellvars
+            )
+        else:
+            args = [co.co_argcount]
+            if not PY2:
+                args.append(co.co_kwonlyargcount)
+            args.extend(
+                [
+                    co.co_nlocals,
+                    co.co_stacksize,
+                    co.co_flags,
+                    co.co_code,
+                    co.co_consts,
+                    co.co_names,
+                    co.co_varnames,
+                    co.co_filename,
+                    co.co_name,
+                    co.co_firstlineno,
+                    co.co_lnotab,
+                    # These two arguments are reversed:
+                    co.co_cellvars,
+                    co.co_freevars,
+                ]
+            )
+            set_first_freevar_code = types.CodeType(*args)
+
+        def set_closure_cell(cell, value):
+            # Create a function using the set_first_freevar_code,
+            # whose first closure cell is `cell`. Calling it will
+            # change the value of that cell.
+            setter = types.FunctionType(
+                set_first_freevar_code, {}, "setter", (), (cell,)
+            )
+            # And call it to set the cell.
+            setter(value)
+
+        # Make sure it works on this interpreter:
+        def make_func_with_cell():
+            x = None
+
+            def func():
+                return x  # pragma: no cover
+
+            return func
+
+        if PY2:
+            cell = make_func_with_cell().func_closure[0]
+        else:
+            cell = make_func_with_cell().__closure__[0]
+        set_closure_cell(cell, 100)
+        if cell.cell_contents != 100:
+            raise AssertionError  # pragma: no cover
+
+    except Exception:
+        return just_warn
+    else:
+        return set_closure_cell
+
+
+set_closure_cell = make_set_closure_cell()

venv/lib/python3.7/site-packages/attr/_config.py

@@ -0,0 +1,23 @@
+from __future__ import absolute_import, division, print_function
+
+
+__all__ = ["set_run_validators", "get_run_validators"]
+
+_run_validators = True
+
+
+def set_run_validators(run):
+    """
+    Set whether or not validators are run.  By default, they are run.
+    """
+    if not isinstance(run, bool):
+        raise TypeError("'run' must be bool.")
+    global _run_validators
+    _run_validators = run
+
+
+def get_run_validators():
+    """
+    Return whether or not validators are run.
+    """
+    return _run_validators

venv/lib/python3.7/site-packages/attr/converters.py

@@ -0,0 +1,78 @@
+"""
+Commonly useful converters.
+"""
+
+from __future__ import absolute_import, division, print_function
+
+from ._make import NOTHING, Factory
+
+
+def optional(converter):
+    """
+    A converter that allows an attribute to be optional. An optional attribute
+    is one which can be set to ``None``.
+
+    :param callable converter: the converter that is used for non-``None``
+        values.
+
+    .. versionadded:: 17.1.0
+    """
+
+    def optional_converter(val):
+        if val is None:
+            return None
+        return converter(val)
+
+    return optional_converter
+
+
+def default_if_none(default=NOTHING, factory=None):
+    """
+    A converter that allows to replace ``None`` values by *default* or the
+    result of *factory*.
+
+    :param default: Value to be used if ``None`` is passed. Passing an instance
+       of `attr.Factory` is supported, however the ``takes_self`` option
+       is *not*.
+    :param callable factory: A callable that takes not parameters whose result
+       is used if ``None`` is passed.
+
+    :raises TypeError: If **neither** *default* or *factory* is passed.
+    :raises TypeError: If **both** *default* and *factory* are passed.
+    :raises ValueError: If an instance of `attr.Factory` is passed with
+       ``takes_self=True``.
+
+    .. versionadded:: 18.2.0
+    """
+    if default is NOTHING and factory is None:
+        raise TypeError("Must pass either `default` or `factory`.")
+
+    if default is not NOTHING and factory is not None:
+        raise TypeError(
+            "Must pass either `default` or `factory` but not both."
+        )
+
+    if factory is not None:
+        default = Factory(factory)
+
+    if isinstance(default, Factory):
+        if default.takes_self:
+            raise ValueError(
+                "`takes_self` is not supported by default_if_none."
+            )
+
+        def default_if_none_converter(val):
+            if val is not None:
+                return val
+
+            return default.factory()
+
+    else:
+
+        def default_if_none_converter(val):
+            if val is not None:
+                return val
+
+            return default
+
+    return default_if_none_converter

venv/lib/python3.7/site-packages/attr/converters.pyi

@@ -0,0 +1,12 @@
+from typing import TypeVar, Optional, Callable, overload
+from . import _ConverterType
+
+_T = TypeVar("_T")
+
+def optional(
+    converter: _ConverterType[_T]
+) -> _ConverterType[Optional[_T]]: ...
+@overload
+def default_if_none(default: _T) -> _ConverterType[_T]: ...
+@overload
+def default_if_none(*, factory: Callable[[], _T]) -> _ConverterType[_T]: ...

venv/lib/python3.7/site-packages/attr/exceptions.pyi

@@ -0,0 +1,15 @@
+from typing import Any
+
+class FrozenInstanceError(AttributeError):
+    msg: str = ...
+
+class AttrsAttributeNotFoundError(ValueError): ...
+class NotAnAttrsClassError(ValueError): ...
+class DefaultAlreadySetError(RuntimeError): ...
+class UnannotatedAttributeError(RuntimeError): ...
+class PythonTooOldError(RuntimeError): ...
+
+class NotCallableError(TypeError):
+    msg: str = ...
+    value: Any = ...
+    def __init__(self, msg: str, value: Any) -> None: ...

venv/lib/python3.7/site-packages/attr/filters.py

@@ -0,0 +1,52 @@
+"""
+Commonly useful filters for `attr.asdict`.
+"""
+
+from __future__ import absolute_import, division, print_function
+
+from ._compat import isclass
+from ._make import Attribute
+
+
+def _split_what(what):
+    """
+    Returns a tuple of `frozenset`s of classes and attributes.
+    """
+    return (
+        frozenset(cls for cls in what if isclass(cls)),
+        frozenset(cls for cls in what if isinstance(cls, Attribute)),
+    )
+
+
+def include(*what):
+    """
+    Whitelist *what*.
+
+    :param what: What to whitelist.
+    :type what: `list` of `type` or `attr.Attribute`\\ s
+
+    :rtype: `callable`
+    """
+    cls, attrs = _split_what(what)
+
+    def include_(attribute, value):
+        return value.__class__ in cls or attribute in attrs
+
+    return include_
+
+
+def exclude(*what):
+    """
+    Blacklist *what*.
+
+    :param what: What to blacklist.
+    :type what: `list` of classes or `attr.Attribute`\\ s.
+
+    :rtype: `callable`
+    """
+    cls, attrs = _split_what(what)
+
+    def exclude_(attribute, value):
+        return value.__class__ not in cls and attribute not in attrs
+
+    return exclude_

venv/lib/python3.7/site-packages/attrs-19.3.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

venv/lib/python3.7/site-packages/attrs-19.3.0.dist-info/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Hynek Schlawack
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

venv/lib/python3.7/site-packages/attrs-19.3.0.dist-info/METADATA

@@ -0,0 +1,229 @@
+Metadata-Version: 2.1
+Name: attrs
+Version: 19.3.0
+Summary: Classes Without Boilerplate
+Home-page: https://www.attrs.org/
+Author: Hynek Schlawack
+Author-email: hs@ox.cx
+Maintainer: Hynek Schlawack
+Maintainer-email: hs@ox.cx
+License: MIT
+Project-URL: Documentation, https://www.attrs.org/
+Project-URL: Bug Tracker, https://github.com/python-attrs/attrs/issues
+Project-URL: Source Code, https://github.com/python-attrs/attrs
+Keywords: class,attribute,boilerplate
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Natural Language :: English
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Programming Language :: Python :: 3.7
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Requires-Python: >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*
+Description-Content-Type: text/x-rst
+Provides-Extra: azure-pipelines
+Requires-Dist: coverage ; extra == 'azure-pipelines'
+Requires-Dist: hypothesis ; extra == 'azure-pipelines'
+Requires-Dist: pympler ; extra == 'azure-pipelines'
+Requires-Dist: pytest (>=4.3.0) ; extra == 'azure-pipelines'
+Requires-Dist: six ; extra == 'azure-pipelines'
+Requires-Dist: zope.interface ; extra == 'azure-pipelines'
+Requires-Dist: pytest-azurepipelines ; extra == 'azure-pipelines'
+Provides-Extra: dev
+Requires-Dist: coverage ; extra == 'dev'
+Requires-Dist: hypothesis ; extra == 'dev'
+Requires-Dist: pympler ; extra == 'dev'
+Requires-Dist: pytest (>=4.3.0) ; extra == 'dev'
+Requires-Dist: six ; extra == 'dev'
+Requires-Dist: zope.interface ; extra == 'dev'
+Requires-Dist: sphinx ; extra == 'dev'
+Requires-Dist: pre-commit ; extra == 'dev'
+Provides-Extra: docs
+Requires-Dist: sphinx ; extra == 'docs'
+Requires-Dist: zope.interface ; extra == 'docs'
+Provides-Extra: tests
+Requires-Dist: coverage ; extra == 'tests'
+Requires-Dist: hypothesis ; extra == 'tests'
+Requires-Dist: pympler ; extra == 'tests'
+Requires-Dist: pytest (>=4.3.0) ; extra == 'tests'
+Requires-Dist: six ; extra == 'tests'
+Requires-Dist: zope.interface ; extra == 'tests'
+
+.. image:: https://www.attrs.org/en/latest/_static/attrs_logo.png
+   :alt: attrs Logo
+
+======================================
+``attrs``: Classes Without Boilerplate
+======================================
+
+.. image:: https://readthedocs.org/projects/attrs/badge/?version=stable
+   :target: https://www.attrs.org/en/stable/?badge=stable
+   :alt: Documentation Status
+
+.. image:: https://attrs.visualstudio.com/attrs/_apis/build/status/python-attrs.attrs?branchName=master
+   :target: https://attrs.visualstudio.com/attrs/_build/latest?definitionId=1&branchName=master
+   :alt: CI Status
+
+.. image:: https://codecov.io/github/python-attrs/attrs/branch/master/graph/badge.svg
+   :target: https://codecov.io/github/python-attrs/attrs
+   :alt: Test Coverage
+
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+   :target: https://github.com/psf/black
+   :alt: Code style: black
+
+.. teaser-begin
+
+``attrs`` is the Python package that will bring back the **joy** of **writing classes** by relieving you from the drudgery of implementing object protocols (aka `dunder <https://nedbatchelder.com/blog/200605/dunder.html>`_ methods).
+
+Its main goal is to help you to write **concise** and **correct** software without slowing down your code.
+
+.. -spiel-end-
+
+For that, it gives you a class decorator and a way to declaratively define the attributes on that class:
+
+.. -code-begin-
+
+.. code-block:: pycon
+
+   >>> import attr
+
+   >>> @attr.s
+   ... class SomeClass(object):
+   ...     a_number = attr.ib(default=42)
+   ...     list_of_numbers = attr.ib(factory=list)
+   ...
+   ...     def hard_math(self, another_number):
+   ...         return self.a_number + sum(self.list_of_numbers) * another_number
+
+
+   >>> sc = SomeClass(1, [1, 2, 3])
+   >>> sc
+   SomeClass(a_number=1, list_of_numbers=[1, 2, 3])
+
+   >>> sc.hard_math(3)
+   19
+   >>> sc == SomeClass(1, [1, 2, 3])
+   True
+   >>> sc != SomeClass(2, [3, 2, 1])
+   True
+
+   >>> attr.asdict(sc)
+   {'a_number': 1, 'list_of_numbers': [1, 2, 3]}
+
+   >>> SomeClass()
+   SomeClass(a_number=42, list_of_numbers=[])
+
+   >>> C = attr.make_class("C", ["a", "b"])
+   >>> C("foo", "bar")
+   C(a='foo', b='bar')
+
+
+After *declaring* your attributes ``attrs`` gives you:
+
+- a concise and explicit overview of the class's attributes,
+- a nice human-readable ``__repr__``,
+- a complete set of comparison methods (equality and ordering),
+- an initializer,
+- and much more,
+
+*without* writing dull boilerplate code again and again and *without* runtime performance penalties.
+
+On Python 3.6 and later, you can often even drop the calls to ``attr.ib()`` by using `type annotations <https://www.attrs.org/en/latest/types.html>`_.
+
+This gives you the power to use actual classes with actual types in your code instead of confusing ``tuple``\ s or `confusingly behaving <https://www.attrs.org/en/stable/why.html#namedtuples>`_ ``namedtuple``\ s.
+Which in turn encourages you to write *small classes* that do `one thing well <https://www.destroyallsoftware.com/talks/boundaries>`_.
+Never again violate the `single responsibility principle <https://en.wikipedia.org/wiki/Single_responsibility_principle>`_ just because implementing ``__init__`` et al is a painful drag.
+
+
+.. -testimonials-
+
+Testimonials
+============
+
+**Amber Hawkie Brown**, Twisted Release Manager and Computer Owl:
+
+  Writing a fully-functional class using attrs takes me less time than writing this testimonial.
+
+
+**Glyph Lefkowitz**, creator of `Twisted <https://twistedmatrix.com/>`_, `Automat <https://pypi.org/project/Automat/>`_, and other open source software, in `The One Python Library Everyone Needs <https://glyph.twistedmatrix.com/2016/08/attrs.html>`_:
+
+  I’m looking forward to is being able to program in Python-with-attrs everywhere.
+  It exerts a subtle, but positive, design influence in all the codebases I’ve see it used in.
+
+
+**Kenneth Reitz**, creator of `Requests <https://github.com/psf/requests>`_ (`on paper no less <https://twitter.com/hynek/status/866817877650751488>`_!):
+
+  attrs—classes for humans.  I like it.
+
+
+**Łukasz Langa**, creator of `Black <https://github.com/psf/black>`_, prolific Python core developer, and release manager for Python 3.8 and 3.9:
+
+  I'm increasingly digging your attr.ocity. Good job!
+
+
+.. -end-
+
+.. -project-information-
+
+Getting Help
+============
+
+Please use the ``python-attrs`` tag on `StackOverflow <https://stackoverflow.com/questions/tagged/python-attrs>`_ to get help.
+
+Answering questions of your fellow developers is also great way to help the project!
+
+
+Project Information
+===================
+
+``attrs`` is released under the `MIT <https://choosealicense.com/licenses/mit/>`_ license,
+its documentation lives at `Read the Docs <https://www.attrs.org/>`_,
+the code on `GitHub <https://github.com/python-attrs/attrs>`_,
+and the latest release on `PyPI <https://pypi.org/project/attrs/>`_.
+It’s rigorously tested on Python 2.7, 3.4+, and PyPy.
+
+We collect information on **third-party extensions** in our `wiki <https://github.com/python-attrs/attrs/wiki/Extensions-to-attrs>`_.
+Feel free to browse and add your own!
+
+If you'd like to contribute to ``attrs`` you're most welcome and we've written `a little guide <https://www.attrs.org/en/latest/contributing.html>`_ to get you started!
+
+
+Release Information
+===================
+
+19.3.0 (2019-10-15)
+-------------------
+
+Changes
+^^^^^^^
+
+- Fixed ``auto_attribs`` usage when default values cannot be compared directly with ``==``, such as ``numpy`` arrays.
+  `#585 <https://github.com/python-attrs/attrs/issues/585>`_
+
+`Full changelog <https://www.attrs.org/en/stable/changelog.html>`_.
+
+Credits
+=======
+
+``attrs`` is written and maintained by `Hynek Schlawack <https://hynek.me/>`_.
+
+The development is kindly supported by `Variomedia AG <https://www.variomedia.de/>`_.
+
+A full list of contributors can be found in `GitHub's overview <https://github.com/python-attrs/attrs/graphs/contributors>`_.
+
+It’s the spiritual successor of `characteristic <https://characteristic.readthedocs.io/>`_ and aspires to fix some of it clunkiness and unfortunate decisions.
+Both were inspired by Twisted’s `FancyEqMixin <https://twistedmatrix.com/documents/current/api/twisted.python.util.FancyEqMixin.html>`_ but both are implemented using class decorators because `subclassing is bad for you <https://www.youtube.com/watch?v=3MNVP9-hglc>`_, m’kay?
+
+

venv/lib/python3.7/site-packages/autobahn-19.11.1.dist-info/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) Crossbar.io Technologies GmbH
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

venv/lib/python3.7/site-packages/autobahn-19.11.1.dist-info/RECORD

@@ -0,0 +1,347 @@
+autobahn/__init__.py,sha256=uCdcBR1rNLDCosowHs3ea1A1lH10lrbC_aPjM5YGjOM,1399
+autobahn/__main__.py,sha256=vMSMsxDkAWFpIv-53lNBn9k7iFIstouSfLmJcTZPTtc,11114
+autobahn/_version.py,sha256=nAupaY5VTtY8dIxAKX-Xn8RL_GqiKBfOKcwKZ7Ii_XM,1319
+autobahn/exception.py,sha256=zJG4u2Y7iQdvBocW6EA0WYCCjB4s50lJw7nTUwwbKDA,1614
+autobahn/util.py,sha256=Cu68EMPBGYN85_AvrVBY0E2StDiUwHVngCk1U9IfuGs,27599
+autobahn/asyncio/__init__.py,sha256=EfiMPwA8Ivr-QPWKr1iuM5xpeb7S-n1UJyFeihRUnfA,2055
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venv/lib/python3.7/site-packages/autobahn/_version.py

@@ -0,0 +1,27 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+__version__ = u'19.11.1'

venv/lib/python3.7/site-packages/autobahn/asyncio/rawsocket.py

@@ -0,0 +1,505 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+try:
+    import asyncio
+except ImportError:
+    # trollious for py2 support - however it has been deprecated
+    import trollius as asyncio
+import struct
+import math
+
+from autobahn.util import public, _LazyHexFormatter
+from autobahn.wamp.exception import ProtocolError, SerializationError, TransportLost
+from autobahn.asyncio.util import peer2str, get_serializers
+import txaio
+
+__all__ = (
+    'WampRawSocketServerProtocol',
+    'WampRawSocketClientProtocol',
+    'WampRawSocketServerFactory',
+    'WampRawSocketClientFactory'
+)
+
+txaio.use_asyncio()
+
+FRAME_TYPE_DATA = 0
+FRAME_TYPE_PING = 1
+FRAME_TYPE_PONG = 2
+
+MAGIC_BYTE = 0x7F
+
+
+class PrefixProtocol(asyncio.Protocol):
+
+    prefix_format = '!L'
+    prefix_length = struct.calcsize(prefix_format)
+    max_length = 16 * 1024 * 1024
+    max_length_send = max_length
+    log = txaio.make_logger()  # @UndefinedVariable
+
+    def connection_made(self, transport):
+        self.transport = transport
+        peer = transport.get_extra_info('peername')
+        self.peer = peer2str(peer)
+        self.log.debug('RawSocker Asyncio: Connection made with peer {peer}', peer=self.peer)
+        self._buffer = b''
+        self._header = None
+        self._wait_closed = txaio.create_future()
+
+    @property
+    def is_closed(self):
+        if hasattr(self, '_wait_closed'):
+            return self._wait_closed
+        else:
+            f = txaio.create_future()
+            f.set_result(True)
+            return f
+
+    def connection_lost(self, exc):
+        self.log.debug('RawSocker Asyncio: Connection lost')
+        self.transport = None
+        self._wait_closed.set_result(True)
+        self._on_connection_lost(exc)
+
+    def _on_connection_lost(self, exc):
+        pass
+
+    def protocol_error(self, msg):
+        self.log.error(msg)
+        self.transport.close()
+
+    def sendString(self, data):
+        l = len(data)
+        if l > self.max_length_send:
+            raise ValueError('Data too big')
+        header = struct.pack(self.prefix_format, len(data))
+        self.transport.write(header)
+        self.transport.write(data)
+
+    def ping(self, data):
+        raise NotImplementedError()
+
+    def pong(self, data):
+        raise NotImplementedError()
+
+    def data_received(self, data):
+        self._buffer += data
+        pos = 0
+        remaining = len(self._buffer)
+        while remaining >= self.prefix_length:
+            # do not recalculate header if available from previous call
+            if self._header:
+                frame_type, frame_length = self._header
+            else:
+                header = self._buffer[pos:pos + self.prefix_length]
+                frame_type = ord(header[0:1]) & 0b00000111
+                if frame_type > FRAME_TYPE_PONG:
+                    self.protocol_error('Invalid frame type')
+                    return
+                frame_length = struct.unpack(self.prefix_format, b'\0' + header[1:])[0]
+                if frame_length > self.max_length:
+                    self.protocol_error('Frame too big')
+                    return
+
+            if remaining - self.prefix_length >= frame_length:
+                self._header = None
+                pos += self.prefix_length
+                remaining -= self.prefix_length
+                data = self._buffer[pos:pos + frame_length]
+                pos += frame_length
+                remaining -= frame_length
+
+                if frame_type == FRAME_TYPE_DATA:
+                    self.stringReceived(data)
+                elif frame_type == FRAME_TYPE_PING:
+                    self.ping(data)
+                elif frame_type == FRAME_TYPE_PONG:
+                    self.pong(data)
+            else:
+                # save heaader
+                self._header = frame_type, frame_length
+                break
+
+        self._buffer = self._buffer[pos:]
+
+    def stringReceived(self, data):
+        raise NotImplementedError()
+
+
+class RawSocketProtocol(PrefixProtocol):
+
+    def __init__(self):
+        max_size = None
+        if max_size:
+            exp = int(math.ceil(math.log(max_size, 2))) - 9
+            if exp > 15:
+                raise ValueError('Maximum length is 16M')
+            self.max_length = 2**(exp + 9)
+            self._length_exp = exp
+        else:
+            self._length_exp = 15
+            self.max_length = 2**24
+
+    def connection_made(self, transport):
+        PrefixProtocol.connection_made(self, transport)
+        self._handshake_done = False
+
+    def _on_handshake_complete(self):
+        raise NotImplementedError()
+
+    def parse_handshake(self):
+        buf = bytearray(self._buffer[:4])
+        if buf[0] != MAGIC_BYTE:
+            raise HandshakeError('Invalid magic byte in handshake')
+            return
+        ser = buf[1] & 0x0F
+        lexp = buf[1] >> 4
+        self.max_length_send = 2**(lexp + 9)
+        if buf[2] != 0 or buf[3] != 0:
+            raise HandshakeError('Reserved bytes must be zero')
+        return ser, lexp
+
+    def process_handshake(self):
+        raise NotImplementedError()
+
+    def data_received(self, data):
+        self.log.debug('RawSocker Asyncio: data received {data}', data=_LazyHexFormatter(data))
+        if self._handshake_done:
+            return PrefixProtocol.data_received(self, data)
+        else:
+            self._buffer += data
+            if len(self._buffer) >= 4:
+                try:
+                    self.process_handshake()
+                except HandshakeError as e:
+                    self.protocol_error('Handshake error : {err}'.format(err=e))
+                    return
+                self._handshake_done = True
+                self._on_handshake_complete()
+                data = self._buffer[4:]
+                self._buffer = b''
+                if data:
+                    PrefixProtocol.data_received(self, data)
+
+
+ERR_SERIALIZER_UNSUPPORTED = 1
+
+ERRMAP = {
+    0: "illegal (must not be used)",
+    1: "serializer unsupported",
+    2: "maximum message length unacceptable",
+    3: "use of reserved bits (unsupported feature)",
+    4: "maximum connection count reached"
+}
+
+
+class HandshakeError(Exception):
+    def __init__(self, msg, code=0):
+        Exception.__init__(self, msg if not code else msg + ' : %s' % ERRMAP.get(code))
+
+
+class RawSocketClientProtocol(RawSocketProtocol):
+
+    def check_serializer(self, ser_id):
+        return True
+
+    def process_handshake(self):
+        ser_id, err = self.parse_handshake()
+        if ser_id == 0:
+            raise HandshakeError('Server returned handshake error', err)
+        if self.serializer_id != ser_id:
+            raise HandshakeError('Server returned different serializer {0} then requested {1}'
+                                 .format(ser_id, self.serializer_id))
+
+    @property
+    def serializer_id(self):
+        raise NotImplementedError()
+
+    def connection_made(self, transport):
+        RawSocketProtocol.connection_made(self, transport)
+        # start handshake
+        hs = bytes(bytearray([MAGIC_BYTE,
+                              self._length_exp << 4 | self.serializer_id,
+                              0, 0]))
+        transport.write(hs)
+        self.log.debug('RawSocket Asyncio: Client handshake sent')
+
+
+class RawSocketServerProtocol(RawSocketProtocol):
+
+    def supports_serializer(self, ser_id):
+        raise NotImplementedError()
+
+    def process_handshake(self):
+        def send_response(lexp, ser_id):
+            b2 = lexp << 4 | (ser_id & 0x0f)
+            self.transport.write(bytes(bytearray([MAGIC_BYTE, b2, 0, 0])))
+        ser_id, _lexp = self.parse_handshake()
+        if not self.supports_serializer(ser_id):
+            send_response(ERR_SERIALIZER_UNSUPPORTED, 0)
+            raise HandshakeError('Serializer unsupported : {ser_id}'.format(ser_id=ser_id))
+        send_response(self._length_exp, ser_id)
+
+
+# this is transport independent part of WAMP protocol
+class WampRawSocketMixinGeneral(object):
+
+    def _on_handshake_complete(self):
+        self.log.debug("WampRawSocketProtocol: Handshake complete")
+        try:
+            self._session = self.factory._factory()
+            self._session.onOpen(self)
+        except Exception as e:
+            # Exceptions raised in onOpen are fatal ..
+            self.log.warn("WampRawSocketProtocol: ApplicationSession constructor / onOpen raised ({err})", err=e)
+            self.abort()
+        else:
+            self.log.info("ApplicationSession started.")
+
+    def stringReceived(self, payload):
+        self.log.debug("WampRawSocketProtocol: RX octets: {octets}", octets=_LazyHexFormatter(payload))
+        try:
+            for msg in self._serializer.unserialize(payload):
+                self.log.debug("WampRawSocketProtocol: RX WAMP message: {msg}", msg=msg)
+                self._session.onMessage(msg)
+
+        except ProtocolError as e:
+            self.log.warn("WampRawSocketProtocol: WAMP Protocol Error ({err}) - aborting connection", err=e)
+            self.abort()
+
+        except Exception as e:
+            self.log.warn("WampRawSocketProtocol: WAMP Internal Error ({err}) - aborting connection", err=e)
+            self.abort()
+
+    def send(self, msg):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.send`
+        """
+        if self.isOpen():
+            self.log.debug("WampRawSocketProtocol: TX WAMP message: {msg}", msg=msg)
+            try:
+                payload, _ = self._serializer.serialize(msg)
+            except Exception as e:
+                # all exceptions raised from above should be serialization errors ..
+                raise SerializationError("WampRawSocketProtocol: unable to serialize WAMP application payload ({0})"
+                                         .format(e))
+            else:
+                self.sendString(payload)
+                self.log.debug("WampRawSocketProtocol: TX octets: {octets}", octets=_LazyHexFormatter(payload))
+        else:
+            raise TransportLost()
+
+    def isOpen(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.isOpen`
+        """
+        return hasattr(self, '_session') and self._session is not None
+
+
+# this is asyncio dependent part of WAMP protocol
+class WampRawSocketMixinAsyncio(object):
+    """
+    Base class for asyncio-based WAMP-over-RawSocket protocols.
+    """
+
+    def _on_connection_lost(self, exc):
+        try:
+            wasClean = exc is None
+            self._session.onClose(wasClean)
+        except Exception as e:
+            # silently ignore exceptions raised here ..
+            self.log.warn("WampRawSocketProtocol: ApplicationSession.onClose raised ({err})", err=e)
+        self._session = None
+
+    def close(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.close`
+        """
+        if self.isOpen():
+            self.transport.close()
+        else:
+            raise TransportLost()
+
+    def abort(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.abort`
+        """
+        if self.isOpen():
+            if hasattr(self.transport, 'abort'):
+                # ProcessProtocol lacks abortConnection()
+                self.transport.abort()
+            else:
+                self.transport.close()
+        else:
+            raise TransportLost()
+
+
+@public
+class WampRawSocketServerProtocol(WampRawSocketMixinGeneral, WampRawSocketMixinAsyncio, RawSocketServerProtocol):
+    """
+    asyncio-based WAMP-over-RawSocket server protocol.
+
+    Implements:
+
+        * :class:`autobahn.wamp.interfaces.ITransport`
+    """
+
+    def supports_serializer(self, ser_id):
+        if ser_id in self.factory._serializers:
+            self._serializer = self.factory._serializers[ser_id]()
+            self.log.debug(
+                "WampRawSocketProtocol: client wants to use serializer '{serializer}'",
+                serializer=ser_id,
+            )
+            return True
+        else:
+            self.log.debug(
+                "WampRawSocketProtocol: opening handshake - no suitable serializer found (client requested {serializer}, and we have {serializers}",
+                serializer=ser_id,
+                serializers=self.factory._serializers.keys(),
+            )
+            self.abort()
+            return False
+
+    def get_channel_id(self, channel_id_type=u'tls-unique'):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.get_channel_id`
+        """
+        return None
+        # return transport_channel_id(self.transport, is_server=True, channel_id_type=channel_id_type)
+
+
+@public
+class WampRawSocketClientProtocol(WampRawSocketMixinGeneral, WampRawSocketMixinAsyncio, RawSocketClientProtocol):
+    """
+    asyncio-based WAMP-over-RawSocket client protocol.
+
+    Implements:
+
+        * :class:`autobahn.wamp.interfaces.ITransport`
+    """
+
+    @property
+    def serializer_id(self):
+        if not hasattr(self, '_serializer'):
+            self._serializer = self.factory._serializer
+        return self._serializer.RAWSOCKET_SERIALIZER_ID
+
+    def get_channel_id(self, channel_id_type=u'tls-unique'):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.get_channel_id`
+        """
+        return None
+        # return transport_channel_id(self.transport, is_server=False, channel_id_type=channel_id_type)
+
+
+class WampRawSocketFactory(object):
+    """
+    Adapter class for asyncio-based WebSocket client and server factories.def dataReceived(self, data):
+    """
+
+    log = txaio.make_logger()
+
+    @public
+    def __call__(self):
+        proto = self.protocol()
+        proto.factory = self
+        return proto
+
+
+@public
+class WampRawSocketServerFactory(WampRawSocketFactory):
+    """
+    asyncio-based WAMP-over-RawSocket server protocol factory.
+    """
+    protocol = WampRawSocketServerProtocol
+
+    def __init__(self, factory, serializers=None):
+        """
+
+        :param factory: A callable that produces instances that implement
+            :class:`autobahn.wamp.interfaces.ITransportHandler`
+        :type factory: callable
+
+        :param serializers: A list of WAMP serializers to use (or ``None``
+            for all available serializers).
+        :type serializers: list of objects implementing
+            :class:`autobahn.wamp.interfaces.ISerializer`
+        """
+        if callable(factory):
+            self._factory = factory
+        else:
+            self._factory = lambda: factory
+
+        # when no serializers were requested specifically, then support
+        # all that are available
+        if serializers is None:
+            serializers = get_serializers()
+
+            if not serializers:
+                raise Exception("could not import any WAMP serializers")
+
+        self._serializers = {ser.RAWSOCKET_SERIALIZER_ID: ser for ser in serializers}
+
+
+@public
+class WampRawSocketClientFactory(WampRawSocketFactory):
+    """
+    asyncio-based WAMP-over-RawSocket client factory.
+    """
+    protocol = WampRawSocketClientProtocol
+
+    def __init__(self, factory, serializer=None):
+        """
+
+        :param factory: A callable that produces instances that implement
+            :class:`autobahn.wamp.interfaces.ITransportHandler`
+        :type factory: callable
+
+        :param serializer: The WAMP serializer to use (or ``None`` for
+           "best" serializer, chosen as the first serializer available from
+           this list: CBOR, MessagePack, UBJSON, JSON).
+        :type serializer: object implementing :class:`autobahn.wamp.interfaces.ISerializer`
+        """
+        if callable(factory):
+            self._factory = factory
+        else:
+            self._factory = lambda: factory
+
+        # when no serializer was requested specifically, use the first
+        # one available
+        if serializer is None:
+            serializers = get_serializers()
+            if serializers:
+                serializer = serializers[0]()
+
+        if serializer is None:
+            raise Exception("could not import any WAMP serializer")
+
+        self._serializer = serializer

venv/lib/python3.7/site-packages/autobahn/asyncio/websocket.py

@@ -0,0 +1,396 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+from collections import deque
+
+import txaio
+txaio.use_asyncio()
+
+from autobahn.util import public
+from autobahn.asyncio.util import transport_channel_id, peer2str
+from autobahn.wamp import websocket
+from autobahn.websocket import protocol
+from autobahn.websocket.types import TransportDetails
+
+try:
+    import asyncio
+    from asyncio import iscoroutine
+    from asyncio import Future
+except ImportError:
+    # Trollius >= 0.3 was renamed
+    # noinspection PyUnresolvedReferences
+    import trollius as asyncio
+    from trollius import iscoroutine
+    from trollius import Future
+
+if hasattr(asyncio, 'ensure_future'):
+    ensure_future = asyncio.ensure_future
+else:  # Deprecated since Python 3.4.4
+    ensure_future = getattr(asyncio, 'async')
+
+__all__ = (
+    'WebSocketServerProtocol',
+    'WebSocketClientProtocol',
+    'WebSocketServerFactory',
+    'WebSocketClientFactory',
+    'WampWebSocketServerProtocol',
+    'WampWebSocketClientProtocol',
+    'WampWebSocketServerFactory',
+    'WampWebSocketClientFactory',
+)
+
+
+def yields(value):
+    """
+    Returns ``True`` iff the value yields.
+
+    .. seealso:: http://stackoverflow.com/questions/20730248/maybedeferred-analog-with-asyncio
+    """
+    return isinstance(value, Future) or iscoroutine(value)
+
+
+class WebSocketAdapterProtocol(asyncio.Protocol):
+    """
+    Adapter class for asyncio-based WebSocket client and server protocols.
+    """
+
+    def connection_made(self, transport):
+        self.transport = transport
+
+        self.receive_queue = deque()
+        self._consume()
+
+        try:
+            self.peer = peer2str(transport.get_extra_info('peername'))
+        except:
+            self.peer = u"?"
+
+        self._connectionMade()
+
+    def connection_lost(self, exc):
+        self._connectionLost(exc)
+        # according to asyncio docs, connection_lost(None) is called
+        # if something else called transport.close()
+        if exc is not None:
+            self.transport.close()
+        self.transport = None
+
+    def _consume(self):
+        self.waiter = Future(loop=self.factory.loop or txaio.config.loop)
+
+        def process(_):
+            while len(self.receive_queue):
+                data = self.receive_queue.popleft()
+                if self.transport:
+                    self._dataReceived(data)
+            self._consume()
+
+        self.waiter.add_done_callback(process)
+
+    def data_received(self, data):
+        self.receive_queue.append(data)
+        if not self.waiter.done():
+            self.waiter.set_result(None)
+
+    def _closeConnection(self, abort=False):
+        if abort and hasattr(self.transport, 'abort'):
+            self.transport.abort()
+        else:
+            self.transport.close()
+
+    def _onOpen(self):
+        res = self.onOpen()
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageBegin(self, isBinary):
+        res = self.onMessageBegin(isBinary)
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageFrameBegin(self, length):
+        res = self.onMessageFrameBegin(length)
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageFrameData(self, payload):
+        res = self.onMessageFrameData(payload)
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageFrameEnd(self):
+        res = self.onMessageFrameEnd()
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageFrame(self, payload):
+        res = self.onMessageFrame(payload)
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessageEnd(self):
+        res = self.onMessageEnd()
+        if yields(res):
+            ensure_future(res)
+
+    def _onMessage(self, payload, isBinary):
+        res = self.onMessage(payload, isBinary)
+        if yields(res):
+            ensure_future(res)
+
+    def _onPing(self, payload):
+        res = self.onPing(payload)
+        if yields(res):
+            ensure_future(res)
+
+    def _onPong(self, payload):
+        res = self.onPong(payload)
+        if yields(res):
+            ensure_future(res)
+
+    def _onClose(self, wasClean, code, reason):
+        res = self.onClose(wasClean, code, reason)
+        if yields(res):
+            ensure_future(res)
+
+    def registerProducer(self, producer, streaming):
+        raise Exception("not implemented")
+
+    def unregisterProducer(self):
+        # note that generic websocket/protocol.py code calls
+        # .unregisterProducer whenever we dropConnection -- that's
+        # correct behavior on Twisted so either we'd have to
+        # try/except there, or special-case Twisted, ..or just make
+        # this "not an error"
+        pass
+
+
+@public
+class WebSocketServerProtocol(WebSocketAdapterProtocol, protocol.WebSocketServerProtocol):
+    """
+    Base class for asyncio-based WebSocket server protocols.
+
+    Implements:
+
+    * :class:`autobahn.websocket.interfaces.IWebSocketChannel`
+    """
+
+    log = txaio.make_logger()
+
+    def get_channel_id(self, channel_id_type=u'tls-unique'):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.get_channel_id`
+        """
+        return transport_channel_id(self.transport, True, channel_id_type)
+
+
+@public
+class WebSocketClientProtocol(WebSocketAdapterProtocol, protocol.WebSocketClientProtocol):
+    """
+    Base class for asyncio-based WebSocket client protocols.
+
+    Implements:
+
+    * :class:`autobahn.websocket.interfaces.IWebSocketChannel`
+    """
+
+    log = txaio.make_logger()
+
+    def _onConnect(self, response):
+        res = self.onConnect(response)
+        if yields(res):
+            ensure_future(res)
+
+    def startTLS(self):
+        raise Exception("WSS over explicit proxies not implemented")
+
+    def get_channel_id(self, channel_id_type=u'tls-unique'):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.get_channel_id`
+        """
+        return transport_channel_id(self.transport, False, channel_id_type)
+
+    def _create_transport_details(self):
+        """
+        Internal helper.
+        Base class calls this to create a TransportDetails
+        """
+        is_secure = self.transport.get_extra_info('peercert', None) is not None
+        if is_secure:
+            secure_channel_id = {
+                u'tls-unique': transport_channel_id(self.transport, False, 'tls-unique'),
+            }
+        else:
+            secure_channel_id = {}
+        return TransportDetails(peer=self.peer, is_secure=is_secure, secure_channel_id=secure_channel_id)
+
+
+class WebSocketAdapterFactory(object):
+    """
+    Adapter class for asyncio-based WebSocket client and server factories.
+    """
+    log = txaio.make_logger()
+
+    def __call__(self):
+        proto = self.protocol()
+        proto.factory = self
+        return proto
+
+
+@public
+class WebSocketServerFactory(WebSocketAdapterFactory, protocol.WebSocketServerFactory):
+    """
+    Base class for asyncio-based WebSocket server factories.
+
+    Implements:
+
+    * :class:`autobahn.websocket.interfaces.IWebSocketServerChannelFactory`
+    """
+
+    protocol = WebSocketServerProtocol
+
+    def __init__(self, *args, **kwargs):
+        """
+        .. note::
+            In addition to all arguments to the constructor of
+            :meth:`autobahn.websocket.interfaces.IWebSocketServerChannelFactory`,
+            you can supply a ``loop`` keyword argument to specify the
+            asyncio event loop to be used.
+        """
+        loop = kwargs.pop('loop', None)
+        self.loop = loop or asyncio.get_event_loop()
+
+        protocol.WebSocketServerFactory.__init__(self, *args, **kwargs)
+
+
+@public
+class WebSocketClientFactory(WebSocketAdapterFactory, protocol.WebSocketClientFactory):
+    """
+    Base class for asyncio-based WebSocket client factories.
+
+    Implements:
+
+    * :class:`autobahn.websocket.interfaces.IWebSocketClientChannelFactory`
+    """
+
+    def __init__(self, *args, **kwargs):
+        """
+
+        .. note::
+            In addition to all arguments to the constructor of
+            :meth:`autobahn.websocket.interfaces.IWebSocketClientChannelFactory`,
+            you can supply a ``loop`` keyword argument to specify the
+            asyncio event loop to be used.
+        """
+        loop = kwargs.pop('loop', None)
+        self.loop = loop or asyncio.get_event_loop()
+
+        protocol.WebSocketClientFactory.__init__(self, *args, **kwargs)
+
+
+@public
+class WampWebSocketServerProtocol(websocket.WampWebSocketServerProtocol, WebSocketServerProtocol):
+    """
+    asyncio-based WAMP-over-WebSocket server protocol.
+
+    Implements:
+
+    * :class:`autobahn.wamp.interfaces.ITransport`
+    """
+
+
+@public
+class WampWebSocketServerFactory(websocket.WampWebSocketServerFactory, WebSocketServerFactory):
+    """
+    asyncio-based WAMP-over-WebSocket server factory.
+    """
+
+    protocol = WampWebSocketServerProtocol
+
+    def __init__(self, factory, *args, **kwargs):
+        """
+
+        :param factory: A callable that produces instances that implement
+            :class:`autobahn.wamp.interfaces.ITransportHandler`
+        :type factory: callable
+
+        :param serializers: A list of WAMP serializers to use (or ``None``
+            for all available serializers).
+        :type serializers: list of objects implementing
+            :class:`autobahn.wamp.interfaces.ISerializer`
+        """
+
+        serializers = kwargs.pop('serializers', None)
+
+        websocket.WampWebSocketServerFactory.__init__(self, factory, serializers)
+
+        kwargs['protocols'] = self._protocols
+
+        # noinspection PyCallByClass
+        WebSocketServerFactory.__init__(self, *args, **kwargs)
+
+
+@public
+class WampWebSocketClientProtocol(websocket.WampWebSocketClientProtocol, WebSocketClientProtocol):
+    """
+    asyncio-based WAMP-over-WebSocket client protocols.
+
+    Implements:
+
+    * :class:`autobahn.wamp.interfaces.ITransport`
+    """
+
+
+@public
+class WampWebSocketClientFactory(websocket.WampWebSocketClientFactory, WebSocketClientFactory):
+    """
+    asyncio-based WAMP-over-WebSocket client factory.
+    """
+
+    protocol = WampWebSocketClientProtocol
+
+    def __init__(self, factory, *args, **kwargs):
+        """
+
+        :param factory: A callable that produces instances that implement
+            :class:`autobahn.wamp.interfaces.ITransportHandler`
+        :type factory: callable
+
+        :param serializer: The WAMP serializer to use (or ``None`` for
+           "best" serializer, chosen as the first serializer available from
+           this list: CBOR, MessagePack, UBJSON, JSON).
+        :type serializer: object implementing :class:`autobahn.wamp.interfaces.ISerializer`
+        """
+
+        serializers = kwargs.pop('serializers', None)
+
+        websocket.WampWebSocketClientFactory.__init__(self, factory, serializers)
+
+        kwargs['protocols'] = self._protocols
+
+        WebSocketClientFactory.__init__(self, *args, **kwargs)

venv/lib/python3.7/site-packages/autobahn/exception.py

@@ -0,0 +1,41 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+from autobahn.util import public
+
+__all__ = (
+    'PayloadExceededError',
+)
+
+
+@public
+class PayloadExceededError(RuntimeError):
+    """
+    Exception raised when the serialized and framed (eg WebSocket/RawSocket) WAMP payload
+    exceeds the transport message size limit.
+    """

venv/lib/python3.7/site-packages/autobahn/nvx/_utf8validator.c

@@ -0,0 +1,646 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+// The MIT License (MIT)
+//
+// Copyright (c) Crossbar.io Technologies GmbH
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+///////////////////////////////////////////////////////////////////////////////
+
+#include <stdlib.h>
+#include <stdint.h>
+
+// http://stackoverflow.com/questions/11228855/header-files-for-simd-intrinsics
+#include <x86intrin.h>
+
+
+#define UTF8_ACCEPT 0
+#define UTF8_REJECT 1
+
+
+typedef struct {
+   size_t   current_index;
+   size_t   total_index;
+   int      state;
+   int      impl;
+} utf8_validator_t;
+
+
+#define UTF8_VALIDATOR_OPTIMAL 0
+#define UTF8_VALIDATOR_TABLE_DFA 1
+#define UTF8_VALIDATOR_UNROLLED_DFA 2
+#define UTF8_VALIDATOR_SSE2_DFA 3
+#define UTF8_VALIDATOR_SSE41_DFA 4
+
+
+int nvx_utf8vld_get_impl (void* utf8vld) {
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   return vld->impl;
+}
+
+int nvx_utf8vld_set_impl (void* utf8vld, int impl) {
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   if (impl) {
+      // set requested implementation
+      //
+#ifndef __SSE4_1__
+#  ifdef __SSE2__
+      if (impl <= UTF8_VALIDATOR_SSE2_DFA) {
+         vld->impl = impl;
+      }
+#  else
+      if (impl <= UTF8_VALIDATOR_UNROLLED_DFA) {
+         vld->impl = impl;
+      }
+#  endif
+#else
+      if (impl <= UTF8_VALIDATOR_SSE41_DFA) {
+         vld->impl = impl;
+      }
+#endif
+
+   } else {
+      // set optimal implementation
+      //
+#ifndef __SSE4_1__
+#  ifdef __SSE2__
+      vld->impl = UTF8_VALIDATOR_SSE2_DFA;
+#  else
+      vld->impl = UTF8_VALIDATOR_UNROLLED_DFA;
+#  endif
+#else
+      vld->impl = UTF8_VALIDATOR_SSE41_DFA;
+#endif
+
+   }
+   return vld->impl;
+}
+
+
+void nvx_utf8vld_reset (void* utf8vld) {
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   vld->state = 0;
+   vld->current_index = -1;
+   vld->total_index = -1;
+}
+
+
+void* nvx_utf8vld_new () {
+   void* p = malloc(sizeof(utf8_validator_t));
+   nvx_utf8vld_reset(p);
+   nvx_utf8vld_set_impl(p, 0);
+   return p;
+}
+
+
+void nvx_utf8vld_free (void* utf8vld) {
+   free (utf8vld);
+}
+
+
+// unrolled DFA from http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+//
+static const uint8_t UTF8VALIDATOR_DFA[] __attribute__((aligned(64))) =
+{
+   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 00..1f
+   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 20..3f
+   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 40..5f
+   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 60..7f
+   1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, // 80..9f
+   7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, // a0..bf
+   8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, // c0..df
+
+   0xa,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x3,0x3, // e0..ef
+   0xb,0x6,0x6,0x6,0x5,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8,0x8, // f0..ff
+   0x0,0x1,0x2,0x3,0x5,0x8,0x7,0x1,0x1,0x1,0x4,0x6,0x1,0x1,0x1,0x1, // s0..s0
+   1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1, // s1..s2
+   1,2,1,1,1,1,1,2,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1, // s3..s4
+   1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,3,1,3,1,1,1,1,1,1, // s5..s6
+   1,3,1,1,1,1,1,3,1,3,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1  // s7..s8
+};
+
+
+int _nvx_utf8vld_validate_table (void* utf8vld, const uint8_t* data, size_t length) {
+
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   int state = vld->state;
+
+   const uint8_t* end = data + length;
+
+   while (data < end && state != 1) {
+      state = UTF8VALIDATOR_DFA[256 + state * 16 + UTF8VALIDATOR_DFA[*data++]];
+   }
+
+   vld->state = state;
+
+   if (state == 0) {
+      // UTF8 is valid and ends on codepoint
+      return 0;
+   } else {
+      if (state == 1) {
+         // UTF8 is invalid
+         return -1;
+      } else {
+         // UTF8 is valid, but does not end on codepoint (needs more data)
+         return 1;
+      }
+   }
+}
+
+
+// unrolled DFA from http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
+//
+#define DFA_TRANSITION(state, octet) \
+   if (state == 0) { \
+      if (octet >= 0x00 && octet <= 0x7f) { \
+         /* reflective state 0 */ \
+      } else if (octet >= 0xc2 && octet <= 0xdf) { \
+         state = 2; \
+      } else if ((octet >= 0xe1 && octet <= 0xec) || octet == 0xee || octet == 0xef) { \
+         state = 3; \
+      } else if (octet == 0xe0) { \
+         state = 4; \
+      } else if (octet == 0xed) { \
+         state = 5; \
+      } else if (octet == 0xf4) { \
+         state = 8; \
+      } else if (octet == 0xf1 || octet == 0xf2 || octet == 0xf3) { \
+         state = 7; \
+      } else if (octet == 0xf0) { \
+         state = 6; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 2) { \
+      if (octet >= 0x80 && octet <= 0xbf) { \
+         state = 0; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 3) { \
+      if (octet >= 0x80 && octet <= 0xbf) { \
+         state = 2; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 4) { \
+      if (octet >= 0xa0 && octet <= 0xbf) { \
+         state = 2; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 5) { \
+      if (octet >= 0x80 && octet <= 0x9f) { \
+         state = 2; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 6) { \
+      if (octet >= 0x90 && octet <= 0xbf) { \
+         state = 3; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 7) { \
+      if (octet >= 0x80 && octet <= 0xbf) { \
+         state = 3; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 8) { \
+      if (octet >= 0x80 && octet <= 0x8f) { \
+         state = 3; \
+      } else { \
+         state = 1; \
+      } \
+   } else if (state == 1) { \
+      /* refective state 1 */ \
+   } else { \
+      /* should not arrive here */ \
+   }
+
+
+int _nvx_utf8vld_validate_unrolled (void* utf8vld, const uint8_t* data, size_t length) {
+
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   int state = vld->state;
+
+   const uint8_t* tail_end = data + length;
+
+   while (data < tail_end && state != 1) {
+
+      // get tail octet
+      int octet = *data;
+
+      // do the DFA
+      DFA_TRANSITION(state, octet);
+
+      ++data;
+   }
+
+   vld->state = state;
+
+   if (state == 0) {
+      // UTF8 is valid and ends on codepoint
+      return 0;
+   } else {
+      if (state == 1) {
+         // UTF8 is invalid
+         return -1;
+      } else {
+         // UTF8 is valid, but does not end on codepoint (needs more data)
+         return 1;
+      }
+   }
+}
+
+
+/*
+   __m128i _mm_load_si128 (__m128i const* mem_addr)
+      #include "emmintrin.h"
+      Instruction: movdqa
+      CPUID Feature Flag: SSE2
+
+   int _mm_movemask_epi8 (__m128i a)
+      #include "emmintrin.h"
+      Instruction: pmovmskb
+      CPUID Feature Flag: SSE2
+
+   __m128i _mm_srli_si128 (__m128i a, int imm)
+      #include "emmintrin.h"
+      Instruction: psrldq
+      CPUID Feature Flag: SSE2
+
+   int _mm_cvtsi128_si32 (__m128i a)
+      #include "emmintrin.h"
+      Instruction: movd
+      CPUID Feature Flag: SSE2
+
+   int _mm_extract_epi16 (__m128i a, int imm)
+      #include "emmintrin.h"
+      Instruction: pextrw
+      CPUID Feature Flag: SSE2
+
+   int _mm_extract_epi8 (__m128i a, const int imm)
+      #include "smmintrin.h"
+      Instruction: pextrb
+      CPUID Feature Flag: SSE4.1
+*/
+
+#ifdef __SSE2__
+int _nvx_utf8vld_validate_sse2 (void* utf8vld, const uint8_t* data, size_t length) {
+
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   int state = vld->state;
+
+   const uint8_t* tail_end = data + length;
+
+   // process unaligned head (sub 16 octets)
+   //
+   size_t head_len = ((size_t) data) % sizeof(__m128i);
+   if (head_len) {
+
+      const uint8_t* head_end = data + head_len;
+
+      while (data < head_end && state != UTF8_REJECT) {
+
+         // get head octet
+         int octet = *data;
+
+         // do the DFA
+         DFA_TRANSITION(state, octet);
+
+         ++data;
+      }
+   }
+
+   // process aligned middle (16 octet chunks)
+   //
+   const __m128i* ptr = ((const __m128i*) data);
+   const __m128i* end = ((const __m128i*) data) + ((length - head_len) / sizeof(__m128i));
+
+   while (ptr < end && state != UTF8_REJECT) {
+
+      __builtin_prefetch(ptr + 1, 0, 3);
+      //__builtin_prefetch(ptr + 4, 0, 3); // 16*4=64: cache-line prefetch
+
+      __m128i xmm1 = _mm_load_si128(ptr);
+
+      if (__builtin_expect(state || _mm_movemask_epi8(xmm1), 0)) {
+
+         // copy to different reg - this allows the prefetching to
+         // do its job in the meantime (I guess ..)
+
+         // SSE2 variant
+         //
+         int octet;
+
+         // octet 0
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 1
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 2
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 3
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 4
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 5
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 6
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 7
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 8
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 9
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 10
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 11
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 12
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 13
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 14
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 15
+         xmm1 = _mm_srli_si128(xmm1,  1);
+         octet = 0xff & _mm_cvtsi128_si32(xmm1);
+         DFA_TRANSITION(state, octet);
+      }
+      ++ptr;
+   }
+
+   // process unaligned tail (sub 16 octets)
+   //
+   const uint8_t* tail_ptr = (const uint8_t*) ptr;
+
+   while (tail_ptr < tail_end && state != UTF8_REJECT) {
+
+      // get tail octet
+      int octet = *tail_ptr;
+
+      // do the DFA
+      DFA_TRANSITION(state, octet);
+
+      ++tail_ptr;
+   }
+
+   vld->state = state;
+
+   if (state == UTF8_ACCEPT) {
+      // UTF8 is valid and ends on codepoint
+      return 0;
+   } else {
+      if (state == UTF8_REJECT) {
+         // UTF8 is invalid
+         return -1;
+      } else {
+         // UTF8 is valid, but does not end on codepoint (needs more data)
+         return 1;
+      }
+   }
+}
+#endif
+
+
+#ifdef __SSE4_1__
+int _nvx_utf8vld_validate_sse4 (void* utf8vld, const uint8_t* data, size_t length) {
+
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   int state = vld->state;
+
+   const uint8_t* tail_end = data + length;
+
+   // process unaligned head (sub 16 octets)
+   //
+   size_t head_len = ((size_t) data) % sizeof(__m128i);
+   if (head_len) {
+
+      const uint8_t* head_end = data + head_len;
+
+      while (data < head_end && state != UTF8_REJECT) {
+
+         // get head octet
+         int octet = *data;
+
+         // do the DFA
+         DFA_TRANSITION(state, octet);
+
+         ++data;
+      }
+   }
+
+   // process aligned middle (16 octet chunks)
+   //
+   const __m128i* ptr = ((const __m128i*) data);
+   const __m128i* end = ((const __m128i*) data) + ((length - head_len) / sizeof(__m128i));
+
+   while (ptr < end && state != UTF8_REJECT) {
+
+      __builtin_prefetch(ptr + 1, 0, 3);
+      //__builtin_prefetch(ptr + 4, 0, 3); // 16*4=64: cache-line prefetch
+
+      __m128i xmm1 = _mm_load_si128(ptr);
+
+
+      if (__builtin_expect(state || _mm_movemask_epi8(xmm1), 0)) {
+
+         // copy to different reg - this allows the prefetching to
+         // do its job in the meantime (I guess ..)
+
+         // SSE4.1 variant
+         //
+         int octet;
+
+         // octet 0
+         octet = _mm_extract_epi8(xmm1, 0);
+         DFA_TRANSITION(state, octet);
+
+         // octet 1
+         octet = _mm_extract_epi8(xmm1, 1);
+         DFA_TRANSITION(state, octet);
+
+         // octet 2
+         octet = _mm_extract_epi8(xmm1, 2);
+         DFA_TRANSITION(state, octet);
+
+         // octet 3
+         octet = _mm_extract_epi8(xmm1, 3);
+         DFA_TRANSITION(state, octet);
+
+         // octet 4
+         octet = _mm_extract_epi8(xmm1, 4);
+         DFA_TRANSITION(state, octet);
+
+         // octet 5
+         octet = _mm_extract_epi8(xmm1, 5);
+         DFA_TRANSITION(state, octet);
+
+         // octet 6
+         octet = _mm_extract_epi8(xmm1, 6);
+         DFA_TRANSITION(state, octet);
+
+         // octet 7
+         octet = _mm_extract_epi8(xmm1, 7);
+         DFA_TRANSITION(state, octet);
+
+         // octet 8
+         octet = _mm_extract_epi8(xmm1, 8);
+         DFA_TRANSITION(state, octet);
+
+         // octet 9
+         octet = _mm_extract_epi8(xmm1, 9);
+         DFA_TRANSITION(state, octet);
+
+         // octet 10
+         octet = _mm_extract_epi8(xmm1, 10);
+         DFA_TRANSITION(state, octet);
+
+         // octet 11
+         octet = _mm_extract_epi8(xmm1, 11);
+         DFA_TRANSITION(state, octet);
+
+         // octet 12
+         octet = _mm_extract_epi8(xmm1, 12);
+         DFA_TRANSITION(state, octet);
+
+         // octet 13
+         octet = _mm_extract_epi8(xmm1, 13);
+         DFA_TRANSITION(state, octet);
+
+         // octet 14
+         octet = _mm_extract_epi8(xmm1, 14);
+         DFA_TRANSITION(state, octet);
+
+         // octet 15
+         octet = _mm_extract_epi8(xmm1, 15);
+         DFA_TRANSITION(state, octet);
+      }
+      ++ptr;
+   }
+
+   // process unaligned tail (sub 16 octets)
+   //
+   const uint8_t* tail_ptr = (const uint8_t*) ptr;
+
+   while (tail_ptr < tail_end && state != UTF8_REJECT) {
+
+      // get tail octet
+      int octet = *tail_ptr;
+
+      // do the DFA
+      DFA_TRANSITION(state, octet);
+
+      ++tail_ptr;
+   }
+
+   vld->state = state;
+
+   if (state == UTF8_ACCEPT) {
+      // UTF8 is valid and ends on codepoint
+      return 0;
+   } else {
+      if (state == UTF8_REJECT) {
+         // UTF8 is invalid
+         return -1;
+      } else {
+         // UTF8 is valid, but does not end on codepoint (needs more data)
+         return 1;
+      }
+   }
+}
+#endif
+
+
+int nvx_utf8vld_validate (void* utf8vld, const uint8_t* data, size_t length) {
+
+   utf8_validator_t* vld = (utf8_validator_t*) utf8vld;
+
+   switch (vld->impl) {
+      case UTF8_VALIDATOR_TABLE_DFA:
+         return _nvx_utf8vld_validate_table(utf8vld, data, length);
+      case UTF8_VALIDATOR_UNROLLED_DFA:
+         return _nvx_utf8vld_validate_unrolled(utf8vld, data, length);
+#ifdef __SSE2__
+      case UTF8_VALIDATOR_SSE2_DFA:
+         return _nvx_utf8vld_validate_table(utf8vld, data, length);
+#endif
+#ifdef __SSE4_1__
+      case UTF8_VALIDATOR_SSE41_DFA:
+         return _nvx_utf8vld_validate_table(utf8vld, data, length);
+#endif
+      default:
+         return _nvx_utf8vld_validate_table(utf8vld, data, length);
+   }
+}

venv/lib/python3.7/site-packages/autobahn/nvx/test/test_utf8validator.py

@@ -0,0 +1,357 @@
+# coding=utf-8
+
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import six
+import struct
+import unittest
+
+from autobahn.websocket.utf8validator import Utf8Validator as StandardUtf8Validator
+
+try:
+    from _nvx_utf8validator import lib  # noqa
+    from autobahn.nvx import Utf8Validator as NvxUtf8Validator
+except ImportError:
+    HAS_NVX = False
+else:
+    HAS_NVX = True
+
+
+def _create_utf8_test_sequences():
+    """
+    Create test sequences for UTF-8 decoder tests from
+    http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
+    """
+
+    UTF8_TEST_SEQUENCES = []
+
+    # 1 Some correct UTF-8 text
+    vss = b'\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5'
+    vs = [b"Some valid UTF-8 sequences", []]
+    vs[1].append((True, b'hello\x24world'))  # U+0024
+    vs[1].append((True, b'hello\xC2\xA2world'))  # U+00A2
+    vs[1].append((True, b'hello\xE2\x82\xACworld'))  # U+20AC
+    vs[1].append((True, b'hello\xF0\xA4\xAD\xA2world'))  # U+24B62
+    vs[1].append((True, vss))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # All prefixes of correct UTF-8 text
+    vs = [
+        b"All prefixes of a valid UTF-8 string that contains multi-byte code points",
+        []]
+    v = StandardUtf8Validator()
+    for i in range(1, len(vss) + 1):
+        v.reset()
+        res = v.validate(vss[:i])
+        vs[1].append((res[0] and res[1], vss[:i]))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 2.1 First possible sequence of a certain length
+    vs = [b"First possible sequence of a certain length", []]
+    vs[1].append((True, b'\x00'))
+    vs[1].append((True, b'\xc2\x80'))
+    vs[1].append((True, b'\xe0\xa0\x80'))
+    vs[1].append((True, b'\xf0\x90\x80\x80'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # the following conform to the UTF-8 integer encoding scheme, but
+    # valid UTF-8 only allows for Unicode code points up to U+10FFFF
+    vs = [b"First possible sequence length 5/6 (invalid codepoints)", []]
+    vs[1].append((False, b'\xf8\x88\x80\x80\x80'))
+    vs[1].append((False, b'\xfc\x84\x80\x80\x80\x80'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 2.2 Last possible sequence of a certain length
+    vs = [b"Last possible sequence of a certain length", []]
+    vs[1].append((True, b'\x7f'))
+    vs[1].append((True, b'\xdf\xbf'))
+    vs[1].append((True, b'\xef\xbf\xbf'))
+    vs[1].append((True, b'\xf4\x8f\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # the following conform to the UTF-8 integer encoding scheme, but
+    # valid UTF-8 only allows for Unicode code points up to U+10FFFF
+    vs = [b"Last possible sequence length 4/5/6 (invalid codepoints)", []]
+    vs[1].append((False, b'\xf7\xbf\xbf\xbf'))
+    vs[1].append((False, b'\xfb\xbf\xbf\xbf\xbf'))
+    vs[1].append((False, b'\xfd\xbf\xbf\xbf\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 2.3 Other boundary conditions
+    vs = [b"Other boundary conditions", []]
+    vs[1].append((True, b'\xed\x9f\xbf'))
+    vs[1].append((True, b'\xee\x80\x80'))
+    vs[1].append((True, b'\xef\xbf\xbd'))
+    vs[1].append((True, b'\xf4\x8f\xbf\xbf'))
+    vs[1].append((False, b'\xf4\x90\x80\x80'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 3.1  Unexpected continuation bytes
+    vs = [b"Unexpected continuation bytes", []]
+    vs[1].append((False, b'\x80'))
+    vs[1].append((False, b'\xbf'))
+    vs[1].append((False, b'\x80\xbf'))
+    vs[1].append((False, b'\x80\xbf\x80'))
+    vs[1].append((False, b'\x80\xbf\x80\xbf'))
+    vs[1].append((False, b'\x80\xbf\x80\xbf\x80'))
+    vs[1].append((False, b'\x80\xbf\x80\xbf\x80\xbf'))
+    s = b''
+
+    # 3.2  Lonely start characters
+    vs = [b"Lonely start characters", []]
+    m = [(0xc0, 0xdf), (0xe0, 0xef), (0xf0, 0xf7), (0xf8, 0xfb), (0xfc, 0xfd)]
+    for mm in m:
+        s = b''
+        for i in range(mm[0], mm[1]):
+            s += struct.pack('BB', i, 0x20)
+            # s += chr(i)
+            # s += chr(0x20)
+        vs[1].append((False, s))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 3.3  Sequences with last continuation byte missing
+    vs = [b"Sequences with last continuation byte missing", []]
+    k = [b'\xc0', b'\xe0\x80', b'\xf0\x80\x80', b'\xf8\x80\x80\x80', b'\xfc\x80\x80\x80\x80',
+         b'\xdf', b'\xef\xbf', b'\xf7\xbf\xbf', b'\xfb\xbf\xbf\xbf', b'\xfd\xbf\xbf\xbf\xbf']
+    for kk in k:
+        vs[1].append((False, kk))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 3.4  Concatenation of incomplete sequences
+    vs = [b"Concatenation of incomplete sequences", []]
+    vs[1].append((False, b''.join(k)))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 3.5  Impossible bytes
+    vs = [b"Impossible bytes", []]
+    vs[1].append((False, b'\xfe'))
+    vs[1].append((False, b'\xff'))
+    vs[1].append((False, b'\xfe\xfe\xff\xff'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 4.1  Examples of an overlong ASCII character
+    vs = [b"Examples of an overlong ASCII character", []]
+    vs[1].append((False, b'\xc0\xaf'))
+    vs[1].append((False, b'\xe0\x80\xaf'))
+    vs[1].append((False, b'\xf0\x80\x80\xaf'))
+    vs[1].append((False, b'\xf8\x80\x80\x80\xaf'))
+    vs[1].append((False, b'\xfc\x80\x80\x80\x80\xaf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 4.2  Maximum overlong sequences
+    vs = [b"Maximum overlong sequences", []]
+    vs[1].append((False, b'\xc1\xbf'))
+    vs[1].append((False, b'\xe0\x9f\xbf'))
+    vs[1].append((False, b'\xf0\x8f\xbf\xbf'))
+    vs[1].append((False, b'\xf8\x87\xbf\xbf\xbf'))
+    vs[1].append((False, b'\xfc\x83\xbf\xbf\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 4.3  Overlong representation of the NUL character
+    vs = [b"Overlong representation of the NUL character", []]
+    vs[1].append((False, b'\xc0\x80'))
+    vs[1].append((False, b'\xe0\x80\x80'))
+    vs[1].append((False, b'\xf0\x80\x80\x80'))
+    vs[1].append((False, b'\xf8\x80\x80\x80\x80'))
+    vs[1].append((False, b'\xfc\x80\x80\x80\x80\x80'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 5.1 Single UTF-16 surrogates
+    vs = [b"Single UTF-16 surrogates", []]
+    vs[1].append((False, b'\xed\xa0\x80'))
+    vs[1].append((False, b'\xed\xad\xbf'))
+    vs[1].append((False, b'\xed\xae\x80'))
+    vs[1].append((False, b'\xed\xaf\xbf'))
+    vs[1].append((False, b'\xed\xb0\x80'))
+    vs[1].append((False, b'\xed\xbe\x80'))
+    vs[1].append((False, b'\xed\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 5.2 Paired UTF-16 surrogates
+    vs = [b"Paired UTF-16 surrogates", []]
+    vs[1].append((False, b'\xed\xa0\x80\xed\xb0\x80'))
+    vs[1].append((False, b'\xed\xa0\x80\xed\xbf\xbf'))
+    vs[1].append((False, b'\xed\xad\xbf\xed\xb0\x80'))
+    vs[1].append((False, b'\xed\xad\xbf\xed\xbf\xbf'))
+    vs[1].append((False, b'\xed\xae\x80\xed\xb0\x80'))
+    vs[1].append((False, b'\xed\xae\x80\xed\xbf\xbf'))
+    vs[1].append((False, b'\xed\xaf\xbf\xed\xb0\x80'))
+    vs[1].append((False, b'\xed\xaf\xbf\xed\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # 5.3 Other illegal code positions
+    # Those are non-character code points and valid UTF-8 by RFC 3629
+    vs = [b"Non-character code points (valid UTF-8)", []]
+    # https://bug686312.bugzilla.mozilla.org/attachment.cgi?id=561257
+    # non-characters: EF BF [BE-BF]
+    vs[1].append((True, b'\xef\xbf\xbe'))
+    vs[1].append((True, b'\xef\xbf\xbf'))
+    # non-characters: F[0-7] [89AB]F BF [BE-BF]
+    for z1 in [b'\xf0', b'\xf1', b'\xf2', b'\xf3', b'\xf4']:
+        for z2 in [b'\x8f', b'\x9f', b'\xaf', b'\xbf']:
+            # those encode codepoints >U+10FFFF
+            if not (z1 == b'\xf4' and z2 != b'\x8f'):
+                for z3 in [b'\xbe', b'\xbf']:
+                    zz = z1 + z2 + b'\xbf' + z3
+                    if zz not in [b'\xf0\x8f\xbf\xbe',
+                                  b'\xf0\x8f\xbf\xbf']:  # filter overlong sequences
+                        vs[1].append((True, zz))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    # Unicode "specials", such as replacement char etc
+    # http://en.wikipedia.org/wiki/Specials_%28Unicode_block%29
+    vs = [b"Unicode specials (i.e. replacement char)", []]
+    vs[1].append((True, b'\xef\xbf\xb9'))
+    vs[1].append((True, b'\xef\xbf\xba'))
+    vs[1].append((True, b'\xef\xbf\xbb'))
+    vs[1].append((True, b'\xef\xbf\xbc'))
+    vs[1].append((True, b'\xef\xbf\xbd'))  # replacement char
+    vs[1].append((True, b'\xef\xbf\xbe'))
+    vs[1].append((True, b'\xef\xbf\xbf'))
+    UTF8_TEST_SEQUENCES.append(vs)
+
+    return UTF8_TEST_SEQUENCES
+
+
+def _create_valid_utf8_test_sequences():
+    """
+    Generate some exotic, but valid UTF8 test strings.
+    """
+    VALID_UTF8_TEST_SEQUENCES = []
+    for test in _create_utf8_test_sequences():
+        valids = [x[1] for x in test[1] if x[0]]
+        if len(valids) > 0:
+            VALID_UTF8_TEST_SEQUENCES.append([test[0], valids])
+    return VALID_UTF8_TEST_SEQUENCES
+
+
+@unittest.skipIf(not HAS_NVX, 'NVX native extensions not present')
+class TestNvxUtf8Validator(unittest.TestCase):
+
+    def setUp(self):
+        # These tests verify the UTF-8 decoder/validator on the various test cases from
+        # http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
+        vs = []
+        for k in _create_utf8_test_sequences():
+            vs.extend(k[1])
+
+        # All Unicode code points
+        for i in range(
+                0, 0xffff):  # should by 0x10ffff, but non-wide Python build is limited to 16-bits
+            if i < 0xD800 or i > 0xDFFF:  # filter surrogate code points, which are disallowed to encode in UTF-8
+                vs.append((True, six.unichr(i).encode("utf-8")))
+
+        # FIXME: UnicodeEncodeError: 'utf-8' codec can't encode character '\ud800'
+        #        in position 0: surrogates not allowed
+        if False:
+            # 5.1 Single UTF-16 surrogates
+            for i in range(0xD800, 0xDBFF):  # high-surrogate
+                ss = six.unichr(i).encode("utf-8")
+                vs.append((False, ss))
+            for i in range(0xDC00, 0xDFFF):  # low-surrogate
+                ss = six.unichr(i).encode("utf-8")
+                vs.append((False, ss))
+
+            # 5.2 Paired UTF-16 surrogates
+            for i in range(0xD800, 0xDBFF):  # high-surrogate
+                for j in range(0xDC00, 0xDFFF):  # low-surrogate
+                    ss1 = six.unichr(i).encode("utf-8")
+                    ss2 = six.unichr(j).encode("utf-8")
+                    vs.append((False, ss1 + ss2))
+                    vs.append((False, ss2 + ss1))
+
+        self._TEST_SEQUENCES = vs
+
+    def test_standard_utf8validator(self):
+        """
+        Test standard implementation of UTF8 validator.
+        """
+        validator = StandardUtf8Validator()
+        return self._test_utf8(validator)
+
+    def test_nvx_utf8validator(self):
+        """
+        Test NVX implementation of UTF8 validator.
+        """
+        validator = NvxUtf8Validator()
+        return self._test_utf8(validator)
+
+    def test_standard_utf8validator_incremental(self):
+        """
+        Test standard implementation of UTF8 validator in incremental mode.
+        """
+        validator = StandardUtf8Validator()
+        return self._test_utf8_incremental(validator)
+
+    # NVX UTF8 validator lack incremental mode implementation
+    @unittest.expectedFailure
+    def test_nvx_utf8validator_incremental(self):
+        """
+        Test NVX implementation of UTF8 validator in incremental mode.
+        """
+        validator = NvxUtf8Validator()
+        return self._test_utf8_incremental(validator)
+
+    def _test_utf8(self, validator):
+        for s in self._TEST_SEQUENCES:
+            validator.reset()
+            r = validator.validate(s[1])
+
+            # no UTF-8 decode error _and_ everything consumed
+            res = r[0] and r[1]
+
+            self.assertEqual(res, s[0])
+
+    def _test_utf8_incremental(self, validator, withPositions=True):
+        # These tests verify that the UTF-8 decoder/validator can operate incrementally.
+        if withPositions:
+            # testing validator 4 on incremental detection with positions
+            k = 4
+        else:
+            # testing validator 2 on incremental detection without positions
+            k = 2
+
+        validator.reset()
+        self.assertEqual((True, True, 15, 15)[:k], validator.validate(u'µ@ßöäüàá'.encode('utf8'))[:k])
+
+        validator.reset()
+        self.assertEqual((False, False, 0, 0)[:k], validator.validate(b"\xF5")[:k])
+
+        # the following 3 all fail on eating byte 7 (0xA0)
+        validator.reset()
+        self.assertEqual((True, True, 6, 6)[:k], validator.validate(b"\x65\x64\x69\x74\x65\x64")[:k])
+        self.assertEqual((False, False, 1, 7)[:k], validator.validate(b"\xED\xA0\x80")[:k])
+
+        validator.reset()
+        self.assertEqual((True, True, 4, 4)[:k], validator.validate(b"\x65\x64\x69\x74")[:k])
+        self.assertEqual((False, False, 3, 7)[:k], validator.validate(b"\x65\x64\xED\xA0\x80")[:k])
+
+        validator.reset()
+        self.assertEqual((True, False, 7, 7)[:k], validator.validate(b"\x65\x64\x69\x74\x65\x64\xED")[:k])
+        self.assertEqual((False, False, 0, 7)[:k], validator.validate(b"\xA0\x80")[:k])

venv/lib/python3.7/site-packages/autobahn/rawsocket/test/test_rawsocket_url.py

@@ -0,0 +1,126 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import unittest
+
+from autobahn.rawsocket.util import create_url, parse_url
+
+
+class TestCreateRsUrl(unittest.TestCase):
+
+    def test_create_url01(self):
+        self.assertEqual(create_url("localhost"), "rs://localhost:80")
+
+    def test_create_url02(self):
+        self.assertEqual(create_url("localhost", port=8090), "rs://localhost:8090")
+
+    def test_create_url03(self):
+        self.assertEqual(create_url("localhost", isSecure=True), "rss://localhost:443")
+
+    def test_create_url04(self):
+        self.assertEqual(create_url("localhost", isSecure=True, port=443), "rss://localhost:443")
+
+    def test_create_url05(self):
+        self.assertEqual(create_url("localhost", isSecure=True, port=80), "rss://localhost:80")
+
+    def test_create_url06(self):
+        self.assertEqual(create_url("unix", port="file.sock"), "rs://unix:file.sock")
+
+    def test_create_url07(self):
+        self.assertEqual(create_url("unix", port="/tmp/file.sock"), "rs://unix:/tmp/file.sock")
+
+    def test_create_url08(self):
+        self.assertEqual(create_url("unix", port="../file.sock"), "rs://unix:../file.sock")
+
+    def test_create_url09(self):
+        self.assertEqual(create_url("unix", isSecure=True, port="file.sock"), "rss://unix:file.sock")
+
+    def test_create_url10(self):
+        self.assertEqual(create_url("unix", isSecure=True, port="/tmp/file.sock"), "rss://unix:/tmp/file.sock")
+
+    def test_create_url11(self):
+        self.assertEqual(create_url("unix", isSecure=True, port="../file.sock"), "rss://unix:../file.sock")
+
+
+class TestParseWsUrl(unittest.TestCase):
+
+    # parse_url -> (isSecure, host, port)
+
+    def test_parse_url01(self):
+        self.assertEqual(parse_url("rs://localhost"), (False, 'localhost', 80))
+
+    def test_parse_url02(self):
+        self.assertEqual(parse_url("rss://localhost"), (True, 'localhost', 443))
+
+    def test_parse_url03(self):
+        self.assertEqual(parse_url("rs://localhost:9000"), (False, 'localhost', 9000))
+
+    def test_parse_url04(self):
+        self.assertEqual(parse_url("rss://localhost:9000"), (True, 'localhost', 9000))
+
+    def test_parse_url05(self):
+        self.assertRaises(Exception, parse_url, "ws://localhost")
+
+    def test_parse_url06(self):
+        self.assertRaises(Exception, parse_url, "wss://localhost")
+
+    def test_parse_url07(self):
+        self.assertRaises(Exception, parse_url, "ws://localhost:80")
+
+    def test_parse_url08(self):
+        self.assertRaises(Exception, parse_url, "rs://localhost/somepath")
+
+    def test_parse_url09(self):
+        self.assertRaises(Exception, parse_url, "rs://localhost#somefrag")
+
+    def test_parse_url10(self):
+        self.assertRaises(Exception, parse_url, "rs://localhost?foo=bar")
+
+    def test_parse_url11(self):
+        self.assertRaises(Exception, parse_url, "rss://")
+
+    def test_parse_url12(self):
+        self.assertRaises(Exception, parse_url, "rs://")
+
+    def test_parse_url13(self):
+        self.assertEqual(parse_url("rs://unix:file.sock"), (False, 'unix', 'file.sock'))
+
+    def test_parse_url14(self):
+        self.assertEqual(parse_url("rs://unix:/tmp/file.sock"), (False, 'unix', '/tmp/file.sock'))
+
+    def test_parse_url15(self):
+        self.assertEqual(parse_url("rs://unix:../file.sock"), (False, 'unix', '../file.sock'))
+
+    def test_parse_url16(self):
+        self.assertEqual(parse_url("rss://unix:file.sock"), (True, 'unix', 'file.sock'))
+
+    def test_parse_url17(self):
+        self.assertEqual(parse_url("rss://unix:/tmp/file.sock"), (True, 'unix', '/tmp/file.sock'))
+
+    def test_parse_url18(self):
+        self.assertEqual(parse_url("rss://unix:../file.sock"), (True, 'unix', '../file.sock'))

venv/lib/python3.7/site-packages/autobahn/test/test_rng.py

@@ -0,0 +1,111 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import sys
+import unittest
+
+import uuid
+import random
+from nacl import utils, public
+
+from autobahn import util
+
+
+@unittest.skipIf(not sys.platform.startswith('linux'), 'entropy depletion tests only available on Linux')
+class TestEntropy(unittest.TestCase):
+
+    def test_non_depleting(self):
+        res = {}
+
+        with open('/dev/urandom', 'rb') as rng:
+            for i in range(1000):
+                for j in range(100):
+
+                    # "reseed" (seems pointless, but ..)
+                    random.seed()
+
+                    # random UUIDs
+                    v1 = uuid.uuid4()  # noqa
+
+                    # stdlib random
+                    v2 = random.random()  # noqa
+                    v3 = random.getrandbits(32)  # noqa
+                    v4 = random.randint(0, 9007199254740992)  # noqa
+                    v5 = random.normalvariate(10, 100)  # noqa
+                    v6 = random.choice(range(100))  # noqa
+
+                    # PyNaCl
+                    v7 = utils.random(public.Box.NONCE_SIZE)  # noqa
+
+                    # Autobahn utils
+                    v8 = util.generate_token(4, 4)  # noqa
+                    v9 = util.id()  # noqa
+                    v10 = util.rid()  # noqa
+                    v11 = util.newid()  # noqa
+
+                # direct procfs access to PRNG
+                d = rng.read(1000)  # noqa
+
+                # check available entropy
+                with open('/proc/sys/kernel/random/entropy_avail', 'r') as ent:
+                    ea = int(ent.read()) // 100
+                    if ea not in res:
+                        res[ea] = 0
+                    res[ea] += 1
+
+        skeys = sorted(res.keys())
+
+        print('\nsystem entropy depletion stats:')
+        for k in skeys:
+            print('{}: {}'.format(k, res[k]))
+
+        self.assertTrue(skeys[0] > 10)
+
+    def test_depleting(self):
+        res = {}
+
+        with open('/dev/random', 'rb') as rng:
+            for i in range(10000):
+
+                # direct procfs access to "real" RNG
+                d = rng.read(1000)  # noqa
+
+                # check available entropy
+                with open('/proc/sys/kernel/random/entropy_avail', 'r') as ent:
+                    ea = int(ent.read()) // 100
+                    if ea not in res:
+                        res[ea] = 0
+                    res[ea] += 1
+
+        skeys = sorted(res.keys())
+
+        print('\nsystem entropy depletion stats:')
+        for k in skeys:
+            print('{}: {}'.format(k, res[k]))
+
+        self.assertTrue(skeys[0] == 0)

venv/lib/python3.7/site-packages/autobahn/test/test_util.py

@@ -0,0 +1,48 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import unittest
+
+from autobahn.util import IdGenerator
+
+
+class TestIdGenerator(unittest.TestCase):
+    def test_idgenerator_is_generator(self):
+        "IdGenerator follows the generator protocol"
+        g = IdGenerator()
+        self.assertEqual(1, next(g))
+        self.assertEqual(2, next(g))
+
+    def test_generator_wrap(self):
+        g = IdGenerator()
+        g._next = 2 ** 53 - 1  # cheat a little
+
+        v = next(g)
+        self.assertEqual(v, 2 ** 53)
+        v = next(g)
+        self.assertEqual(v, 1)

venv/lib/python3.7/site-packages/autobahn/twisted/__init__.py

@@ -0,0 +1,89 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+
+from __future__ import absolute_import
+
+import sys
+import platform
+
+import twisted
+
+import autobahn
+
+# Twisted specific utilities (these should really be in Twisted, but
+# they aren't, and we use these in example code, so it must be part of
+# the public API)
+from autobahn.twisted.util import sleep
+from autobahn.twisted.choosereactor import install_reactor
+
+# WebSocket protocol support
+from autobahn.twisted.websocket import \
+    WebSocketServerProtocol, \
+    WebSocketClientProtocol, \
+    WebSocketServerFactory, \
+    WebSocketClientFactory
+
+# support for running Twisted stream protocols over WebSocket
+from autobahn.twisted.websocket import WrappingWebSocketServerFactory, \
+    WrappingWebSocketClientFactory
+
+# Twisted Web support - FIXME: these imports trigger import of Twisted reactor!
+# from autobahn.twisted.resource import WebSocketResource, WSGIRootResource
+
+# WAMP support
+from autobahn.twisted.wamp import ApplicationSession
+
+
+__all__ = (
+    # this should really be in Twisted
+    'sleep',
+    'install_reactor',
+
+    # WebSocket
+    'WebSocketServerProtocol',
+    'WebSocketClientProtocol',
+    'WebSocketServerFactory',
+    'WebSocketClientFactory',
+
+    # wrapping stream protocols in WebSocket
+    'WrappingWebSocketServerFactory',
+    'WrappingWebSocketClientFactory',
+
+    # Twisted Web - FIXME: see comment for import above
+    # 'WebSocketResource',
+
+    # this should really be in Twisted - FIXME: see comment for import above
+    # 'WSGIRootResource',
+
+    # WAMP support
+    'ApplicationSession',
+)
+
+__ident__ = u'Autobahn/{}-Twisted/{}-{}/{}'.format(autobahn.__version__, twisted.__version__, platform.python_implementation(), '.'.join([str(x) for x in list(sys.version_info[:3])]))
+"""
+AutobahnPython library implementation (eg. "Autobahn/0.13.0-Twisted/15.5.0-CPython/3.5.1")
+"""

venv/lib/python3.7/site-packages/autobahn/util.py

@@ -0,0 +1,870 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", fWITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import os
+import time
+import struct
+import sys
+import re
+import base64
+import math
+import random
+import binascii
+from datetime import datetime, timedelta
+from pprint import pformat
+from array import array
+
+import six
+
+import txaio
+
+try:
+    _TLS = True
+    from OpenSSL import SSL
+except ImportError:
+    _TLS = False
+
+
+__all__ = ("public",
+           "encode_truncate",
+           "xor",
+           "utcnow",
+           "utcstr",
+           "id",
+           "rid",
+           "newid",
+           "rtime",
+           "Stopwatch",
+           "Tracker",
+           "EqualityMixin",
+           "ObservableMixin",
+           "IdGenerator",
+           "generate_token",
+           "generate_activation_code",
+           "generate_serial_number",
+           "generate_user_password")
+
+
+def public(obj):
+    """
+    The public user API of Autobahn is marked using this decorator.
+    Everything that is not decorated @public is library internal, can
+    change at any time and should not be used in user program code.
+    """
+    try:
+        obj._is_public = True
+    except AttributeError:
+        # FIXME: exceptions.AttributeError: 'staticmethod' object has no attribute '_is_public'
+        pass
+    return obj
+
+
+@public
+def encode_truncate(text, limit, encoding='utf8', return_encoded=True):
+    """
+    Given a string, return a truncated version of the string such that
+    the UTF8 encoding of the string is smaller than the given limit.
+
+    This function correctly truncates even in the presence of Unicode code
+    points that encode to multi-byte encodings which must not be truncated
+    in the middle.
+
+    :param text: The (Unicode) string to truncate.
+    :type text: str
+    :param limit: The number of bytes to limit the UTF8 encoding to.
+    :type limit: int
+    :param encoding: Truncate the string in this encoding (default is ``utf-8``).
+    :type encoding: str
+    :param return_encoded: If ``True``, return the string encoded into bytes
+        according to the specified encoding, else return the string as a string.
+    :type return_encoded: bool
+
+    :returns: The truncated string.
+    :rtype: str or bytes
+    """
+    assert(text is None or type(text) == six.text_type)
+    assert(type(limit) in six.integer_types)
+    assert(limit >= 0)
+
+    if text is None:
+        return
+
+    # encode the given string in the specified encoding
+    s = text.encode(encoding)
+
+    # when the resulting byte string is longer than the given limit ..
+    if len(s) > limit:
+        # .. truncate, and
+        s = s[:limit]
+
+        # decode back, ignoring errors that result from truncation
+        # in the middle of multi-byte encodings
+        text = s.decode(encoding, 'ignore')
+
+        if return_encoded:
+            s = text.encode(encoding)
+
+    if return_encoded:
+        return s
+    else:
+        return text
+
+
+@public
+def xor(d1, d2):
+    """
+    XOR two binary strings of arbitrary (equal) length.
+
+    :param d1: The first binary string.
+    :type d1: binary
+    :param d2: The second binary string.
+    :type d2: binary
+
+    :returns: XOR of the binary strings (``XOR(d1, d2)``)
+    :rtype: bytes
+    """
+    if type(d1) != six.binary_type:
+        raise Exception("invalid type {} for d1 - must be binary".format(type(d1)))
+    if type(d2) != six.binary_type:
+        raise Exception("invalid type {} for d2 - must be binary".format(type(d2)))
+    if len(d1) != len(d2):
+        raise Exception("cannot XOR binary string of differing length ({} != {})".format(len(d1), len(d2)))
+
+    d1 = array('B', d1)
+    d2 = array('B', d2)
+
+    for i in range(len(d1)):
+        d1[i] ^= d2[i]
+
+    if six.PY3:
+        return d1.tobytes()
+    else:
+        return d1.tostring()
+
+
+@public
+def utcstr(ts=None):
+    """
+    Format UTC timestamp in ISO 8601 format.
+
+    Note: to parse an ISO 8601 formatted string, use the **iso8601**
+    module instead (e.g. ``iso8601.parse_date("2014-05-23T13:03:44.123Z")``).
+
+    :param ts: The timestamp to format.
+    :type ts: instance of :py:class:`datetime.datetime` or ``None``
+
+    :returns: Timestamp formatted in ISO 8601 format.
+    :rtype: str
+    """
+    assert(ts is None or isinstance(ts, datetime))
+    if ts is None:
+        ts = datetime.utcnow()
+    return u"{0}Z".format(ts.strftime(u"%Y-%m-%dT%H:%M:%S.%f")[:-3])
+
+
+@public
+def utcnow():
+    """
+    Get current time in UTC as ISO 8601 string.
+
+    :returns: Current time as string in ISO 8601 format.
+    :rtype: str
+    """
+    return utcstr()
+
+
+class IdGenerator(object):
+    """
+    ID generator for WAMP request IDs.
+
+    WAMP request IDs are sequential per WAMP session, starting at 1 and
+    wrapping around at 2**53 (both value are inclusive [1, 2**53]).
+
+    The upper bound **2**53** is chosen since it is the maximum integer that can be
+    represented as a IEEE double such that all smaller integers are representable as well.
+
+    Hence, IDs can be safely used with languages that use IEEE double as their
+    main (or only) number type (JavaScript, Lua, etc).
+
+    See https://github.com/wamp-proto/wamp-proto/blob/master/spec/basic.md#ids
+    """
+
+    def __init__(self):
+        self._next = 0  # starts at 1; next() pre-increments
+
+    def next(self):
+        """
+        Returns next ID.
+
+        :returns: The next ID.
+        :rtype: int
+        """
+        self._next += 1
+        if self._next > 9007199254740992:
+            self._next = 1
+        return self._next
+
+    # generator protocol
+    def __next__(self):
+        return self.next()
+
+
+#
+# Performance comparison of IdGenerator.next(), id() and rid().
+#
+# All tests were performed on:
+#
+#   - Ubuntu 14.04 LTS x86-64
+#   - Intel Core i7 920 @ 3.3GHz
+#
+# The tests generated 100 mio. IDs and run-time was measured
+# as wallclock from Unix "time" command. In each run, a single CPU
+# core was essentially at 100% load all the time (though the sys/usr
+# ratio was different).
+#
+# PyPy 2.6.1:
+#
+#   IdGenerator.next()    0.5s
+#   id()                 29.4s
+#   rid()               106.1s
+#
+# CPython 2.7.10:
+#
+#   IdGenerator.next()   49.0s
+#   id()                370.5s
+#   rid()               196.4s
+#
+
+#
+# Note on the ID range [0, 2**53]. We once reduced the range to [0, 2**31].
+# This lead to extremely hard to track down issues due to ID collisions!
+# Here: https://github.com/crossbario/autobahn-python/issues/419#issue-90483337
+#
+
+
+# 8 byte mask with 53 LSBs set (WAMP requires IDs from [0, 2**53]
+_WAMP_ID_MASK = struct.unpack(">Q", b"\x00\x1f\xff\xff\xff\xff\xff\xff")[0]
+
+
+def rid():
+    """
+    Generate a new random integer ID from range **[0, 2**53]**.
+
+    The generated ID is uniformly distributed over the whole range, doesn't have
+    a period (no pseudo-random generator is used) and cryptographically strong.
+
+    The upper bound **2**53** is chosen since it is the maximum integer that can be
+    represented as a IEEE double such that all smaller integers are representable as well.
+
+    Hence, IDs can be safely used with languages that use IEEE double as their
+    main (or only) number type (JavaScript, Lua, etc).
+
+    :returns: A random integer ID.
+    :rtype: int
+    """
+    return struct.unpack("@Q", os.urandom(8))[0] & _WAMP_ID_MASK
+
+
+# noinspection PyShadowingBuiltins
+def id():
+    """
+    Generate a new random integer ID from range **[0, 2**53]**.
+
+    The generated ID is based on a pseudo-random number generator (Mersenne Twister,
+    which has a period of 2**19937-1). It is NOT cryptographically strong, and
+    hence NOT suitable to generate e.g. secret keys or access tokens.
+
+    The upper bound **2**53** is chosen since it is the maximum integer that can be
+    represented as a IEEE double such that all smaller integers are representable as well.
+
+    Hence, IDs can be safely used with languages that use IEEE double as their
+    main (or only) number type (JavaScript, Lua, etc).
+
+    :returns: A random integer ID.
+    :rtype: int
+    """
+    return random.randint(0, 9007199254740992)
+
+
+def newid(length=16):
+    """
+    Generate a new random string ID.
+
+    The generated ID is uniformly distributed and cryptographically strong. It is
+    hence usable for things like secret keys and access tokens.
+
+    :param length: The length (in chars) of the ID to generate.
+    :type length: int
+
+    :returns: A random string ID.
+    :rtype: str
+    """
+    l = int(math.ceil(float(length) * 6. / 8.))
+    return base64.b64encode(os.urandom(l))[:length].decode('ascii')
+
+
+# a standard base36 character set
+# DEFAULT_TOKEN_CHARS = string.digits + string.ascii_uppercase
+
+# we take out the following 9 chars (leaving 27), because there
+# is visual ambiguity: 0/O/D, 1/I, 8/B, 2/Z
+DEFAULT_TOKEN_CHARS = u'345679ACEFGHJKLMNPQRSTUVWXY'
+"""
+Default set of characters to create rtokens from.
+"""
+
+DEFAULT_ZBASE32_CHARS = u'13456789abcdefghijkmnopqrstuwxyz'
+"""
+Our choice of confusing characters to eliminate is: `0', `l', `v', and `2'.  Our
+reasoning is that `0' is potentially mistaken for `o', that `l' is potentially
+mistaken for `1' or `i', that `v' is potentially mistaken for `u' or `r'
+(especially in handwriting) and that `2' is potentially mistaken for `z'
+(especially in handwriting).
+
+Note that we choose to focus on typed and written transcription more than on
+vocal, since humans already have a well-established system of disambiguating
+spoken alphanumerics, such as the United States military's "Alpha Bravo Charlie
+Delta" and telephone operators' "Is that 'd' as in 'dog'?".
+
+* http://philzimmermann.com/docs/human-oriented-base-32-encoding.txt
+"""
+
+
+@public
+def generate_token(char_groups, chars_per_group, chars=None, sep=None, lower_case=False):
+    """
+    Generate cryptographically strong tokens, which are strings like `M6X5-YO5W-T5IK`.
+    These can be used e.g. for used-only-once activation tokens or the like.
+
+    The returned token has an entropy of
+    ``math.log(len(chars), 2.) * chars_per_group * char_groups``
+    bits.
+
+    With the default charset and 4 characters per group, ``generate_token()`` produces
+    strings with the following entropy:
+
+    ================   ===================  ========================================
+    character groups    entropy (at least)  recommended use
+    ================   ===================  ========================================
+    2                    38 bits
+    3                    57 bits            one-time activation or pairing code
+    4                    76 bits            secure user password
+    5                    95 bits
+    6                   114 bits            globally unique serial / product code
+    7                   133 bits
+    ================   ===================  ========================================
+
+    Here are some examples:
+
+    * token(3): ``9QXT-UXJW-7R4H``
+    * token(4): ``LPNN-JMET-KWEP-YK45``
+    * token(6): ``NXW9-74LU-6NUH-VLPV-X6AG-QUE3``
+
+    :param char_groups: Number of character groups (or characters if chars_per_group == 1).
+    :type char_groups: int
+
+    :param chars_per_group: Number of characters per character group (or 1 to return a token with no grouping).
+    :type chars_per_group: int
+
+    :param chars: Characters to choose from. Default is 27 character subset
+        of the ISO basic Latin alphabet (see: ``DEFAULT_TOKEN_CHARS``).
+    :type chars: str or None
+
+    :param sep: When separating groups in the token, the separater string.
+    :type sep: str
+
+    :param lower_case: If ``True``, generate token in lower-case.
+    :type lower_case: bool
+
+    :returns: The generated token.
+    :rtype: str
+    """
+    assert(type(char_groups) in six.integer_types)
+    assert(type(chars_per_group) in six.integer_types)
+    assert(chars is None or type(chars) == six.text_type)
+    chars = chars or DEFAULT_TOKEN_CHARS
+    if lower_case:
+        chars = chars.lower()
+    sep = sep or u'-'
+    rng = random.SystemRandom()
+    token_value = u''.join(rng.choice(chars) for _ in range(char_groups * chars_per_group))
+    if chars_per_group > 1:
+        return sep.join(map(u''.join, zip(*[iter(token_value)] * chars_per_group)))
+    else:
+        return token_value
+
+
+@public
+def generate_activation_code():
+    """
+    Generate a one-time activation code or token of the form ``u'W97F-96MJ-YGJL'``.
+    The generated value is cryptographically strong and has (at least) 57 bits of entropy.
+
+    :returns: The generated activation code.
+    :rtype: str
+    """
+    return generate_token(char_groups=3, chars_per_group=4, chars=DEFAULT_TOKEN_CHARS, sep=u'-', lower_case=False)
+
+
+@public
+def generate_user_password():
+    """
+    Generate a secure, random user password of the form ``u'kgojzi61dn5dtb6d'``.
+    The generated value is cryptographically strong and has (at least) 76 bits of entropy.
+
+    :returns: The generated password.
+    :rtype: str
+    """
+    return generate_token(char_groups=16, chars_per_group=1, chars=DEFAULT_ZBASE32_CHARS, sep=u'-', lower_case=True)
+
+
+@public
+def generate_serial_number():
+    """
+    Generate a globally unique serial / product code of the form ``u'YRAC-EL4X-FQQE-AW4T-WNUV-VN6T'``.
+    The generated value is cryptographically strong and has (at least) 114 bits of entropy.
+
+    :returns: The generated serial number / product code.
+    :rtype: str
+    """
+    return generate_token(char_groups=6, chars_per_group=4, chars=DEFAULT_TOKEN_CHARS, sep=u'-', lower_case=False)
+
+
+# Select the most precise walltime measurement function available
+# on the platform
+#
+if sys.platform.startswith('win'):
+    # On Windows, this function returns wall-clock seconds elapsed since the
+    # first call to this function, as a floating point number, based on the
+    # Win32 function QueryPerformanceCounter(). The resolution is typically
+    # better than one microsecond
+    if sys.version_info >= (3, 8):
+        _rtime = time.perf_counter
+    else:
+        _rtime = time.clock
+    _ = _rtime()  # this starts wallclock
+else:
+    # On Unix-like platforms, this used the first available from this list:
+    # (1) gettimeofday() -- resolution in microseconds
+    # (2) ftime() -- resolution in milliseconds
+    # (3) time() -- resolution in seconds
+    _rtime = time.time
+
+
+@public
+def rtime():
+    """
+    Precise, fast wallclock time.
+
+    :returns: The current wallclock in seconds. Returned values are only guaranteed
+       to be meaningful relative to each other.
+    :rtype: float
+    """
+    return _rtime()
+
+
+class Stopwatch(object):
+    """
+    Stopwatch based on walltime.
+
+    This can be used to do code timing and uses the most precise walltime measurement
+    available on the platform. This is a very light-weight object,
+    so create/dispose is very cheap.
+    """
+
+    def __init__(self, start=True):
+        """
+
+        :param start: If ``True``, immediately start the stopwatch.
+        :type start: bool
+        """
+        self._elapsed = 0
+        if start:
+            self._started = rtime()
+            self._running = True
+        else:
+            self._started = None
+            self._running = False
+
+    def elapsed(self):
+        """
+        Return total time elapsed in seconds during which the stopwatch was running.
+
+        :returns: The elapsed time in seconds.
+        :rtype: float
+        """
+        if self._running:
+            now = rtime()
+            return self._elapsed + (now - self._started)
+        else:
+            return self._elapsed
+
+    def pause(self):
+        """
+        Pauses the stopwatch and returns total time elapsed in seconds during which
+        the stopwatch was running.
+
+        :returns: The elapsed time in seconds.
+        :rtype: float
+        """
+        if self._running:
+            now = rtime()
+            self._elapsed += now - self._started
+            self._running = False
+            return self._elapsed
+        else:
+            return self._elapsed
+
+    def resume(self):
+        """
+        Resumes a paused stopwatch and returns total elapsed time in seconds
+        during which the stopwatch was running.
+
+        :returns: The elapsed time in seconds.
+        :rtype: float
+        """
+        if not self._running:
+            self._started = rtime()
+            self._running = True
+            return self._elapsed
+        else:
+            now = rtime()
+            return self._elapsed + (now - self._started)
+
+    def stop(self):
+        """
+        Stops the stopwatch and returns total time elapsed in seconds during which
+        the stopwatch was (previously) running.
+
+        :returns: The elapsed time in seconds.
+        :rtype: float
+        """
+        elapsed = self.pause()
+        self._elapsed = 0
+        self._started = None
+        self._running = False
+        return elapsed
+
+
+class Tracker(object):
+    """
+    A key-based statistics tracker.
+    """
+
+    def __init__(self, tracker, tracked):
+        """
+        """
+        self.tracker = tracker
+        self.tracked = tracked
+        self._timings = {}
+        self._offset = rtime()
+        self._dt_offset = datetime.utcnow()
+
+    def track(self, key):
+        """
+        Track elapsed for key.
+
+        :param key: Key under which to track the timing.
+        :type key: str
+        """
+        self._timings[key] = rtime()
+
+    def diff(self, start_key, end_key, formatted=True):
+        """
+        Get elapsed difference between two previously tracked keys.
+
+        :param start_key: First key for interval (older timestamp).
+        :type start_key: str
+        :param end_key: Second key for interval (younger timestamp).
+        :type end_key: str
+        :param formatted: If ``True``, format computed time period and return string.
+        :type formatted: bool
+
+        :returns: Computed time period in seconds (or formatted string).
+        :rtype: float or str
+        """
+        if end_key in self._timings and start_key in self._timings:
+            d = self._timings[end_key] - self._timings[start_key]
+            if formatted:
+                if d < 0.00001:  # 10us
+                    s = "%d ns" % round(d * 1000000000.)
+                elif d < 0.01:  # 10ms
+                    s = "%d us" % round(d * 1000000.)
+                elif d < 10:  # 10s
+                    s = "%d ms" % round(d * 1000.)
+                else:
+                    s = "%d s" % round(d)
+                return s.rjust(8)
+            else:
+                return d
+        else:
+            if formatted:
+                return "n.a.".rjust(8)
+            else:
+                return None
+
+    def absolute(self, key):
+        """
+        Return the UTC wall-clock time at which a tracked event occurred.
+
+        :param key: The key
+        :type key: str
+
+        :returns: Timezone-naive datetime.
+        :rtype: instance of :py:class:`datetime.datetime`
+        """
+        elapsed = self[key]
+        if elapsed is None:
+            raise KeyError("No such key \"%s\"." % elapsed)
+        return self._dt_offset + timedelta(seconds=elapsed)
+
+    def __getitem__(self, key):
+        if key in self._timings:
+            return self._timings[key] - self._offset
+        else:
+            return None
+
+    def __iter__(self):
+        return self._timings.__iter__()
+
+    def __str__(self):
+        return pformat(self._timings)
+
+
+class EqualityMixin(object):
+    """
+    Mixing to add equality comparison operators to a class.
+
+    Two objects are identical under this mixin, if and only if:
+
+    1. both object have the same class
+    2. all non-private object attributes are equal
+    """
+
+    def __eq__(self, other):
+        """
+        Compare this object to another object for equality.
+
+        :param other: The other object to compare with.
+        :type other: obj
+
+        :returns: ``True`` iff the objects are equal.
+        :rtype: bool
+        """
+        if not isinstance(other, self.__class__):
+            return False
+        # we only want the actual message data attributes (not eg _serialize)
+        for k in self.__dict__:
+            if not k.startswith('_'):
+                if not self.__dict__[k] == other.__dict__[k]:
+                    return False
+        return True
+        # return (isinstance(other, self.__class__) and self.__dict__ == other.__dict__)
+
+    def __ne__(self, other):
+        """
+        Compare this object to another object for inequality.
+
+        :param other: The other object to compare with.
+        :type other: obj
+
+        :returns: ``True`` iff the objects are not equal.
+        :rtype: bool
+        """
+        return not self.__eq__(other)
+
+
+def wildcards2patterns(wildcards):
+    """
+    Compute a list of regular expression patterns from a list of
+    wildcard strings. A wildcard string uses '*' as a wildcard character
+    matching anything.
+
+    :param wildcards: List of wildcard strings to compute regular expression patterns for.
+    :type wildcards: list of str
+
+    :returns: Computed regular expressions.
+    :rtype: list of obj
+    """
+    # note that we add the ^ and $ so that the *entire* string must
+    # match. Without this, e.g. a prefix will match:
+    # re.match('.*good\\.com', 'good.com.evil.com')  # match!
+    # re.match('.*good\\.com$', 'good.com.evil.com') # no match!
+    return [re.compile('^' + wc.replace('.', r'\.').replace('*', '.*') + '$') for wc in wildcards]
+
+
+class ObservableMixin(object):
+    """
+    Internal utility for enabling event-listeners on particular objects
+    """
+
+    # A "helper" style composable class (as opposed to a mix-in) might
+    # be a lot easier to deal with here.  Having an __init__ method
+    # with a "mix in" style class can be fragile and error-prone,
+    # especially if it takes arguments. Since we don't use the
+    # "parent" beavior anywhere, I didn't add a .set_parent() (yet?)
+
+    # these are class-level globals; individual instances are
+    # initialized as-needed (e.g. the first .on() call adds a
+    # _listeners dict). Thus, subclasses don't have to call super()
+    # properly etc.
+    _parent = None
+    _valid_events = None
+    _listeners = None
+
+    def set_valid_events(self, valid_events=None):
+        """
+        :param valid_events: if non-None, .on() or .fire() with an event
+            not listed in valid_events raises an exception.
+        """
+        self._valid_events = list(valid_events)
+
+    def _check_event(self, event):
+        """
+        Internal helper. Throws RuntimeError if we have a valid_events
+        list, and the given event isnt' in it. Does nothing otherwise.
+        """
+        if self._valid_events and event not in self._valid_events:
+            raise RuntimeError(
+                "Invalid event '{event}'. Expected one of: {events}".format(
+                    event=event,
+                    events=', '.join(self._valid_events),
+                )
+            )
+
+    def on(self, event, handler):
+        """
+        Add a handler for an event.
+
+        :param event: the name of the event
+
+        :param handler: a callable thats invoked when .fire() is
+            called for this events. Arguments will be whatever are given
+            to .fire()
+        """
+        # print("adding '{}' to '{}': {}".format(event, hash(self), handler))
+        self._check_event(event)
+        if self._listeners is None:
+            self._listeners = dict()
+        if event not in self._listeners:
+            self._listeners[event] = []
+        self._listeners[event].append(handler)
+
+    def off(self, event=None, handler=None):
+        """
+        Stop listening for a single event, or all events.
+
+        :param event: if None, remove all listeners. Otherwise, remove
+            listeners for the single named event.
+
+        :param handler: if None, remove all handlers for the named
+            event; otherwise remove just the given handler.
+        """
+        if event is None:
+            if handler is not None:
+                # maybe this should mean "remove the given handler
+                # from any event at all that contains it"...?
+                raise RuntimeError(
+                    "Can't specificy a specific handler without an event"
+                )
+            self._listeners = dict()
+        else:
+            if self._listeners is None:
+                return
+            self._check_event(event)
+            if event in self._listeners:
+                if handler is None:
+                    del self._listeners[event]
+                else:
+                    self._listeners[event].discard(handler)
+
+    def fire(self, event, *args, **kwargs):
+        """
+        Fire a particular event.
+
+        :param event: the event to fire. All other args and kwargs are
+            passed on to the handler(s) for the event.
+
+        :return: a Deferred/Future gathering all async results from
+            all handlers and/or parent handlers.
+        """
+        # print("firing '{}' from '{}'".format(event, hash(self)))
+        if self._listeners is None:
+            return txaio.create_future(result=[])
+
+        self._check_event(event)
+        res = []
+        for handler in self._listeners.get(event, []):
+            future = txaio.as_future(handler, *args, **kwargs)
+            res.append(future)
+        if self._parent is not None:
+            res.append(self._parent.fire(event, *args, **kwargs))
+        return txaio.gather(res, consume_exceptions=False)
+
+
+class _LazyHexFormatter(object):
+    """
+    This is used to avoid calling binascii.hexlify() on data given to
+    log.debug() calls unless debug is active (for example). Like::
+
+        self.log.debug(
+            "Some data: {octets}",
+            octets=_LazyHexFormatter(os.urandom(32)),
+        )
+    """
+    __slots__ = ('obj',)
+
+    def __init__(self, obj):
+        self.obj = obj
+
+    def __str__(self):
+        return binascii.hexlify(self.obj).decode('ascii')
+
+
+def _is_tls_error(instance):
+    """
+    :returns: True if we have TLS support and 'instance' is an
+        instance of :class:`OpenSSL.SSL.Error` otherwise False
+    """
+    if _TLS:
+        return isinstance(instance, SSL.Error)
+    return False
+
+
+def _maybe_tls_reason(instance):
+    """
+    :returns: a TLS error-message, or empty-string if 'instance' is
+        not a TLS error.
+    """
+    if _is_tls_error(instance):
+        ssl_error = instance.args[0][0]
+        return u"SSL error: {msg} (in {func})".format(
+            func=ssl_error[1],
+            msg=ssl_error[2],
+        )
+    return u""

venv/lib/python3.7/site-packages/autobahn/wamp/__init__.py

@@ -0,0 +1,83 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+from autobahn.wamp.types import \
+    ComponentConfig, \
+    SessionDetails, \
+    CloseDetails, \
+    RegisterOptions, \
+    CallOptions, \
+    CallDetails, \
+    CallResult, \
+    SubscribeOptions, \
+    PublishOptions, \
+    EventDetails
+
+from autobahn.wamp.exception import \
+    Error, \
+    SessionNotReady, \
+    SerializationError, \
+    ProtocolError, \
+    TransportLost, \
+    ApplicationError, \
+    InvalidUri
+
+from autobahn.wamp.interfaces import ISession
+
+from autobahn.wamp.uri import \
+    error, \
+    register, \
+    subscribe
+
+
+__all__ = (
+    'ComponentConfig',
+    'SessionDetails',
+    'CloseDetails',
+    'RegisterOptions',
+    'CallOptions',
+    'CallDetails',
+    'CallResult',
+    'SubscribeOptions',
+    'PublishOptions',
+    'EventDetails',
+
+    'Error',
+    'SessionNotReady',
+    'SerializationError',
+    'ProtocolError',
+    'TransportLost',
+    'ApplicationError',
+    'InvalidUri',
+
+    'ISession',
+
+    'error',
+    'register',
+    'subscribe',
+)

venv/lib/python3.7/site-packages/autobahn/wamp/exception.py

@@ -0,0 +1,314 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import six
+
+from autobahn.util import public
+from autobahn.wamp.uri import error
+
+__all__ = (
+    'Error',
+    'SessionNotReady',
+    'SerializationError',
+    'ProtocolError',
+    'TransportLost',
+    'ApplicationError',
+    'NotAuthorized',
+    'InvalidUri',
+)
+
+
+@public
+class Error(RuntimeError):
+    """
+    Base class for all exceptions related to WAMP.
+    """
+
+
+@public
+class SessionNotReady(Error):
+    """
+    The application tried to perform a WAMP interaction, but the
+    session is not yet fully established.
+    """
+
+
+@public
+class SerializationError(Error):
+    """
+    Exception raised when the WAMP serializer could not serialize the
+    application payload (``args`` or ``kwargs`` for ``CALL``, ``PUBLISH``, etc).
+    """
+
+
+@public
+class InvalidUriError(Error):
+    """
+    Exception raised when an invalid WAMP URI was used.
+    """
+
+
+@public
+class ProtocolError(Error):
+    """
+    Exception raised when WAMP protocol was violated. Protocol errors
+    are fatal and are handled by the WAMP implementation. They are
+    not supposed to be handled at the application level.
+    """
+
+
+@public
+class TransportLost(Error):
+    """
+    Exception raised when the transport underlying the WAMP session
+    was lost or is not connected.
+    """
+
+
+@public
+class ApplicationError(Error):
+    """
+    Base class for all exceptions that can/may be handled
+    at the application level.
+    """
+
+    INVALID_URI = u"wamp.error.invalid_uri"
+    """
+    Peer provided an incorrect URI for a URI-based attribute of a WAMP message
+    such as a realm, topic or procedure.
+    """
+
+    INVALID_PAYLOAD = u"wamp.error.invalid_payload"
+    """
+    The application payload could not be serialized.
+    """
+
+    PAYLOAD_SIZE_EXCEEDED = u"wamp.error.payload_size_exceeded"
+    """
+    The application payload could not be transported becuase the serialized/framed payload
+    exceeds the transport limits.
+    """
+
+    NO_SUCH_PROCEDURE = u"wamp.error.no_such_procedure"
+    """
+    A Dealer could not perform a call, since not procedure is currently registered
+    under the given URI.
+    """
+
+    PROCEDURE_ALREADY_EXISTS = u"wamp.error.procedure_already_exists"
+    """
+    A procedure could not be registered, since a procedure with the given URI is
+    already registered.
+    """
+
+    PROCEDURE_EXISTS_INVOCATION_POLICY_CONFLICT = u"wamp.error.procedure_exists_with_different_invocation_policy"
+    """
+    A procedure could not be registered, since a procedure with the given URI is
+    already registered, and the registration has a conflicting invocation policy.
+    """
+
+    NO_SUCH_REGISTRATION = u"wamp.error.no_such_registration"
+    """
+    A Dealer could not perform a unregister, since the given registration is not active.
+    """
+
+    NO_SUCH_SUBSCRIPTION = u"wamp.error.no_such_subscription"
+    """
+    A Broker could not perform a unsubscribe, since the given subscription is not active.
+    """
+
+    NO_SUCH_SESSION = u"wamp.error.no_such_session"
+    """
+    A router could not perform an operation, since a session ID specified was non-existant.
+    """
+
+    INVALID_ARGUMENT = u"wamp.error.invalid_argument"
+    """
+    A call failed, since the given argument types or values are not acceptable to the
+    called procedure - in which case the *Callee* may throw this error. Or a Router
+    performing *payload validation* checked the payload (``args`` / ``kwargs``) of a call,
+    call result, call error or publish, and the payload did not conform.
+    """
+
+    # FIXME: this currently isn't used neither in Autobahn nor Crossbar. Check!
+    SYSTEM_SHUTDOWN = u"wamp.error.system_shutdown"
+    """
+    The *Peer* is shutting down completely - used as a ``GOODBYE`` (or ``ABORT``) reason.
+    """
+
+    # FIXME: this currently isn't used neither in Autobahn nor Crossbar. Check!
+    CLOSE_REALM = u"wamp.error.close_realm"
+    """
+    The *Peer* want to leave the realm - used as a ``GOODBYE`` reason.
+    """
+
+    # FIXME: this currently isn't used neither in Autobahn nor Crossbar. Check!
+    GOODBYE_AND_OUT = u"wamp.error.goodbye_and_out"
+    """
+    A *Peer* acknowledges ending of a session - used as a ``GOOBYE`` reply reason.
+    """
+
+    NOT_AUTHORIZED = u"wamp.error.not_authorized"
+    """
+    A call, register, publish or subscribe failed, since the session is not authorized
+    to perform the operation.
+    """
+
+    AUTHORIZATION_FAILED = u"wamp.error.authorization_failed"
+    """
+    A Dealer or Broker could not determine if the *Peer* is authorized to perform
+    a join, call, register, publish or subscribe, since the authorization operation
+    *itself* failed. E.g. a custom authorizer did run into an error.
+    """
+
+    AUTHENTICATION_FAILED = u"wamp.error.authentication_failed"
+    """
+    Something failed with the authentication itself, that is, authentication could
+    not run to end.
+    """
+
+    NO_AUTH_METHOD = u"wamp.error.no_auth_method"
+    """
+    No authentication method the peer offered is available or active.
+    """
+
+    NO_SUCH_REALM = u"wamp.error.no_such_realm"
+    """
+    Peer wanted to join a non-existing realm (and the *Router* did not allow to auto-create
+    the realm).
+    """
+
+    NO_SUCH_ROLE = u"wamp.error.no_such_role"
+    """
+    A *Peer* was to be authenticated under a Role that does not (or no longer) exists on the Router.
+    For example, the *Peer* was successfully authenticated, but the Role configured does not
+    exists - hence there is some misconfiguration in the Router.
+    """
+
+    NO_SUCH_PRINCIPAL = u"wamp.error.no_such_principal"
+    """
+    A *Peer* was authenticated for an authid that does not or longer exists.
+    """
+
+    CANCELED = u"wamp.error.canceled"
+    """
+    A Dealer or Callee canceled a call previously issued (WAMP AP).
+    """
+
+    TIMEOUT = u"wamp.error.timeout"
+    """
+    A pending (in-flight) call was timed out.
+    """
+
+    # FIXME: this currently isn't used neither in Autobahn nor Crossbar. Check!
+    NO_ELIGIBLE_CALLEE = u"wamp.error.no_eligible_callee"
+    """
+    A *Dealer* could not perform a call, since a procedure with the given URI is registered,
+    but *Callee Black- and Whitelisting* and/or *Caller Exclusion* lead to the
+    exclusion of (any) *Callee* providing the procedure (WAMP AP).
+    """
+
+    ENC_NO_PAYLOAD_CODEC = u"wamp.error.no_payload_codec"
+    """
+    WAMP message in payload transparency mode received, but no codec set
+    or codec did not decode the payload.
+    """
+
+    ENC_TRUSTED_URI_MISMATCH = u"wamp.error.encryption.trusted_uri_mismatch"
+    """
+    WAMP-cryptobox application payload end-to-end encryption error.
+    """
+
+    ENC_DECRYPT_ERROR = u"wamp.error.encryption.decrypt_error"
+    """
+    WAMP-cryptobox application payload end-to-end encryption error.
+    """
+
+    def __init__(self, error, *args, **kwargs):
+        """
+
+        :param error: The URI of the error that occurred, e.g. ``wamp.error.not_authorized``.
+        :type error: str
+        """
+        Exception.__init__(self, *args)
+        self.kwargs = kwargs
+        self.error = error
+        self.enc_algo = kwargs.pop('enc_algo', None)
+        self.callee = kwargs.pop('callee', None)
+        self.callee_authid = kwargs.pop('callee_authid', None)
+        self.callee_authrole = kwargs.pop('callee_authrole', None)
+        self.forward_for = kwargs.pop('forward_for', None)
+
+    @public
+    def error_message(self):
+        """
+        Get the error message of this exception.
+
+        :returns: The error message.
+        :rtype: str
+        """
+        return u'{0}: {1}'.format(
+            self.error,
+            u' '.join([six.text_type(a) for a in self.args]),
+        )
+
+    def __unicode__(self):
+        if self.kwargs and 'traceback' in self.kwargs:
+            tb = u':\n' + u'\n'.join(self.kwargs.pop('traceback')) + u'\n'
+            self.kwargs['traceback'] = u'...'
+        else:
+            tb = u''
+        return u"ApplicationError(error=<{0}>, args={1}, kwargs={2}, enc_algo={3}, callee={4}, callee_authid={5}, callee_authrole={6}, forward_for={7}){8}".format(
+            self.error, list(self.args), self.kwargs, self.enc_algo, self.callee, self.callee_authid, self.callee_authrole, self.forward_for, tb)
+
+    def __str__(self):
+        if six.PY3:
+            return self.__unicode__()
+        else:
+            return self.__unicode__().encode('utf8')
+
+
+@error(ApplicationError.NOT_AUTHORIZED)
+class NotAuthorized(Exception):
+    """
+    Not authorized to perform the respective action.
+    """
+
+
+@error(ApplicationError.INVALID_URI)
+class InvalidUri(Exception):
+    """
+    The URI for a topic, procedure or error is not a valid WAMP URI.
+    """
+
+
+@error(ApplicationError.INVALID_PAYLOAD)
+class InvalidPayload(Exception):
+    """
+    The URI for a topic, procedure or error is not a valid WAMP URI.
+    """

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/Map.py

@@ -0,0 +1,38 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: wamp
+
+import flatbuffers
+
+class Map(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsMap(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Map()
+        x.Init(buf, n + offset)
+        return x
+
+    # Map
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Map
+    def Key(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Map
+    def Value(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+def MapStart(builder): builder.StartObject(2)
+def MapAddKey(builder, key): builder.PrependUOffsetTRelativeSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(key), 0)
+def MapAddValue(builder, value): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(value), 0)
+def MapEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/Void.py

@@ -0,0 +1,22 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: wamp
+
+import flatbuffers
+
+class Void(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsVoid(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Void()
+        x.Init(buf, n + offset)
+        return x
+
+    # Void
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+def VoidStart(builder): builder.StartObject(0)
+def VoidEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/AuthFactor.py

@@ -0,0 +1,11 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class AuthFactor(object):
+    NONE = 0
+    AuthTicketRequest = 1
+    AuthCraRequest = 2
+    AuthScramRequest = 3
+    AuthCryptosignRequest = 4
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/AuthMode.py

@@ -0,0 +1,8 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class AuthMode(object):
+    FIRST = 0
+    MULTIFACTOR = 1
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/AuthTicketChallenge.py

@@ -0,0 +1,22 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class AuthTicketChallenge(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsAuthTicketChallenge(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = AuthTicketChallenge()
+        x.Init(buf, n + offset)
+        return x
+
+    # AuthTicketChallenge
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+def AuthTicketChallengeStart(builder): builder.StartObject(0)
+def AuthTicketChallengeEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/AuthTicketRequest.py

@@ -0,0 +1,22 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class AuthTicketRequest(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsAuthTicketRequest(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = AuthTicketRequest()
+        x.Init(buf, n + offset)
+        return x
+
+    # AuthTicketRequest
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+def AuthTicketRequestStart(builder): builder.StartObject(0)
+def AuthTicketRequestEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/CalleeFeatures.py

@@ -0,0 +1,102 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class CalleeFeatures(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsCalleeFeatures(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = CalleeFeatures()
+        x.Init(buf, n + offset)
+        return x
+
+    # CalleeFeatures
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # CalleeFeatures
+    def CallerIdentification(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def CallTrustlevels(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def CallTimeout(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def CallCanceling(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def ProgressiveCallResults(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def RegistrationRevocation(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def PatternBasedRegistration(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def SharedRegistration(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def PayloadTransparency(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(20))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CalleeFeatures
+    def PayloadEncryptionCryptobox(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(22))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+def CalleeFeaturesStart(builder): builder.StartObject(10)
+def CalleeFeaturesAddCallerIdentification(builder, callerIdentification): builder.PrependBoolSlot(0, callerIdentification, 0)
+def CalleeFeaturesAddCallTrustlevels(builder, callTrustlevels): builder.PrependBoolSlot(1, callTrustlevels, 0)
+def CalleeFeaturesAddCallTimeout(builder, callTimeout): builder.PrependBoolSlot(2, callTimeout, 0)
+def CalleeFeaturesAddCallCanceling(builder, callCanceling): builder.PrependBoolSlot(3, callCanceling, 0)
+def CalleeFeaturesAddProgressiveCallResults(builder, progressiveCallResults): builder.PrependBoolSlot(4, progressiveCallResults, 0)
+def CalleeFeaturesAddRegistrationRevocation(builder, registrationRevocation): builder.PrependBoolSlot(5, registrationRevocation, 0)
+def CalleeFeaturesAddPatternBasedRegistration(builder, patternBasedRegistration): builder.PrependBoolSlot(6, patternBasedRegistration, 0)
+def CalleeFeaturesAddSharedRegistration(builder, sharedRegistration): builder.PrependBoolSlot(7, sharedRegistration, 0)
+def CalleeFeaturesAddPayloadTransparency(builder, payloadTransparency): builder.PrependBoolSlot(8, payloadTransparency, 0)
+def CalleeFeaturesAddPayloadEncryptionCryptobox(builder, payloadEncryptionCryptobox): builder.PrependBoolSlot(9, payloadEncryptionCryptobox, 0)
+def CalleeFeaturesEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/CallerFeatures.py

@@ -0,0 +1,70 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class CallerFeatures(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsCallerFeatures(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = CallerFeatures()
+        x.Init(buf, n + offset)
+        return x
+
+    # CallerFeatures
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # CallerFeatures
+    def CallerIdentification(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CallerFeatures
+    def CallTimeout(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CallerFeatures
+    def CallCanceling(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CallerFeatures
+    def ProgressiveCallResults(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CallerFeatures
+    def PayloadTransparency(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # CallerFeatures
+    def PayloadEncryptionCryptobox(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+def CallerFeaturesStart(builder): builder.StartObject(6)
+def CallerFeaturesAddCallerIdentification(builder, callerIdentification): builder.PrependBoolSlot(0, callerIdentification, 0)
+def CallerFeaturesAddCallTimeout(builder, callTimeout): builder.PrependBoolSlot(1, callTimeout, 0)
+def CallerFeaturesAddCallCanceling(builder, callCanceling): builder.PrependBoolSlot(2, callCanceling, 0)
+def CallerFeaturesAddProgressiveCallResults(builder, progressiveCallResults): builder.PrependBoolSlot(3, progressiveCallResults, 0)
+def CallerFeaturesAddPayloadTransparency(builder, payloadTransparency): builder.PrependBoolSlot(4, payloadTransparency, 0)
+def CallerFeaturesAddPayloadEncryptionCryptobox(builder, payloadEncryptionCryptobox): builder.PrependBoolSlot(5, payloadEncryptionCryptobox, 0)
+def CallerFeaturesEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/CancelMode.py

@@ -0,0 +1,9 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class CancelMode(object):
+    SKIP = 0
+    ABORT = 1
+    KILL = 2
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Challenge.py

@@ -0,0 +1,42 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Challenge(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsChallenge(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Challenge()
+        x.Init(buf, n + offset)
+        return x
+
+    # Challenge
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Challenge
+    def Method(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Challenge
+    def Extra(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            x = self._tab.Indirect(o + self._tab.Pos)
+            from .Map import Map
+            obj = Map()
+            obj.Init(self._tab.Bytes, x)
+            return obj
+        return None
+
+def ChallengeStart(builder): builder.StartObject(2)
+def ChallengeAddMethod(builder, method): builder.PrependUint8Slot(0, method, 0)
+def ChallengeAddExtra(builder, extra): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(extra), 0)
+def ChallengeEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/ChannelBinding.py

@@ -0,0 +1,8 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class ChannelBinding(object):
+    NONE = 0
+    TLS_UNIQUE = 1
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/DealerFeatures.py

@@ -0,0 +1,126 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class DealerFeatures(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsDealerFeatures(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = DealerFeatures()
+        x.Init(buf, n + offset)
+        return x
+
+    # DealerFeatures
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # DealerFeatures
+    def CallerIdentification(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def CallTrustlevels(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def CallTimeout(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def CallCanceling(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def ProgressiveCallResults(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def RegistrationRevocation(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def PatternBasedRegistration(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def SharedRegistration(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def SessionMetaApi(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(20))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def RegistrationMetaApi(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(22))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def TestamentMetaApi(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(24))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def PayloadTransparency(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(26))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # DealerFeatures
+    def PayloadEncryptionCryptobox(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(28))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+def DealerFeaturesStart(builder): builder.StartObject(13)
+def DealerFeaturesAddCallerIdentification(builder, callerIdentification): builder.PrependBoolSlot(0, callerIdentification, 0)
+def DealerFeaturesAddCallTrustlevels(builder, callTrustlevels): builder.PrependBoolSlot(1, callTrustlevels, 0)
+def DealerFeaturesAddCallTimeout(builder, callTimeout): builder.PrependBoolSlot(2, callTimeout, 0)
+def DealerFeaturesAddCallCanceling(builder, callCanceling): builder.PrependBoolSlot(3, callCanceling, 0)
+def DealerFeaturesAddProgressiveCallResults(builder, progressiveCallResults): builder.PrependBoolSlot(4, progressiveCallResults, 0)
+def DealerFeaturesAddRegistrationRevocation(builder, registrationRevocation): builder.PrependBoolSlot(5, registrationRevocation, 0)
+def DealerFeaturesAddPatternBasedRegistration(builder, patternBasedRegistration): builder.PrependBoolSlot(6, patternBasedRegistration, 0)
+def DealerFeaturesAddSharedRegistration(builder, sharedRegistration): builder.PrependBoolSlot(7, sharedRegistration, 0)
+def DealerFeaturesAddSessionMetaApi(builder, sessionMetaApi): builder.PrependBoolSlot(8, sessionMetaApi, 0)
+def DealerFeaturesAddRegistrationMetaApi(builder, registrationMetaApi): builder.PrependBoolSlot(9, registrationMetaApi, 0)
+def DealerFeaturesAddTestamentMetaApi(builder, testamentMetaApi): builder.PrependBoolSlot(10, testamentMetaApi, 0)
+def DealerFeaturesAddPayloadTransparency(builder, payloadTransparency): builder.PrependBoolSlot(11, payloadTransparency, 0)
+def DealerFeaturesAddPayloadEncryptionCryptobox(builder, payloadEncryptionCryptobox): builder.PrependBoolSlot(12, payloadEncryptionCryptobox, 0)
+def DealerFeaturesEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Error.py

@@ -0,0 +1,110 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Error(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsError(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Error()
+        x.Init(buf, n + offset)
+        return x
+
+    # Error
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Error
+    def RequestType(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint16Flags, o + self._tab.Pos)
+        return 0
+
+    # Error
+    def Request(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Error
+    def Error(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Error
+    def Payload(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Error
+    def PayloadAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Error
+    def PayloadLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # Error
+    def EncAlgo(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Error
+    def EncSerializer(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Error
+    def EncKey(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Error
+    def EncKeyAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Error
+    def EncKeyLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+def ErrorStart(builder): builder.StartObject(7)
+def ErrorAddRequestType(builder, requestType): builder.PrependUint16Slot(0, requestType, 0)
+def ErrorAddRequest(builder, request): builder.PrependUint64Slot(1, request, 0)
+def ErrorAddError(builder, error): builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(error), 0)
+def ErrorAddPayload(builder, payload): builder.PrependUOffsetTRelativeSlot(3, flatbuffers.number_types.UOffsetTFlags.py_type(payload), 0)
+def ErrorStartPayloadVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def ErrorAddEncAlgo(builder, encAlgo): builder.PrependUint8Slot(4, encAlgo, 0)
+def ErrorAddEncSerializer(builder, encSerializer): builder.PrependUint8Slot(5, encSerializer, 0)
+def ErrorAddEncKey(builder, encKey): builder.PrependUOffsetTRelativeSlot(6, flatbuffers.number_types.UOffsetTFlags.py_type(encKey), 0)
+def ErrorStartEncKeyVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def ErrorEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Event.py

@@ -0,0 +1,223 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Event(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsEvent(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Event()
+        x.Init(buf, n + offset)
+        return x
+
+    # Event
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Event
+    def Subscription(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Event
+    def Publication(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+# /// Positional values for application-defined event payload.
+    # Event
+    def Args(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Event
+    def ArgsAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Event
+    def ArgsLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+# /// Keyword values for application-defined event payload.
+    # Event
+    def Kwargs(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Event
+    def KwargsAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Event
+    def KwargsLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+# /// Alternative, transparent payload. If given, ``args`` and ``kwargs`` must be left unset.
+    # Event
+    def Payload(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Event
+    def PayloadAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Event
+    def PayloadLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # Event
+    def EncAlgo(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Event
+    def EncSerializer(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Event
+    def EncKey(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Event
+    def EncKeyAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Event
+    def EncKeyLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # Event
+    def Publisher(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(20))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Event
+    def PublisherAuthid(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(22))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Event
+    def PublisherAuthrole(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(24))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Event
+    def Topic(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(26))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Event
+    def Retained(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(28))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # Event
+    def Acknowledge(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(30))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # Event
+    def ForwardFor(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(32))
+        if o != 0:
+            x = self._tab.Vector(o)
+            x += flatbuffers.number_types.UOffsetTFlags.py_type(j) * 4
+            x = self._tab.Indirect(x)
+            from .Principal import Principal
+            obj = Principal()
+            obj.Init(self._tab.Bytes, x)
+            return obj
+        return None
+
+    # Event
+    def ForwardForLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(32))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+def EventStart(builder): builder.StartObject(15)
+def EventAddSubscription(builder, subscription): builder.PrependUint64Slot(0, subscription, 0)
+def EventAddPublication(builder, publication): builder.PrependUint64Slot(1, publication, 0)
+def EventAddArgs(builder, args): builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(args), 0)
+def EventStartArgsVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventAddKwargs(builder, kwargs): builder.PrependUOffsetTRelativeSlot(3, flatbuffers.number_types.UOffsetTFlags.py_type(kwargs), 0)
+def EventStartKwargsVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventAddPayload(builder, payload): builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(payload), 0)
+def EventStartPayloadVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventAddEncAlgo(builder, encAlgo): builder.PrependUint8Slot(5, encAlgo, 0)
+def EventAddEncSerializer(builder, encSerializer): builder.PrependUint8Slot(6, encSerializer, 0)
+def EventAddEncKey(builder, encKey): builder.PrependUOffsetTRelativeSlot(7, flatbuffers.number_types.UOffsetTFlags.py_type(encKey), 0)
+def EventStartEncKeyVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventAddPublisher(builder, publisher): builder.PrependUint64Slot(8, publisher, 0)
+def EventAddPublisherAuthid(builder, publisherAuthid): builder.PrependUOffsetTRelativeSlot(9, flatbuffers.number_types.UOffsetTFlags.py_type(publisherAuthid), 0)
+def EventAddPublisherAuthrole(builder, publisherAuthrole): builder.PrependUOffsetTRelativeSlot(10, flatbuffers.number_types.UOffsetTFlags.py_type(publisherAuthrole), 0)
+def EventAddTopic(builder, topic): builder.PrependUOffsetTRelativeSlot(11, flatbuffers.number_types.UOffsetTFlags.py_type(topic), 0)
+def EventAddRetained(builder, retained): builder.PrependBoolSlot(12, retained, 0)
+def EventAddAcknowledge(builder, acknowledge): builder.PrependBoolSlot(13, acknowledge, 0)
+def EventAddForwardFor(builder, forwardFor): builder.PrependUOffsetTRelativeSlot(14, flatbuffers.number_types.UOffsetTFlags.py_type(forwardFor), 0)
+def EventStartForwardForVector(builder, numElems): return builder.StartVector(4, numElems, 4)
+def EventEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/EventReceived.py

@@ -0,0 +1,94 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class EventReceived(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsEventReceived(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = EventReceived()
+        x.Init(buf, n + offset)
+        return x
+
+    # EventReceived
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # EventReceived
+    def Publication(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # EventReceived
+    def Payload(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # EventReceived
+    def PayloadAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # EventReceived
+    def PayloadLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # EventReceived
+    def EncAlgo(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # EventReceived
+    def EncSerializer(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # EventReceived
+    def EncKey(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # EventReceived
+    def EncKeyAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # EventReceived
+    def EncKeyLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+def EventReceivedStart(builder): builder.StartObject(5)
+def EventReceivedAddPublication(builder, publication): builder.PrependUint64Slot(0, publication, 0)
+def EventReceivedAddPayload(builder, payload): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(payload), 0)
+def EventReceivedStartPayloadVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventReceivedAddEncAlgo(builder, encAlgo): builder.PrependUint8Slot(2, encAlgo, 0)
+def EventReceivedAddEncSerializer(builder, encSerializer): builder.PrependUint8Slot(3, encSerializer, 0)
+def EventReceivedAddEncKey(builder, encKey): builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(encKey), 0)
+def EventReceivedStartEncKeyVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def EventReceivedEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Hello.py

@@ -0,0 +1,118 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Hello(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsHello(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Hello()
+        x.Init(buf, n + offset)
+        return x
+
+    # Hello
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Hello
+    def Roles(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            x = self._tab.Indirect(o + self._tab.Pos)
+            from .ClientRoles import ClientRoles
+            obj = ClientRoles()
+            obj.Init(self._tab.Bytes, x)
+            return obj
+        return None
+
+    # Hello
+    def Realm(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Hello
+    def Authmethods(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Hello
+    def AuthmethodsAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Hello
+    def AuthmethodsLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # Hello
+    def Authid(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Hello
+    def Authrole(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+    # Hello
+    def Authextra(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            x = self._tab.Indirect(o + self._tab.Pos)
+            from .Map import Map
+            obj = Map()
+            obj.Init(self._tab.Bytes, x)
+            return obj
+        return None
+
+    # Hello
+    def Resumable(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(16))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # Hello
+    def ResumeSession(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(18))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Hello
+    def ResumeToken(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(20))
+        if o != 0:
+            return self._tab.String(o + self._tab.Pos)
+        return None
+
+def HelloStart(builder): builder.StartObject(9)
+def HelloAddRoles(builder, roles): builder.PrependUOffsetTRelativeSlot(0, flatbuffers.number_types.UOffsetTFlags.py_type(roles), 0)
+def HelloAddRealm(builder, realm): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(realm), 0)
+def HelloAddAuthmethods(builder, authmethods): builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(authmethods), 0)
+def HelloStartAuthmethodsVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def HelloAddAuthid(builder, authid): builder.PrependUOffsetTRelativeSlot(3, flatbuffers.number_types.UOffsetTFlags.py_type(authid), 0)
+def HelloAddAuthrole(builder, authrole): builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(authrole), 0)
+def HelloAddAuthextra(builder, authextra): builder.PrependUOffsetTRelativeSlot(5, flatbuffers.number_types.UOffsetTFlags.py_type(authextra), 0)
+def HelloAddResumable(builder, resumable): builder.PrependBoolSlot(6, resumable, 0)
+def HelloAddResumeSession(builder, resumeSession): builder.PrependUint64Slot(7, resumeSession, 0)
+def HelloAddResumeToken(builder, resumeToken): builder.PrependUOffsetTRelativeSlot(8, flatbuffers.number_types.UOffsetTFlags.py_type(resumeToken), 0)
+def HelloEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Interrupt.py

@@ -0,0 +1,38 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Interrupt(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsInterrupt(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Interrupt()
+        x.Init(buf, n + offset)
+        return x
+
+    # Interrupt
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Interrupt
+    def Request(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Interrupt
+    def Mode(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 1
+
+def InterruptStart(builder): builder.StartObject(2)
+def InterruptAddRequest(builder, request): builder.PrependUint64Slot(0, request, 0)
+def InterruptAddMode(builder, mode): builder.PrependUint8Slot(1, mode, 1)
+def InterruptEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Kdf.py

@@ -0,0 +1,9 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class Kdf(object):
+    NONE = 0
+    PBKDF2 = 1
+    ARGON2 = 2
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Match.py

@@ -0,0 +1,9 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class Match(object):
+    EXACT = 0
+    PREFIX = 1
+    WILDCARD = 2
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/PublisherFeatures.py

@@ -0,0 +1,70 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class PublisherFeatures(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsPublisherFeatures(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = PublisherFeatures()
+        x.Init(buf, n + offset)
+        return x
+
+    # PublisherFeatures
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # PublisherFeatures
+    def PublisherIdentification(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # PublisherFeatures
+    def PublisherExclusion(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # PublisherFeatures
+    def SubscriberBlackwhiteListing(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # PublisherFeatures
+    def AcknowledgeEventReceived(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # PublisherFeatures
+    def PayloadTransparency(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+    # PublisherFeatures
+    def PayloadEncryptionCryptobox(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(14))
+        if o != 0:
+            return bool(self._tab.Get(flatbuffers.number_types.BoolFlags, o + self._tab.Pos))
+        return False
+
+def PublisherFeaturesStart(builder): builder.StartObject(6)
+def PublisherFeaturesAddPublisherIdentification(builder, publisherIdentification): builder.PrependBoolSlot(0, publisherIdentification, 0)
+def PublisherFeaturesAddPublisherExclusion(builder, publisherExclusion): builder.PrependBoolSlot(1, publisherExclusion, 0)
+def PublisherFeaturesAddSubscriberBlackwhiteListing(builder, subscriberBlackwhiteListing): builder.PrependBoolSlot(2, subscriberBlackwhiteListing, 0)
+def PublisherFeaturesAddAcknowledgeEventReceived(builder, acknowledgeEventReceived): builder.PrependBoolSlot(3, acknowledgeEventReceived, 0)
+def PublisherFeaturesAddPayloadTransparency(builder, payloadTransparency): builder.PrependBoolSlot(4, payloadTransparency, 0)
+def PublisherFeaturesAddPayloadEncryptionCryptobox(builder, payloadEncryptionCryptobox): builder.PrependBoolSlot(5, payloadEncryptionCryptobox, 0)
+def PublisherFeaturesEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Serializer.py

@@ -0,0 +1,13 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+class Serializer(object):
+    TRANSPORT = 0
+    JSON = 1
+    MSGPACK = 2
+    CBOR = 3
+    UBJSON = 4
+    OPAQUE = 5
+    FLATBUFFERS = 6
+

venv/lib/python3.7/site-packages/autobahn/wamp/gen/wamp/proto/Yield.py

@@ -0,0 +1,94 @@
+# automatically generated by the FlatBuffers compiler, do not modify
+
+# namespace: proto
+
+import flatbuffers
+
+class Yield(object):
+    __slots__ = ['_tab']
+
+    @classmethod
+    def GetRootAsYield(cls, buf, offset):
+        n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, offset)
+        x = Yield()
+        x.Init(buf, n + offset)
+        return x
+
+    # Yield
+    def Init(self, buf, pos):
+        self._tab = flatbuffers.table.Table(buf, pos)
+
+    # Yield
+    def Request(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(4))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint64Flags, o + self._tab.Pos)
+        return 0
+
+    # Yield
+    def Payload(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Yield
+    def PayloadAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Yield
+    def PayloadLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(6))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+    # Yield
+    def EncAlgo(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(8))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Yield
+    def EncSerializer(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(10))
+        if o != 0:
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, o + self._tab.Pos)
+        return 0
+
+    # Yield
+    def EncKey(self, j):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            a = self._tab.Vector(o)
+            return self._tab.Get(flatbuffers.number_types.Uint8Flags, a + flatbuffers.number_types.UOffsetTFlags.py_type(j * 1))
+        return 0
+
+    # Yield
+    def EncKeyAsNumpy(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.GetVectorAsNumpy(flatbuffers.number_types.Uint8Flags, o)
+        return 0
+
+    # Yield
+    def EncKeyLength(self):
+        o = flatbuffers.number_types.UOffsetTFlags.py_type(self._tab.Offset(12))
+        if o != 0:
+            return self._tab.VectorLen(o)
+        return 0
+
+def YieldStart(builder): builder.StartObject(5)
+def YieldAddRequest(builder, request): builder.PrependUint64Slot(0, request, 0)
+def YieldAddPayload(builder, payload): builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(payload), 0)
+def YieldStartPayloadVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def YieldAddEncAlgo(builder, encAlgo): builder.PrependUint8Slot(2, encAlgo, 0)
+def YieldAddEncSerializer(builder, encSerializer): builder.PrependUint8Slot(3, encSerializer, 0)
+def YieldAddEncKey(builder, encKey): builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(encKey), 0)
+def YieldStartEncKeyVector(builder, numElems): return builder.StartVector(1, numElems, 1)
+def YieldEnd(builder): return builder.EndObject()

venv/lib/python3.7/site-packages/autobahn/wamp/test/test_cryptobox.py

@@ -0,0 +1,39 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+from autobahn.wamp import cryptobox
+
+import unittest
+
+
+@unittest.skipIf(not cryptobox.HAS_CRYPTOBOX, 'no cryptobox support present')
+class TestCryptoBox(unittest.TestCase):
+
+    def test_create_keyring(self):
+        kr = cryptobox.KeyRing()
+        assert kr

venv/lib/python3.7/site-packages/autobahn/wamp/test/test_cryptosign.py

@@ -0,0 +1,127 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import hashlib
+import os
+
+from mock import Mock
+
+import txaio
+
+if os.environ.get('USE_TWISTED', False):
+    txaio.use_twisted()
+elif os.environ.get('USE_ASYNCIO', False):
+    txaio.use_asyncio()
+else:
+    raise Exception('no networking framework selected')
+
+from autobahn.wamp.cryptosign import _makepad, HAS_CRYPTOSIGN
+from autobahn.wamp import types
+from autobahn.wamp.auth import create_authenticator
+
+if HAS_CRYPTOSIGN:
+    from autobahn.wamp.cryptosign import SigningKey
+    from nacl.encoding import HexEncoder
+
+import tempfile
+
+import unittest
+
+keybody = '''-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACAa38i/4dNWFuZN/72QAJbyOwZvkUyML/u2b2B1uW4RbQAAAJj4FLyB+BS8
+gQAAAAtzc2gtZWQyNTUxOQAAACAa38i/4dNWFuZN/72QAJbyOwZvkUyML/u2b2B1uW4RbQ
+AAAEBNV9l6aPVVaWYgpthJwM5YJWhRjXKet1PcfHMt4oBFEBrfyL/h01YW5k3/vZAAlvI7
+Bm+RTIwv+7ZvYHW5bhFtAAAAFXNvbWV1c2VyQGZ1bmt0aGF0LmNvbQ==
+-----END OPENSSH PRIVATE KEY-----'''
+
+pubkey = '''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJVp3hjHwIQyEladzd8mFcf0YSXcmyKS3qMLB7VqTQKm someuser@example.com
+'''
+
+
+@unittest.skipIf(not HAS_CRYPTOSIGN, 'nacl library not present')
+class TestAuth(unittest.TestCase):
+
+    def setUp(self):
+        self.key = SigningKey.from_ssh_data(keybody)
+        self.privkey_hex = self.key._key.encode(encoder=HexEncoder)
+        m = hashlib.sha256()
+        m.update("some TLS message".encode())
+        self.channel_id = m.digest()
+
+    def test_valid(self):
+        session = Mock()
+        session._transport.get_channel_id = Mock(return_value=self.channel_id)
+        challenge = types.Challenge(u"ticket", dict(challenge="ff" * 32))
+        signed = yield self.key.sign_challenge(session, challenge)
+        self.assertEqual(
+            u'9b6f41540c9b95b4b7b281c3042fa9c54cef43c842d62ea3fd6030fcb66e70b3e80d49d44c29d1635da9348d02ec93f3ed1ef227dfb59a07b580095c2b82f80f9d16ca518aa0c2b707f2b2a609edeca73bca8dd59817a633f35574ac6fd80d00',
+            signed.result,
+        )
+
+    def test_authenticator(self):
+        authenticator = create_authenticator(
+            u"cryptosign",
+            authid="someone",
+            privkey=self.privkey_hex,
+        )
+        session = Mock()
+        session._transport.get_channel_id = Mock(return_value=self.channel_id)
+        challenge = types.Challenge(u"cryptosign", dict(challenge="ff" * 32))
+        reply = yield authenticator.on_challenge(session, challenge)
+        self.assertEqual(
+            reply.result,
+            u'9b6f41540c9b95b4b7b281c3042fa9c54cef43c842d62ea3fd6030fcb66e70b3e80d49d44c29d1635da9348d02ec93f3ed1ef227dfb59a07b580095c2b82f80f9d16ca518aa0c2b707f2b2a609edeca73bca8dd59817a633f35574ac6fd80d00',
+        )
+
+
+class TestKey(unittest.TestCase):
+
+    def test_pad(self):
+        self.assertEqual(_makepad(0), '')
+        self.assertEqual(_makepad(2), '\x01\x02')
+        self.assertEqual(_makepad(3), '\x01\x02\x03')
+
+    @unittest.skipIf(not HAS_CRYPTOSIGN, 'nacl library not present')
+    def test_key(self):
+        with tempfile.NamedTemporaryFile('w+t') as fp:
+            fp.write(keybody)
+            fp.seek(0)
+
+            key = SigningKey.from_ssh_key(fp.name)
+            self.assertEqual(key.public_key(), '1adfc8bfe1d35616e64dffbd900096f23b066f914c8c2ffbb66f6075b96e116d')
+
+    @unittest.skipIf(not HAS_CRYPTOSIGN, 'nacl library not present')
+    def test_pubkey(self):
+        with tempfile.NamedTemporaryFile('w+t') as fp:
+            fp.write(pubkey)
+            fp.seek(0)
+
+            key = SigningKey.from_ssh_key(fp.name)
+            self.assertEqual(key.public_key(), '9569de18c7c0843212569dcddf2615c7f46125dc9b2292dea30b07b56a4d02a6')
+            self.assertEqual(key.comment(), 'someuser@example.com')

venv/lib/python3.7/site-packages/autobahn/wamp/test/test_uri_pattern.py

@@ -0,0 +1,580 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+from autobahn import wamp
+from autobahn.wamp.uri import Pattern, RegisterOptions, SubscribeOptions
+
+import unittest
+
+
+class TestUris(unittest.TestCase):
+
+    def test_invalid_uris(self):
+        for u in [u"",
+                  u"com.myapp.<product:foo>.update",
+                  u"com.myapp.<123:int>.update",
+                  u"com.myapp.<:product>.update",
+                  u"com.myapp.<product:>.update",
+                  u"com.myapp.<int:>.update",
+                  ]:
+            self.assertRaises(Exception, Pattern, u, Pattern.URI_TARGET_ENDPOINT)
+
+    def test_valid_uris(self):
+        for u in [u"com.myapp.proc1",
+                  u"123",
+                  u"com.myapp.<product:int>.update",
+                  u"com.myapp.<category:string>.<subcategory>.list"
+                  u"com.myapp.something..update"
+                  ]:
+            p = Pattern(u, Pattern.URI_TARGET_ENDPOINT)
+            self.assertIsInstance(p, Pattern)
+
+    def test_parse_uris(self):
+        tests = [
+            (u"com.myapp.<product:int>.update", [
+                (u"com.myapp.0.update", {u'product': 0}),
+                (u"com.myapp.123456.update", {u'product': 123456}),
+                (u"com.myapp.aaa.update", None),
+                (u"com.myapp..update", None),
+                (u"com.myapp.0.delete", None),
+            ]
+            ),
+            (u"com.myapp.<product:string>.update", [
+                (u"com.myapp.box.update", {u'product': u'box'}),
+                (u"com.myapp.123456.update", {u'product': u'123456'}),
+                (u"com.myapp..update", None),
+            ]
+            ),
+            (u"com.myapp.<product>.update", [
+                (u"com.myapp.0.update", {u'product': u'0'}),
+                (u"com.myapp.abc.update", {u'product': u'abc'}),
+                (u"com.myapp..update", None),
+            ]
+            ),
+            (u"com.myapp.<category:string>.<subcategory:string>.list", [
+                (u"com.myapp.cosmetic.shampoo.list", {u'category': u'cosmetic', u'subcategory': u'shampoo'}),
+                (u"com.myapp...list", None),
+                (u"com.myapp.cosmetic..list", None),
+                (u"com.myapp..shampoo.list", None),
+            ]
+            )
+        ]
+        for test in tests:
+            pat = Pattern(test[0], Pattern.URI_TARGET_ENDPOINT)
+            for ptest in test[1]:
+                uri = ptest[0]
+                kwargs_should = ptest[1]
+                if kwargs_should is not None:
+                    args_is, kwargs_is = pat.match(uri)
+                    self.assertEqual(kwargs_is, kwargs_should)
+                else:
+                    self.assertRaises(Exception, pat.match, uri)
+
+
+class TestDecorators(unittest.TestCase):
+
+    def test_decorate_endpoint(self):
+
+        @wamp.register(u"com.calculator.square")
+        def square(_):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(square, '_wampuris'))
+        self.assertTrue(type(square._wampuris) == list)
+        self.assertEqual(len(square._wampuris), 1)
+        self.assertIsInstance(square._wampuris[0], Pattern)
+        self.assertTrue(square._wampuris[0].is_endpoint())
+        self.assertFalse(square._wampuris[0].is_handler())
+        self.assertFalse(square._wampuris[0].is_exception())
+        self.assertEqual(square._wampuris[0].uri(), u"com.calculator.square")
+        self.assertEqual(square._wampuris[0]._type, Pattern.URI_TYPE_EXACT)
+
+        @wamp.register(u"com.myapp.product.<product:int>.update")
+        def update_product(product=None, label=None):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(update_product, '_wampuris'))
+        self.assertTrue(type(update_product._wampuris) == list)
+        self.assertEqual(len(update_product._wampuris), 1)
+        self.assertIsInstance(update_product._wampuris[0], Pattern)
+        self.assertTrue(update_product._wampuris[0].is_endpoint())
+        self.assertFalse(update_product._wampuris[0].is_handler())
+        self.assertFalse(update_product._wampuris[0].is_exception())
+        self.assertEqual(update_product._wampuris[0].uri(), u"com.myapp.product.<product:int>.update")
+        self.assertEqual(update_product._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.register(u"com.myapp.<category:string>.<cid:int>.update")
+        def update(category=None, cid=None):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(update, '_wampuris'))
+        self.assertTrue(type(update._wampuris) == list)
+        self.assertEqual(len(update._wampuris), 1)
+        self.assertIsInstance(update._wampuris[0], Pattern)
+        self.assertTrue(update._wampuris[0].is_endpoint())
+        self.assertFalse(update._wampuris[0].is_handler())
+        self.assertFalse(update._wampuris[0].is_exception())
+        self.assertEqual(update._wampuris[0].uri(), u"com.myapp.<category:string>.<cid:int>.update")
+        self.assertEqual(update._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.register(u"com.myapp.circle.<name:string>",
+                       RegisterOptions(match=u"wildcard", details_arg="details"))
+        def circle(name=None, details=None):
+            """ Do nothing. """
+
+        self.assertTrue(hasattr(circle, '_wampuris'))
+        self.assertTrue(type(circle._wampuris) == list)
+        self.assertEqual(len(circle._wampuris), 1)
+        self.assertIsInstance(circle._wampuris[0], Pattern)
+        self.assertIsInstance(circle._wampuris[0].options, RegisterOptions)
+        self.assertEqual(circle._wampuris[0].options.match, u"wildcard")
+        self.assertEqual(circle._wampuris[0].options.details_arg, "details")
+        self.assertTrue(circle._wampuris[0].is_endpoint())
+        self.assertFalse(circle._wampuris[0].is_handler())
+        self.assertFalse(circle._wampuris[0].is_exception())
+        self.assertEqual(circle._wampuris[0].uri(), u"com.myapp.circle.<name:string>")
+        self.assertEqual(circle._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.register(u"com.myapp.something..update",
+                       RegisterOptions(match=u"wildcard", details_arg="details"))
+        def something(dynamic=None, details=None):
+            """ Do nothing. """
+        self.assertTrue(hasattr(something, '_wampuris'))
+        self.assertTrue(type(something._wampuris) == list)
+        self.assertEqual(len(something._wampuris), 1)
+        self.assertIsInstance(something._wampuris[0], Pattern)
+        self.assertIsInstance(something._wampuris[0].options, RegisterOptions)
+        self.assertEqual(something._wampuris[0].options.match, u"wildcard")
+        self.assertEqual(something._wampuris[0].options.details_arg, "details")
+        self.assertTrue(something._wampuris[0].is_endpoint())
+        self.assertFalse(something._wampuris[0].is_handler())
+        self.assertFalse(something._wampuris[0].is_exception())
+        self.assertEqual(something._wampuris[0].uri(), u"com.myapp.something..update")
+        self.assertEqual(something._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+    def test_decorate_handler(self):
+
+        @wamp.subscribe(u"com.myapp.on_shutdown")
+        def on_shutdown():
+            """Do nothing."""
+
+        self.assertTrue(hasattr(on_shutdown, '_wampuris'))
+        self.assertTrue(type(on_shutdown._wampuris) == list)
+        self.assertEqual(len(on_shutdown._wampuris), 1)
+        self.assertIsInstance(on_shutdown._wampuris[0], Pattern)
+        self.assertFalse(on_shutdown._wampuris[0].is_endpoint())
+        self.assertTrue(on_shutdown._wampuris[0].is_handler())
+        self.assertFalse(on_shutdown._wampuris[0].is_exception())
+        self.assertEqual(on_shutdown._wampuris[0].uri(), u"com.myapp.on_shutdown")
+        self.assertEqual(on_shutdown._wampuris[0]._type, Pattern.URI_TYPE_EXACT)
+
+        @wamp.subscribe(u"com.myapp.product.<product:int>.on_update")
+        def on_product_update(product=None, label=None):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(on_product_update, '_wampuris'))
+        self.assertTrue(type(on_product_update._wampuris) == list)
+        self.assertEqual(len(on_product_update._wampuris), 1)
+        self.assertIsInstance(on_product_update._wampuris[0], Pattern)
+        self.assertFalse(on_product_update._wampuris[0].is_endpoint())
+        self.assertTrue(on_product_update._wampuris[0].is_handler())
+        self.assertFalse(on_product_update._wampuris[0].is_exception())
+        self.assertEqual(on_product_update._wampuris[0].uri(), u"com.myapp.product.<product:int>.on_update")
+        self.assertEqual(on_product_update._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.subscribe(u"com.myapp.<category:string>.<cid:int>.on_update")
+        def on_update(category=None, cid=None, label=None):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(on_update, '_wampuris'))
+        self.assertTrue(type(on_update._wampuris) == list)
+        self.assertEqual(len(on_update._wampuris), 1)
+        self.assertIsInstance(on_update._wampuris[0], Pattern)
+        self.assertFalse(on_update._wampuris[0].is_endpoint())
+        self.assertTrue(on_update._wampuris[0].is_handler())
+        self.assertFalse(on_update._wampuris[0].is_exception())
+        self.assertEqual(on_update._wampuris[0].uri(), u"com.myapp.<category:string>.<cid:int>.on_update")
+        self.assertEqual(on_update._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.subscribe(u"com.myapp.on.<event:string>",
+                        SubscribeOptions(match=u"wildcard", details_arg="details"))
+        def on_event(event=None, details=None):
+            """ Do nothing. """
+
+        self.assertTrue(hasattr(on_event, '_wampuris'))
+        self.assertTrue(type(on_event._wampuris) == list)
+        self.assertEqual(len(on_event._wampuris), 1)
+        self.assertIsInstance(on_event._wampuris[0], Pattern)
+        self.assertIsInstance(on_event._wampuris[0].options, SubscribeOptions)
+        self.assertEqual(on_event._wampuris[0].options.match, u"wildcard")
+        self.assertEqual(on_event._wampuris[0].options.details_arg, "details")
+        self.assertFalse(on_event._wampuris[0].is_endpoint())
+        self.assertTrue(on_event._wampuris[0].is_handler())
+        self.assertFalse(on_event._wampuris[0].is_exception())
+        self.assertEqual(on_event._wampuris[0].uri(), u"com.myapp.on.<event:string>")
+        self.assertEqual(on_event._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+    def test_decorate_exception(self):
+
+        @wamp.error(u"com.myapp.error")
+        class AppError(Exception):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(AppError, '_wampuris'))
+        self.assertTrue(type(AppError._wampuris) == list)
+        self.assertEqual(len(AppError._wampuris), 1)
+        self.assertIsInstance(AppError._wampuris[0], Pattern)
+        self.assertFalse(AppError._wampuris[0].is_endpoint())
+        self.assertFalse(AppError._wampuris[0].is_handler())
+        self.assertTrue(AppError._wampuris[0].is_exception())
+        self.assertEqual(AppError._wampuris[0].uri(), u"com.myapp.error")
+        self.assertEqual(AppError._wampuris[0]._type, Pattern.URI_TYPE_EXACT)
+
+        @wamp.error(u"com.myapp.product.<product:int>.product_inactive")
+        class ProductInactiveError(Exception):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(ProductInactiveError, '_wampuris'))
+        self.assertTrue(type(ProductInactiveError._wampuris) == list)
+        self.assertEqual(len(ProductInactiveError._wampuris), 1)
+        self.assertIsInstance(ProductInactiveError._wampuris[0], Pattern)
+        self.assertFalse(ProductInactiveError._wampuris[0].is_endpoint())
+        self.assertFalse(ProductInactiveError._wampuris[0].is_handler())
+        self.assertTrue(ProductInactiveError._wampuris[0].is_exception())
+        self.assertEqual(ProductInactiveError._wampuris[0].uri(), u"com.myapp.product.<product:int>.product_inactive")
+        self.assertEqual(ProductInactiveError._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+        @wamp.error(u"com.myapp.<category:string>.<product:int>.inactive")
+        class ObjectInactiveError(Exception):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(ObjectInactiveError, '_wampuris'))
+        self.assertTrue(type(ObjectInactiveError._wampuris) == list)
+        self.assertEqual(len(ObjectInactiveError._wampuris), 1)
+        self.assertIsInstance(ObjectInactiveError._wampuris[0], Pattern)
+        self.assertFalse(ObjectInactiveError._wampuris[0].is_endpoint())
+        self.assertFalse(ObjectInactiveError._wampuris[0].is_handler())
+        self.assertTrue(ObjectInactiveError._wampuris[0].is_exception())
+        self.assertEqual(ObjectInactiveError._wampuris[0].uri(), u"com.myapp.<category:string>.<product:int>.inactive")
+        self.assertEqual(ObjectInactiveError._wampuris[0]._type, Pattern.URI_TYPE_WILDCARD)
+
+    def test_match_decorated_endpoint(self):
+
+        @wamp.register(u"com.calculator.square")
+        def square(x):
+            return x
+
+        args, kwargs = square._wampuris[0].match(u"com.calculator.square")
+        self.assertEqual(square(666, **kwargs), 666)
+
+        @wamp.register(u"com.myapp.product.<product:int>.update")
+        def update_product(product=None, label=None):
+            return product, label
+
+        args, kwargs = update_product._wampuris[0].match(u"com.myapp.product.123456.update")
+        kwargs['label'] = "foobar"
+        self.assertEqual(update_product(**kwargs), (123456, "foobar"))
+
+        @wamp.register(u"com.myapp.<category:string>.<cid:int>.update")
+        def update(category=None, cid=None, label=None):
+            return category, cid, label
+
+        args, kwargs = update._wampuris[0].match(u"com.myapp.product.123456.update")
+        kwargs['label'] = "foobar"
+        self.assertEqual(update(**kwargs), ("product", 123456, "foobar"))
+
+    def test_match_decorated_handler(self):
+
+        @wamp.subscribe(u"com.myapp.on_shutdown")
+        def on_shutdown():
+            pass
+
+        args, kwargs = on_shutdown._wampuris[0].match(u"com.myapp.on_shutdown")
+        self.assertEqual(on_shutdown(**kwargs), None)
+
+        @wamp.subscribe(u"com.myapp.product.<product:int>.on_update")
+        def on_product_update(product=None, label=None):
+            return product, label
+
+        args, kwargs = on_product_update._wampuris[0].match(u"com.myapp.product.123456.on_update")
+        kwargs['label'] = "foobar"
+        self.assertEqual(on_product_update(**kwargs), (123456, "foobar"))
+
+        @wamp.subscribe(u"com.myapp.<category:string>.<cid:int>.on_update")
+        def on_update(category=None, cid=None, label=None):
+            return category, cid, label
+
+        args, kwargs = on_update._wampuris[0].match(u"com.myapp.product.123456.on_update")
+        kwargs['label'] = "foobar"
+        self.assertEqual(on_update(**kwargs), ("product", 123456, "foobar"))
+
+    def test_match_decorated_exception(self):
+
+        @wamp.error(u"com.myapp.error")
+        class AppError(Exception):
+
+            def __init__(self, msg):
+                Exception.__init__(self, msg)
+
+            def __eq__(self, other):
+                return self.__class__ == other.__class__ and \
+                    self.args == other.args
+
+        args, kwargs = AppError._wampuris[0].match(u"com.myapp.error")
+        # noinspection PyArgumentList
+        self.assertEqual(AppError(u"fuck", **kwargs), AppError(u"fuck"))
+
+        @wamp.error(u"com.myapp.product.<product:int>.product_inactive")
+        class ProductInactiveError(Exception):
+
+            def __init__(self, msg, product=None):
+                Exception.__init__(self, msg)
+                self.product = product
+
+            def __eq__(self, other):
+                return self.__class__ == other.__class__ and \
+                    self.args == other.args and \
+                    self.product == other.product
+
+        args, kwargs = ProductInactiveError._wampuris[0].match(u"com.myapp.product.123456.product_inactive")
+        self.assertEqual(ProductInactiveError("fuck", **kwargs), ProductInactiveError("fuck", 123456))
+
+        @wamp.error(u"com.myapp.<category:string>.<product:int>.inactive")
+        class ObjectInactiveError(Exception):
+
+            def __init__(self, msg, category=None, product=None):
+                Exception.__init__(self, msg)
+                self.category = category
+                self.product = product
+
+            def __eq__(self, other):
+                return self.__class__ == other.__class__ and \
+                    self.args == other.args and \
+                    self.category == other.category and \
+                    self.product == other.product
+
+        args, kwargs = ObjectInactiveError._wampuris[0].match(u"com.myapp.product.123456.inactive")
+        self.assertEqual(ObjectInactiveError("fuck", **kwargs), ObjectInactiveError("fuck", "product", 123456))
+
+
+class KwException(Exception):
+    def __init__(self, *args, **kwargs):
+        Exception.__init__(self, *args)
+        self.kwargs = kwargs
+
+# what if the WAMP error message received
+# contains args/kwargs that cannot be
+# consumed by the constructor of the exception
+# class defined for the WAMP error URI?
+
+# 1. we can bail out (but we are already signaling an error)
+# 2. we can require a generic constructor
+# 3. we can map only unconsumed args/kwargs to generic attributes
+# 4. we can silently drop unconsumed args/kwargs
+
+
+class MockSession(object):
+
+    def __init__(self):
+        self._ecls_to_uri_pat = {}
+        self._uri_to_ecls = {}
+
+    def define(self, exception, error=None):
+        if error is None:
+            assert(hasattr(exception, '_wampuris'))
+            self._ecls_to_uri_pat[exception] = exception._wampuris
+            self._uri_to_ecls[exception._wampuris[0].uri()] = exception
+        else:
+            assert(not hasattr(exception, '_wampuris'))
+            self._ecls_to_uri_pat[exception] = [Pattern(error, Pattern.URI_TARGET_HANDLER)]
+            self._uri_to_ecls[error] = exception
+
+    def map_error(self, error, args=None, kwargs=None):
+
+        # FIXME:
+        # 1. map to ecls based on error URI wildcard/prefix
+        # 2. extract additional args/kwargs from error URI
+
+        if error in self._uri_to_ecls:
+            ecls = self._uri_to_ecls[error]
+            try:
+                # the following might fail, eg. TypeError when
+                # signature of exception constructor is incompatible
+                # with args/kwargs or when the exception constructor raises
+                if kwargs:
+                    if args:
+                        exc = ecls(*args, **kwargs)
+                    else:
+                        exc = ecls(**kwargs)
+                else:
+                    if args:
+                        exc = ecls(*args)
+                    else:
+                        exc = ecls()
+            except Exception:
+                # FIXME: log e
+                exc = KwException(error, *args, **kwargs)
+        else:
+            # this never fails
+            args = args or []
+            kwargs = kwargs or {}
+            exc = KwException(error, *args, **kwargs)
+        return exc
+
+
+class TestDecoratorsAdvanced(unittest.TestCase):
+
+    def test_decorate_exception_non_exception(self):
+
+        def test():
+            # noinspection PyUnusedLocal
+            @wamp.error(u"com.test.error")
+            class Foo(object):
+                pass
+
+        self.assertRaises(Exception, test)
+
+    def test_decorate_endpoint_multiple(self):
+
+        # noinspection PyUnusedLocal
+        @wamp.register(u"com.oldapp.oldproc")
+        @wamp.register(u"com.calculator.square")
+        def square(x):
+            """Do nothing."""
+
+        self.assertTrue(hasattr(square, '_wampuris'))
+        self.assertTrue(type(square._wampuris) == list)
+        self.assertEqual(len(square._wampuris), 2)
+
+        for i in range(2):
+            self.assertIsInstance(square._wampuris[i], Pattern)
+            self.assertTrue(square._wampuris[i].is_endpoint())
+            self.assertFalse(square._wampuris[i].is_handler())
+            self.assertFalse(square._wampuris[i].is_exception())
+            self.assertEqual(square._wampuris[i]._type, Pattern.URI_TYPE_EXACT)
+
+        self.assertEqual(square._wampuris[0].uri(), u"com.calculator.square")
+        self.assertEqual(square._wampuris[1].uri(), u"com.oldapp.oldproc")
+
+    def test_marshal_decorated_exception(self):
+
+        @wamp.error(u"com.myapp.error")
+        class AppError(Exception):
+            pass
+
+        try:
+            raise AppError("fuck")
+        except Exception as e:
+            self.assertEqual(e._wampuris[0].uri(), u"com.myapp.error")
+
+        @wamp.error(u"com.myapp.product.<product:int>.product_inactive")
+        class ProductInactiveError(Exception):
+
+            def __init__(self, msg, product=None):
+                Exception.__init__(self, msg)
+                self.product = product
+
+        try:
+            raise ProductInactiveError("fuck", 123456)
+        except Exception as e:
+            self.assertEqual(e._wampuris[0].uri(), u"com.myapp.product.<product:int>.product_inactive")
+
+        session = MockSession()
+        session.define(AppError)
+
+    def test_define_exception_undecorated(self):
+
+        session = MockSession()
+
+        class AppError(Exception):
+            pass
+
+        # defining an undecorated exception requires
+        # an URI to be provided
+        self.assertRaises(Exception, session.define, AppError)
+
+        session.define(AppError, u"com.myapp.error")
+
+        exc = session.map_error(u"com.myapp.error")
+        self.assertIsInstance(exc, AppError)
+
+    def test_define_exception_decorated(self):
+
+        session = MockSession()
+
+        @wamp.error(u"com.myapp.error")
+        class AppError(Exception):
+            pass
+
+        # when defining a decorated exception
+        # an URI must not be provided
+        self.assertRaises(Exception, session.define, AppError, u"com.myapp.error")
+
+        session.define(AppError)
+
+        exc = session.map_error(u"com.myapp.error")
+        self.assertIsInstance(exc, AppError)
+
+    def test_map_exception_undefined(self):
+
+        session = MockSession()
+
+        exc = session.map_error(u"com.myapp.error")
+        self.assertIsInstance(exc, Exception)
+
+    def test_map_exception_args(self):
+
+        session = MockSession()
+
+        @wamp.error(u"com.myapp.error")
+        class AppError(Exception):
+            pass
+
+        @wamp.error(u"com.myapp.error.product_inactive")
+        class ProductInactiveError(Exception):
+            def __init__(self, product=None):
+                self.product = product
+
+        # define exceptions in mock session
+        session.define(AppError)
+        session.define(ProductInactiveError)
+
+        for test in [
+            # (u"com.myapp.foo.error", [], {}, KwException),
+            (u"com.myapp.error", [], {}, AppError),
+            (u"com.myapp.error", ["you are doing it wrong"], {}, AppError),
+            (u"com.myapp.error", ["you are doing it wrong", 1, 2, 3], {}, AppError),
+
+            (u"com.myapp.error.product_inactive", [], {}, ProductInactiveError),
+            (u"com.myapp.error.product_inactive", [], {"product": 123456}, ProductInactiveError),
+        ]:
+            error, args, kwargs, ecls = test
+            exc = session.map_error(error, args, kwargs)
+
+            self.assertIsInstance(exc, ecls)
+            self.assertEqual(list(exc.args), args)

venv/lib/python3.7/site-packages/autobahn/wamp/websocket.py

@@ -0,0 +1,296 @@
+###############################################################################
+#
+# The MIT License (MIT)
+#
+# Copyright (c) Crossbar.io Technologies GmbH
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+###############################################################################
+
+from __future__ import absolute_import
+
+import traceback
+
+from autobahn.websocket import protocol
+from autobahn.websocket.types import ConnectionDeny
+from autobahn.wamp.interfaces import ITransport
+from autobahn.wamp.exception import ProtocolError, SerializationError, TransportLost
+
+__all__ = ('WampWebSocketServerProtocol',
+           'WampWebSocketClientProtocol',
+           'WampWebSocketServerFactory',
+           'WampWebSocketClientFactory')
+
+
+class WampWebSocketProtocol(object):
+    """
+    Base class for WAMP-over-WebSocket transport mixins.
+    """
+
+    _session = None  # default; self.session is set in onOpen
+
+    def _bailout(self, code, reason=None):
+        self.log.debug('Failing WAMP-over-WebSocket transport: code={code}, reason="{reason}"', code=code, reason=reason)
+        self._fail_connection(code, reason)
+
+    def onOpen(self):
+        """
+        Callback from :func:`autobahn.websocket.interfaces.IWebSocketChannel.onOpen`
+        """
+        # WebSocket connection established. Now let the user WAMP session factory
+        # create a new WAMP session and fire off session open callback.
+        try:
+            self._session = self.factory._factory()
+            self._session.onOpen(self)
+        except Exception as e:
+            self.log.critical("{tb}", tb=traceback.format_exc())
+            reason = u'WAMP Internal Error ({0})'.format(e)
+            self._bailout(protocol.WebSocketProtocol.CLOSE_STATUS_CODE_INTERNAL_ERROR, reason=reason)
+
+    def onClose(self, wasClean, code, reason):
+        """
+        Callback from :func:`autobahn.websocket.interfaces.IWebSocketChannel.onClose`
+        """
+        # WAMP session might never have been established in the first place .. guard this!
+        self._onclose_reason = reason
+        if self._session is not None:
+            # WebSocket connection lost - fire off the WAMP
+            # session close callback
+            # noinspection PyBroadException
+            try:
+                self.log.debug('WAMP-over-WebSocket transport lost: wasClean={wasClean}, code={code}, reason="{reason}"', wasClean=wasClean, code=code, reason=reason)
+                self._session.onClose(wasClean)
+            except Exception:
+                self.log.critical("{tb}", tb=traceback.format_exc())
+            self._session = None
+
+    def onMessage(self, payload, isBinary):
+        """
+        Callback from :func:`autobahn.websocket.interfaces.IWebSocketChannel.onMessage`
+        """
+        try:
+            for msg in self._serializer.unserialize(payload, isBinary):
+                self.log.trace(
+                    "WAMP RECV: message={message}, session={session}, authid={authid}",
+                    authid=self._session._authid,
+                    session=self._session._session_id,
+                    message=msg,
+                )
+                self._session.onMessage(msg)
+
+        except ProtocolError as e:
+            self.log.critical("{tb}", tb=traceback.format_exc())
+            reason = u'WAMP Protocol Error ({0})'.format(e)
+            self._bailout(protocol.WebSocketProtocol.CLOSE_STATUS_CODE_PROTOCOL_ERROR, reason=reason)
+
+        except Exception as e:
+            self.log.critical("{tb}", tb=traceback.format_exc())
+            reason = u'WAMP Internal Error ({0})'.format(e)
+            self._bailout(protocol.WebSocketProtocol.CLOSE_STATUS_CODE_INTERNAL_ERROR, reason=reason)
+
+    def send(self, msg):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.send`
+        """
+        if self.isOpen():
+            try:
+                self.log.trace(
+                    "WAMP SEND: message={message}, session={session}, authid={authid}",
+                    authid=self._session._authid,
+                    session=self._session._session_id,
+                    message=msg,
+                )
+                payload, isBinary = self._serializer.serialize(msg)
+            except Exception as e:
+                self.log.error("WAMP message serialization error: {}".format(e))
+                # all exceptions raised from above should be serialization errors ..
+                raise SerializationError(u"WAMP message serialization error: {0}".format(e))
+            else:
+                self.sendMessage(payload, isBinary)
+        else:
+            raise TransportLost()
+
+    def isOpen(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.isOpen`
+        """
+        return self._session is not None
+
+    def close(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.close`
+        """
+        if self.isOpen():
+            self.sendClose(protocol.WebSocketProtocol.CLOSE_STATUS_CODE_NORMAL)
+        else:
+            raise TransportLost()
+
+    def abort(self):
+        """
+        Implements :func:`autobahn.wamp.interfaces.ITransport.abort`
+        """
+        if self.isOpen():
+            self._bailout(protocol.WebSocketProtocol.CLOSE_STATUS_CODE_GOING_AWAY)
+        else:
+            raise TransportLost()
+
+
+ITransport.register(WampWebSocketProtocol)
+
+
+def parseSubprotocolIdentifier(subprotocol):
+    try:
+        s = subprotocol.split(u'.')
+        if s[0] != u'wamp':
+            raise Exception(u'WAMP WebSocket subprotocol identifier must start with "wamp", not "{}"'.format(s[0]))
+        version = int(s[1])
+        serializerId = u'.'.join(s[2:])
+        return version, serializerId
+    except:
+        return None, None
+
+
+class WampWebSocketServerProtocol(WampWebSocketProtocol):
+    """
+    Mixin for WAMP-over-WebSocket server transports.
+    """
+
+    STRICT_PROTOCOL_NEGOTIATION = True
+
+    def onConnect(self, request):
+        """
+        Callback from :func:`autobahn.websocket.interfaces.IWebSocketChannel.onConnect`
+        """
+        headers = {}
+        for subprotocol in request.protocols:
+            version, serializerId = parseSubprotocolIdentifier(subprotocol)
+            if version == 2 and serializerId in self.factory._serializers.keys():
+                self._serializer = self.factory._serializers[serializerId]
+                return subprotocol, headers
+
+        if self.STRICT_PROTOCOL_NEGOTIATION:
+            raise ConnectionDeny(ConnectionDeny.BAD_REQUEST, u'This server only speaks WebSocket subprotocols {}'.format(u', '.join(self.factory.protocols)))
+        else:
+            # assume wamp.2.json
+            self._serializer = self.factory._serializers[u'json']
+            return None, headers
+
+
+class WampWebSocketClientProtocol(WampWebSocketProtocol):
+    """
+    Mixin for WAMP-over-WebSocket client transports.
+    """
+
+    STRICT_PROTOCOL_NEGOTIATION = True
+
+    def onConnect(self, response):
+        """
+        Callback from :func:`autobahn.websocket.interfaces.IWebSocketChannel.onConnect`
+        """
+        if response.protocol not in self.factory.protocols:
+            if self.STRICT_PROTOCOL_NEGOTIATION:
+                raise Exception(u'The server does not speak any of the WebSocket subprotocols {} we requested.'.format(u', '.join(self.factory.protocols)))
+            else:
+                # assume wamp.2.json
+                serializerId = u'json'
+        else:
+            version, serializerId = parseSubprotocolIdentifier(response.protocol)
+
+        self._serializer = self.factory._serializers[serializerId]
+
+
+class WampWebSocketFactory(object):
+    """
+    Base class for WAMP-over-WebSocket transport factory mixins.
+    """
+
+    def __init__(self, factory, serializers=None):
+        """
+        Ctor.
+
+        :param factory: A callable that produces instances that implement
+           :class:`autobahn.wamp.interfaces.ITransportHandler`
+        :type factory: callable
+
+        :param serializers: A list of WAMP serializers to use (or None for default
+           serializers). Serializers must implement
+           :class:`autobahn.wamp.interfaces.ISerializer`.
+        :type serializers: list
+        """
+        if callable(factory):
+            self._factory = factory
+        else:
+            self._factory = lambda: factory
+
+        if serializers is None:
+            serializers = []
+
+            # try CBOR WAMP serializer
+            try:
+                from autobahn.wamp.serializer import CBORSerializer
+                serializers.append(CBORSerializer(batched=True))
+                serializers.append(CBORSerializer())
+            except ImportError:
+                pass
+
+            # try MsgPack WAMP serializer
+            try:
+                from autobahn.wamp.serializer import MsgPackSerializer
+                serializers.append(MsgPackSerializer(batched=True))
+                serializers.append(MsgPackSerializer())
+            except ImportError:
+                pass
+
+            # try UBJSON WAMP serializer
+            try:
+                from autobahn.wamp.serializer import UBJSONSerializer
+                serializers.append(UBJSONSerializer(batched=True))
+                serializers.append(UBJSONSerializer())
+            except ImportError:
+                pass
+
+            # try JSON WAMP serializer
+            try:
+                from autobahn.wamp.serializer import JsonSerializer
+                serializers.append(JsonSerializer(batched=True))
+                serializers.append(JsonSerializer())
+            except ImportError:
+                pass
+
+            if not serializers:
+                raise Exception(u'Could not import any WAMP serializer')
+
+        self._serializers = {}
+        for ser in serializers:
+            self._serializers[ser.SERIALIZER_ID] = ser
+
+        self._protocols = [u'wamp.2.{}'.format(ser.SERIALIZER_ID) for ser in serializers]
+
+
+class WampWebSocketServerFactory(WampWebSocketFactory):
+    """
+    Mixin for WAMP-over-WebSocket server transport factories.
+    """
+
+
+class WampWebSocketClientFactory(WampWebSocketFactory):
+    """
+    Mixin for WAMP-over-WebSocket client transport factories.
+    """