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- """Execute exactly this copy of pip, within a different environment.
-
- This file is named as it is, to ensure that this module can't be imported via
- an import statement.
- """
-
- # /!\ This version compatibility check section must be Python 2 compatible. /!\
-
- import sys
-
- # Copied from setup.py
- PYTHON_REQUIRES = (3, 7)
-
-
- def version_str(version): # type: ignore
- return ".".join(str(v) for v in version)
-
-
- if sys.version_info[:2] < PYTHON_REQUIRES:
- raise SystemExit(
- "This version of pip does not support python {} (requires >={}).".format(
- version_str(sys.version_info[:2]), version_str(PYTHON_REQUIRES)
- )
- )
-
- # From here on, we can use Python 3 features, but the syntax must remain
- # Python 2 compatible.
-
- import runpy # noqa: E402
- from importlib.machinery import PathFinder # noqa: E402
- from os.path import dirname # noqa: E402
-
- PIP_SOURCES_ROOT = dirname(dirname(__file__))
-
-
- class PipImportRedirectingFinder:
- @classmethod
- def find_spec(self, fullname, path=None, target=None): # type: ignore
- if fullname != "pip":
- return None
-
- spec = PathFinder.find_spec(fullname, [PIP_SOURCES_ROOT], target)
- assert spec, (PIP_SOURCES_ROOT, fullname)
- return spec
-
-
- sys.meta_path.insert(0, PipImportRedirectingFinder())
-
- assert __name__ == "__main__", "Cannot run __pip-runner__.py as a non-main module"
- runpy.run_module("pip", run_name="__main__", alter_sys=True)
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