tried to build a tag list of the logged in user

application/templates/base.html

                     <li class="nav-item">
                         <a class="nav-link" href="{% url 'admin:index' %}">Administration</a>
                     </li>
+                    <li>
+                        <a class="nav-link" href="{% url 'post_list' %}">Dashboard</a>
+                    </li>
+                    <li class="nav-item">
+                        <a class="nav-link" href="{% url 'student_page' %}">Studentenansicht</a>
+                    </li>
                     {% elif user.is_staff %}
                     <li class="nav-item">
                         <a class="nav-link" href="{% url 'logout' %}">Administration</a>
                     </li>
+
+                    <li class="nav-item">
+                        <a class="nav-link" href="{% url 'post_list' %}">Dashboard</a>
+                    </li>
                     {% else %}
                     <li class="nav-item">
                         <a class="nav-link" href="{% url 'student_page' %}">{{user.get_username}}'s Dashboard</a>
                             <li>
                                 <form class="form" role="form" method="post" action="{% url 'login' %}" accept-charset="UTF-8" id="login-nav">
                                     {% csrf_token %} {% if next %}
-                                    <input type="hidden" name="next" value="{{ next }}" /> 
-                                    {% endif %}
+                                    <input type="hidden" name="next" value="{{ next }}" /> {% endif %}
                                     <div class="form-group">
                                         <label class="sr-only" for="username">Benutzername</label>
                                         <input type="text" class="form-control" id="username" name="username" placeholder="Benutzername" required>
         <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
         <script src="{% static 'bootstrap/js/jquery-1.11.1.js' %} "></script>
         <script src="{% static 'bootstrap/jsjquery.tagcanvas.min.js' %} " type="text/javascript"></script>
-        <script src="{% static 'js/app.js' %}"></script>   
+        <script src="{% static 'js/app.js' %}"></script>
         <script src="{% static 'bootstrap/js/bootstrap.bundle.js' %}"></script>
     </body>
 

application/templates/post_list.html

 {% extends 'base.html' %} {% block content %} 
 {% if tag %} Posts tagged with "{{ tag.name }}" {% endif %} 
-{% for post in posts %} {% load taggit_templatetags2_tags %}
+{% for post in posts %}
 <div class="post">
     <div class="date">
         {{ post.published_date }}

application/templates/tag_list.html

+{% extends "base.html" %} {% block content %} {% load taggit_templatetags2_tags %} 
+{% get_taglist as tags for 'application.customuser'%}
+
+
+<div id="">
+    Your tags:
+    <ul>
+        {% for tag in tags %}
+        <li>
+            <a href="{% url 'post_list_by_tag' tag.slug %}">{{ tag }}</a>
+        </li>
+        {% endfor %}
+    </ul>
+</div>
+<div>
+    {{ tags }} {{ u }}
+</div>
+<div>
+     from List: {% for tag in tags %} 
+
+     {% for tag in posts %}
+    <p>{{ tag.name }} </p>{% endfor %}{% endfor %}
+
+</div>
+{% endblock %}

application/urls.py

 urlpatterns = [
     url(r'^$', views.post_list, name='post_list'),
     url(r'^tag/(?P<slug>[-\w]+)/$', views.post_list, name='post_list_by_tag'),
+    url(r'^taglist/$', views.tag_list, name='tag_list'),
+    url(r'^taglist/(?P<slug>[-\w]+)/$', views.post_list, name='post_list_by_tag'),
     url(r'^student/', views.student_page, name='student_page'),
     url(r'^search/', views.blog_search_list_view, name='blog_search_list_view'),
     url(r'^post/(?P<pk>\d+)/$', views.post_detail, name='post_detail'),

application/views.py

 from django.contrib.auth import authenticate, login, logout
 from django.db.models import Q
 import sys
+import collections
 from taggit_templatetags2.views import TagCanvasListView
 
 import logging
 
 @login_required
 def student_page(request):
-    user_instance = CustomUser.objects.get(user=request.user)
+    user_instance = get_object_or_404(CustomUser, user=request.user)
     if request.method == "POST":
         form = NewTagForm(request.POST, instance=user_instance)
         if form.is_valid():
     
     return render(request, 'student_page.html', {'form':form})
 
-
+@login_required
+def tag_list(request):
+    u= CustomUser.objects.get(user=request.user)
+    tags= Tag.objects.filter(name=u)
+    return render(request, 'tag_list.html', locals())
     
 
 class TagSearch(TagCanvasListView):