Reverse for '"server_list"' with arguments '()' and keyword arguments '{}' not found. about binder HOT 4 OPEN

ii  python-bs4                         4.1.0-1                       all          error-tolerant HTML parser for Python
ii  python-django                      1.4.5-1+deb7u9                all          High-level Python web development framework
ii  python-dnspython                   1.10.0-1                      all          DNS toolkit for Python
ii  python-flup                        1.0.2-2                       all          Implements Python Web Server Gateway Interface (WSGI)
ii  python-sqlite                      1.0.1-9                       amd64        Python interface to SQLite 2

apt-get purge python-django
pip install django