TracNavHider crashes my server

[hanno.stock@…]

When I install the TracNavHider egg in /usr/lib/python2.3/site-packages, my server (apache2, using mod_python) crashes, when I want to access trac.

Traceback: [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: Traceback (most recent call last): [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/mod_python/apache.py", line 299, in HandlerDispatch\n result = object(req) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/web/modpython_frontend.py", line 87, in handler\n gateway.run(dispatch_request) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/web/wsgi.py", line 87, in run\n response = application(self.environ, self._start_response) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 346, in dispatch_request\n env = _open_environment(env_path, run_once=environwsgi.run_once?) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/web/main.py", line 57, in _open_environment\n env_cache[env_path] = open_environment(env_path) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/env.py", line 433, in open_environment\n env = Environment(env_path) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/env.py", line 121, in init\n load_components(self) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/trac/loader.py", line 101, in load_components\n entry_point.load() [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "/usr/lib/python2.3/site-packages/pkg_resources.py", line 1830, in load\n entry = import(self.module_name, globals(),globals(), __name__?) [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: File "build/bdist.linux-i686/egg/navhider/filter.py", line 6, in ? [Sat Nov 25 14:59:14 2006] [error] [client 192.168.30.170] PythonHandler trac.web.modpython_frontend: NameError: name 'set' is not defined