Description of problem:
After upgrading trac from Extras and installing the now-required dependency
python-sqlite2 trac no longer works in a mod_python environment (500 Internal
Server Error).

Version-Release number of selected component (if applicable):
trac-0.10.3.1-1.fc6
python-sqlite2-2.3.2-2.fc6


How reproducible:
Always

Steps to Reproduce:
1. Have working installation before upgrade
2. Upgrade packages
  
Actual results:
500 Internal Server Error

Expected results:
Working trac.

Additional info:
The log entries in the error log (prefixes removed):
PythonHandler trac.web.modpython_frontend: Traceback (most recent call last):
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in
HandlerDispatch\n    result = object(req)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/web/modpython_frontend.py", line 87, in
handler\n    gateway.run(dispatch_request)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/web/wsgi.py", line 87, in run\n   
response = application(self.environ, self._start_response)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/web/main.py", line 377, in
dispatch_request\n    env = _open_environment(env_path, run_once=run_once)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/web/main.py", line 58, in
_open_environment\n    env_cache[env_path] = open_environment(env_path)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/env.py", line 435, in open_environment\n
   if env.needs_upgrade():
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/env.py", line 313, in needs_upgrade\n   
db = self.get_db_cnx()
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/env.py", line 182, in get_db_cnx\n   
return DatabaseManager(self).get_connection()
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/db/api.py", line 75, in get_connection\n
   return self._cnx_pool.get_cnx(self.timeout or None)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/db/pool.py", line 101, in get_cnx\n   
cnx = self._connector.get_connection(**self._kwargs)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 113, in
get_connection\n    return SQLiteConnection(path, params)
PythonHandler trac.web.modpython_frontend:   File
"/usr/lib/python2.4/site-packages/trac/db/sqlite_backend.py", line 160, in
__init__\n    timeout=timeout)
PythonHandler trac.web.modpython_frontend: SystemError: NULL result without
error in PyObject_Call

The last file mentioned makes clear that the problem is with the new
python-sqlite2 dependency. The problem can be temporarily fixed with
mv /usr/lib/python2.4/site-packages/pysqlite2/ .
and restarting httpd.

The mentioned code fragment distinguishes between python-sqlite 1 and 2 and
obviously it can work with both. Why has the version 2 dependency been added if
it obviously works without this?