File "/usr/lib/python2.4/site-packages/trac/web/modpython_frontend.py", line 206, in handler
dispatch_request(mpr.path_info, mpr, env)
File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 139, in dispatch_request
dispatcher.dispatch(req)
File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 107, in dispatch
resp = chosen_handler.process_request(req)
File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/changeset.py", line 87, in process_request
self._render_html(req, repos, chgset, diff_options)
File "build/bdist.linux-i686/egg/p4trac/p4trac.py", line 605, in _render_html
File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/changeset.py", line 156, in _render_html
previous_rev = repos.previous_rev(chgset.rev)
File "build/bdist.linux-i686/egg/p4trac/p4trac.py", line 213, in previous_rev