[Mon Nov 29 15:21:39 2010] [error] 15:21:39 Trac[main] ERROR: Internal Server Error: 
[Mon Nov 29 15:21:39 2010] [error] Traceback (most recent call last):
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 511, in _dispatch_request
[Mon Nov 29 15:21:39 2010] [error]     dispatcher.dispatch(req)
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 237, in dispatch
[Mon Nov 29 15:21:39 2010] [error]     resp = chosen_handler.process_request(req)
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/TracMetrixPlugin-0.1.8-py2.6.egg/tracmetrixplugin/web_ui.py", line 181, in process_request
[Mon Nov 29 15:21:39 2010] [error]     return self._render_view(req, db)
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/TracMetrixPlugin-0.1.8-py2.6.egg/tracmetrixplugin/web_ui.py", line 243, in _render_view
[Mon Nov 29 15:21:39 2010] [error]     tkt_group_metrics = TicketGroupMetrics(self.env, project_tickets)
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/TracMetrixPlugin-0.1.8-py2.6.egg/tracmetrixplugin/model.py", line 220, in __init__
[Mon Nov 29 15:21:39 2010] [error]     self.ticket_metrics = [TicketMetrics(env,ticket) for ticket in self.tickets ]
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/TracMetrixPlugin-0.1.8-py2.6.egg/tracmetrixplugin/model.py", line 490, in __init__
[Mon Nov 29 15:21:39 2010] [error]     self.__collect_history_data(ticket)
[Mon Nov 29 15:21:39 2010] [error]   File "/usr/lib/python2.6/site-packages/TracMetrixPlugin-0.1.8-py2.6.egg/tracmetrixplugin/model.py", line 536, in __collect_history_data
[Mon Nov 29 15:21:39 2010] [error]     self.closed_time = self.closed_time + self.__inseconds(datetime.now(utc) - previous_status_change)
[Mon Nov 29 15:21:39 2010] [error] AttributeError: 'module' object has no attribute 'now'