ERROR    2010-11-21 01:14:19,904 dev_appserver.py:3251] Exception encountered handling request
Traceback (most recent call last):
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 3211, in _HandleRequest
    self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 3154, in _Dispatch
    base_env_dict=env_dict)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 527, in Dispatch
    base_env_dict=base_env_dict)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 2452, in Dispatch
    CGIDispatcher.Dispatch(self, *args, **kwargs)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 2404, in Dispatch
    self._module_dict)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 2441, in curried_exec_cgi
    return ExecuteCGI(*args, **kwargs)
  File "/home/gilles/wip/google_appengine/google/appengine/tools/dev_appserver.py", line 2312, in ExecuteCGI
    logging.debug('Executing CGI with env:\n%s', pprint.pformat(env))
  File "/usr/local/lib/python2.6/pprint.py", line 60, in pformat
    return PrettyPrinter(indent=indent, width=width, depth=depth).pformat(object)
  File "/usr/local/lib/python2.6/pprint.py", line 119, in pformat
    self._format(object, sio, 0, 0, {}, 0)
  File "/usr/local/lib/python2.6/pprint.py", line 137, in _format
    rep = self._repr(object, context, level - 1)
  File "/usr/local/lib/python2.6/pprint.py", line 230, in _repr
    self._depth, level)
  File "/usr/local/lib/python2.6/pprint.py", line 242, in format
    return _safe_repr(object, context, maxlevels, level)
  File "/usr/local/lib/python2.6/pprint.py", line 284, in _safe_repr
    for k, v in _sorted(object.items()):
  File "/usr/local/lib/python2.6/pprint.py", line 75, in _sorted
    with warnings.catch_warnings():
  File "/usr/local/lib/python2.6/warnings.py", line 333, in __init__
    self._module = sys.modules['warnings'] if module is None else module
KeyError: 'warnings'
INFO     2010-11-21 01:14:19,920 dev_appserver.py:3283] "GET /_ah/login HTTP/1.1" 500 -