Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/MoinMoin/request.py", line 1105, in run
    self.page.send_page(self, count_hit=1)
  File "/usr/lib/python2.4/site-packages/MoinMoin/Page.py", line 1172, in send_page
    request.user.addTrail(self.page_name)
  File "/usr/lib/python2.4/site-packages/MoinMoin/user.py", line 835, in addTrail
    if not (page.exists() and
  File "/usr/lib/python2.4/site-packages/MoinMoin/security.py", line 52, in <lambda>
    return lambda pagename, Page=Page, request=request, attr=attr: Page(request, pagename).getACL(request).may(request, self.name, attr)
  File "/usr/lib/python2.4/site-packages/MoinMoin/wikiacl.py", line 184, in may
    is_group_member = request.dicts.has_member
  File "/usr/lib/python2.4/site-packages/MoinMoin/request.py", line 227, in getDicts
    dicts.scandicts()
  File "/usr/lib/python2.4/site-packages/MoinMoin/wikidicts.py", line 403, in scandicts
    cache.update(pickle.dumps(data, PICKLE_PROTOCOL))
PicklingError: Can't pickle <type 'function'>: attribute lookup __builtin__.function failed

Additionally cgitb raised this exception:
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/MoinMoin/failure.py", line 143, in handle
    handler.handle()
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 566, in handle
    doc = view.format(formatter, self.context)
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 343, in format
    return formatter.section(self.formatContent(), {'class': 'cgitb'})
  File "/usr/lib/python2.4/site-packages/MoinMoin/failure.py", line 32, in formatContent
    content = (
  File "/usr/lib/python2.4/site-packages/MoinMoin/failure.py", line 82, in formatDebugInfo
    info = [self.debugInfoHideScript(),
  File "/usr/lib/python2.4/site-packages/MoinMoin/failure.py", line 96, in formatTraceback
    return self.formatAllTracebacks(self.formatOneTraceback)
  File "/usr/lib/python2.4/site-packages/MoinMoin/failure.py", line 108, in formatAllTracebacks
    tracebacks.append(formatFuction((type, value, tb)))
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 421, in formatOneTraceback
    output = [self.formatter.subTitle('Traceback'),
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 434, in tracebackFrames
    frames.append(frame.format(self.formatter))
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 197, in format
    vars, highlight = self.scan()
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 286, in scan
    vars = self.scanVariables(reader)
  File "/usr/lib/python2.4/site-packages/MoinMoin/support/cgitb.py", line 298, in scanVariables
    value = getattr(parent, token, __UNDEF__)
  File "/usr/lib/python2.4/site-packages/MoinMoin/request.py", line 227, in getDicts
    dicts.scandicts()
  File "/usr/lib/python2.4/site-packages/MoinMoin/wikidicts.py", line 403, in scandicts
    cache.update(pickle.dumps(data, PICKLE_PROTOCOL))
PicklingError: Can't pickle <type 'function'>: attribute lookup __builtin__.function failed