AttributeError: 'NoneType' object has no attribute 'startswith'

[anonymous]

How to Reproduce

While doing a GET operation on /, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{}

User agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.122 Safari/534.30

System Information

System information not available

Enabled Plugins

Plugin information not available

Python Traceback

Traceback (most recent call last):
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/web/main.py", line 511, in _dispatch_request
    dispatcher.dispatch(req)
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/wiki/web_ui.py", line 120, in process_request
    req.perm(page.resource).require('WIKI_VIEW')
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/perm.py", line 575, in require
    if not self._has_permission(action, resource):
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/perm.py", line 567, in _has_permission
    check_permission(action, perm.username, resource, perm)
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/trac/perm.py", line 454, in check_permission
    perm)
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/tracopt/perm/authz_policy.py", line 147, in check_permission
    os.path.getmtime(self.get_authz_file()) > self.authz_mtime:
  File "/home/trac/env/lib/python2.6/site-packages/Trac-0.12.2-py2.6.egg/tracopt/perm/authz_policy.py", line 172, in get_authz_file
    return os.path.isabs(f) and f or os.path.join(self.env.path, f)
  File "/home/trac/env/lib/python2.6/posixpath.py", line 52, in isabs
    return s.startswith('/')
AttributeError: 'NoneType' object has no attribute 'startswith'

[Remy Blank]

You forgot to set the [authz_policy] authz_file option in trac.ini. Exception fixed in [10761].