IOError: [Errno 2] No such file or directory: u''

[fancs]

How to Reproduce

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

(please provide additional details here)

Request parameters:

{'cat_id': u'subversion', 'panel_id': u'svnauthz', 'path_info': None}

User agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.14 (KHTML, like Gecko) Chrome/10.0.603.3 Safari/534.14

System Information

Trac	0.12.2
Babel	0.9.5
Genshi	0.6
mod_python	3.3.1
Pygments	1.2.2
pysqlite	2.4.1
Python	2.6.5 (r265:79063, Apr 16 2010, 13:28:26) [GCC 4.4.3]
pytz	2010b
setuptools	0.6
SQLite	3.7.2
Subversion	1.6.6 (r40053)
jQuery	1.4.2

Enabled Plugins

IniAdmin	0.2
SvnAuthzAdminPlugin	0.1.2.-Moved.to.Trac.0.11-
timingandestimationplugin	1.0.9
TracAccountManager	0.3dev-r9785
TracWysiwyg	0.12.0.3-r9676

Python Traceback

Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.2-py2.6.egg/trac/web/main.py", line 511, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.2-py2.6.egg/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.12.2-py2.6.egg/trac/admin/web_ui.py", line 116, in process_request
    path_info)
  File "/usr/local/lib/python2.6/dist-packages/SvnAuthzAdminPlugin-0.1.2._Moved.to.Trac.0.11_-py2.6.egg/svnauthz/admin_ui.py", line 52, in render_admin_panel
    self.authz = self._get_model();
  File "/usr/local/lib/python2.6/dist-packages/SvnAuthzAdminPlugin-0.1.2._Moved.to.Trac.0.11_-py2.6.egg/svnauthz/admin_ui.py", line 389, in _get_model
    return r.read(self.authz_file)
  File "/usr/local/lib/python2.6/dist-packages/SvnAuthzAdminPlugin-0.1.2._Moved.to.Trac.0.11_-py2.6.egg/svnauthz/io.py", line 10, in read
    fp = open(filename, "r")
IOError: [Errno 2] No such file or directory: u''

[Remy Blank]

Duplicate of #10072.