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

[admin]

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 (X11; Linux x86_64; rv:10.0.7) Gecko/20120829 Firefox/10.0.7

System Information

Trac	0.12.3
Babel	0.9.6
Docutils	0.6
Genshi	0.6
MySQL	server: "5.1.61", client: "5.1.61", thread-safe: 1
MySQLdb	1.2.3
Pygments	1.1.1
Python	2.6.6 (r266:84292, Jun 18 2012, 14:18:47) [GCC 4.4.6 20110731 (Red Hat 4.4.6-3)]
pytz	2010h
setuptools	0.6c11
Subversion	1.6.11 (r934486)
jQuery	1.4.4

Enabled Plugins

IniAdmin	0.2-r10454
SvnAuthzAdminPlugin	0.1.2.-Moved.to.Trac.0.11-
TracAccountManager	0.3.2
TracDateField	1.1.0-r11277
TracGanttCalendarPlugin	0.6.2
TracWysiwyg	0.10.0.4-r11158

Python Traceback

Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 522, in _dispatch_request
    dispatcher.dispatch(req)
  File "build/bdist.linux-x86_64/egg/trac/web/main.py", line 243, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-x86_64/egg/trac/admin/web_ui.py", line 117, in process_request
    path_info)
  File "/usr/lib/python2.6/site-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/lib/python2.6/site-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/lib/python2.6/site-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''

[Christian Boos]

PluginIssue (​TH:SvnAuthzAdminPlugin).