trac internal error while browsing the demo site

[anonymous]

No action required, stack dump for your information. I just putzed around the demo site ​http://www.hosted-projects.com/trac/TracDemo/Demo/browser/trac/scripts Just happily clicking around, nothing special, except perhaps I am on my laptop which is twitchy and generates spurious mouse events due to oversensitive mousepad.

            Oops…
            Trac detected an internal error: 

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 356, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 224, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/web_ui/browser.py", line 95, in process_request
    repos = self.env.get_repository(req.authname)
  File "/usr/lib/python2.4/site-packages/trac/env.py", line 194, in get_repository
    return RepositoryManager(self).get_repository(authname)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 73, in get_repository
    self.repository_dir, authname)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 262, in get_repository
    repos = SubversionRepository(dir, authz, self.log)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 279, in __init__
    self.pool = Pool()
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/svn_fs.py", line 158, in __init__
    self._pool = core.svn_pool_create(self._parent_pool())
  File "svn/core.py", line 177, in svn_pool_create
  File "libsvn/core.py", line 661, in svn_pool_create
  File "libsvn/core.py", line 2497, in _wrap
  File "libsvn/core.py", line 2410, in set_parent_pool
  File "libsvn/core.py", line 2398, in <lambda>
  File "libsvn/core.py", line 22, in _swig_setattr
  File "libsvn/core.py", line 17, in _swig_setattr_nondynamic
RuntimeError: instance.__dict__ not accessible in restricted mode

[Christian Boos]

Duplicate of #3371.