TypeError: unhashable type

[rmkinkaid@…]

How to Reproduce

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

(please provide additional details here)

Request parameters:

{}

User agent: #USER_AGENT#

System Information

System information not available

Enabled Plugins

Plugin information not available

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 513, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 200, in dispatch
    chosen_handler)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 346, in _pre_process_request
    chosen_handler = filter_.pre_process_request(req, chosen_handler)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 330, in pre_process_request
    repo = self.get_repository(reponame)
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 503, in get_repository
    repoinfo = self.get_all_repositories().get(reponame, {})
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 571, in get_all_repositories
    for reponame, info in provider.get_repositories() or []:
  File "/usr/lib/python2.4/site-packages/trac/versioncontrol/api.py", line 120, in get_repositories
    repos.setdefault(id, {})[name] = value
TypeError: unhashable type

System Information: Trac 0.12 Genshi 0.6 mod_python 3.2.8 MySQL server: "5.0.77", client: "5.0.77", thread-safe: 1 MySQLdb 1.2.1 Python 2.4.3 (#1, Sep 8 2010, 11:38:44) [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] setuptools 0.6c7 Subversion 1.6.13 (r1002816)

I followed this walk through but substituted MySQL for sqllite: ​http://trac.edgewall.org/wiki/TracOnRHEL Not sure but it seems more of a permissions or authentication, I did follow the tutorial on Authentication: ​http://trac.edgewall.org/wiki/TracCgi#AddingAuthentication I was also trying to make sense of this tutorial ​http://trac.edgewall.org/wiki/TracFineGrainedPermissions

I put all the required things in my httpd.conf and my trac.conf

[Christian Boos]

It seems MySQLdb 1.2.1 is to blame here, see duplicate #7481 and others.

And please have a look at MySqlDb, we advise to use MySQLdb 1.2.2 at minimum.

[Christian Boos]

Duplicate, actually.