With current versions of mercurial, trac, and trac-mercurial-plugin on Fedora 12, clicking on a changeset link in the repository browser (ie. click "Browse Source" in the top navigation bar in the Trac web interface, and click on any link in the "Rev" column of the resulting page) will result in this error: Trac detected an internal error: TypeError: walkchangerevs() takes exactly 4 arguments (5 given) Tested on F12 using: mercurial-1.5-2.fc12.x86_64 trac-0.11.6-1.fc12.noarch trac-mercurial-plugin-0.11.0.8-1.20100113svn8646.fc12.noarch Updating to at least svn 8768 of the trac Mercurial plugin (http://trac.edgewall.org/wiki/TracMercurial) should resolve the issue; the get_history() patch to backend.py to work with Mercurial 1.4pre+ was backported to plugin version 0.11 in that svn revision. However, updating to head for the plugin would pull in the fix for upstream bug http://trac.edgewall.org/ticket/8891 as well.
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc13 has been submitted as an update for Fedora 13. http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc13
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc12
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc11
That fixed it (on F12). Much appreciated!
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc11 has been pushed to the Fedora 11 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update trac-mercurial-plugin'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc11
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc13 has been pushed to the Fedora 13 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update trac-mercurial-plugin'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc13
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update trac-mercurial-plugin'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc12
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc13 has been pushed to the Fedora 13 stable repository. If problems still persist, please make note of it in this bug report.
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.
trac-mercurial-plugin-0.11.0.8-1.20100319svn9372.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.