Watch ticket: TypeError: 'set' object does not support indexing

[massimo.b@…]

This is trac-1.0.4 with following plugins:

Enabled Plugins:
acct-mgr.admin 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/admin.pyc
acct-mgr.api 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/api.pyc
acct-mgr.db 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/db.pyc
acct-mgr.htfile 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/htfile.pyc
acct-mgr.http 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/http.pyc
acct-mgr.macros 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/macros.pyc
acct-mgr.notification 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/notification.pyc
acct-mgr.pwhash 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/pwhash.pyc
acct-mgr.register 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/register.pyc
acct-mgr.svnserve 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/svnserve.pyc
acct-mgr.web-ui 	N/A 	/usr/lib64/python2.7/site-packages/acct_mgr/web_ui.pyc
RoadmapHours 	0.5 	/mnt/data/trac/projects/A/plugins/RoadmapHours-0.5-py2.7.egg
SimpleMultiProject 	0.0.4dev-r14359 	/mnt/data/trac/projects/A/plugins/SimpleMultiProject-0.0.4dev_r14359-py2.7.egg
timingandestimationplugin 	1.4.6b0 	/mnt/data/trac/projects/A/plugins/timingandestimationplugin-1.4.6b-py2.7.egg
TracAutocompleteUsersPlugin 	0.4.3dev-r14213 	/mnt/data/trac/projects/A/plugins/TracAutocompleteUsersPlugin-0.4.3dev_r14213-py2.7.egg
TracDiscussion 	0.9dev-r14140 	/mnt/data/trac/projects/A/plugins/TracDiscussion-0.9dev_r14140-py2.7.egg
TracFullBlogPlugin 	0.1.1.post0 	/mnt/data/trac/projects/A/plugins/TracFullBlogPlugin-0.1.1_r0-py2.7.egg
TracGanttCalendarPlugin 	0.6.4.post859 	/mnt/data/trac/projects/A/plugins/TracGanttCalendarPlugin-0.6.4_r859-py2.7.egg
TracMasterTickets 	3.0.5dev-r14323 	/mnt/data/trac/projects/A/plugins/TracMasterTickets-3.0.5dev_r14323-py2.7.egg
TracWatchlistPlugin 	1.0.1 	/mnt/data/trac/projects/A/plugins/TracWatchlistPlugin-1.0.1-patched_py2.7.egg
TracWikiExtras 	1.0dev-r14316 	/mnt/data/trac/projects/A/plugins/TracWikiExtras-1.0dev_r14316-py2.7.egg
TracWorkflowAdmin 	0.12.0.2 	/mnt/data/trac/projects/A/plugins/TracWorkflowAdmin-0.12.0.2-py2.7.egg
WikiAutoComplete 	1.0 	/mnt/data/trac/projects/A/plugins/WikiAutoComplete-1.0-py2.7.egg
WorkLog 	0.4dev-r13835 	/mnt/data/trac/projects/A/plugins/WorkLog-0.4dev_r13835-py2.7.egg

Using the Watch button on a ticket I get the Internal Error: TypeError: 'set' object does not support indexing

Python Traceback Most recent call last:

    File "/usr/lib64/python2.7/site-packages/trac/web/main.py", line 513, in _dispatch_request
    File "/usr/lib64/python2.7/site-packages/trac/web/main.py", line 222, in dispatch
    File "build/bdist.linux-x86_64/egg/tracwatchlist/plugin.py", line 534, in process_request

[Jun Omae]

It seems this issue probably would be fixed by the following patch.

watchlistplugin/0.12/tracwatchlist/plugin.py

@@ -531 +531 @@
                     self.set_notify(req, realm, res)
                 db.commit()
             if redirectback and len(new_res) == 1:
-                req.redirect(req.href(realm,new_res[0]))
+                req.redirect(req.href(realm, new_res.pop()))
             action = 'view'
 
         elif action == "unwatch":

[massimo.b@…]

Right, that patch solved it.

[Ryan J Ollos]

In 14701:

1.0.2: Fixes error indexing a set. Fixes #12267.

Patch by Jun Omae. Fix confirmed by massimo.b@….