Trace back while attempting to access Burndown page

[mike@…]

Having tried to set the plugin up, we added the custom fields but when going to the burndown page we get the traceback below. Running the burndown_job.py also seems to do nothing (the burndown table remains empty).

Oops...
Trac detected an internal error:

iteration over non-sequence

If you think this really should work and you can reproduce it. Then you should consider to report this problem to the Trac team.

Go to http://trac.edgewall.com/ and create a new ticket where you describe the problem, how to reproduce it. Don't forget to include the python traceback found below.

TracGuide — The Trac User and Administration Guide
Python traceback

Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/web/cgi_frontend.py", line 131, in run
    dispatch_request(req.path_info, req, env)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 139, in dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 107, in dispatch
    resp = chosen_handler.process_request(req)
  File "build/bdist.linux-x86_64/egg/burndown/burndown.py", line 113, in process_request
TypeError: iteration over non-sequence

[mike@…]

Sorry, I should have also mentioned this is using TRAC 0.9.3 from Ubuntu Dapper, patched using ​http://steffenpingel.de/patches/trac/trac-time-tracking-0.9.3.diff

[mike@…]

Patch to fix #554, #565, and #566 includes patch from #503 as well

[Sam Bloomquist]

(In [1122]) Applied patch submitted by mike@…. fixes #554, #565, #566