I'm looking into upgrading "my" plugins to Trac 1.4 and (eventuallly) 1.6, testing the upgrades both on clean installations and on a clone of my production system with a lot of other plugins installed.
On the production clone I run into these log messages
.... Skipping ... ImportError: cannot import name TicketNotifyEmail
.... Skipping ... ImportError: cannot import name Context
I have set the log level to DEBUG, but that does not indicate where the import is attempted. The clean installations seem to work, so apparently the cause lies with two or more plugins being in conflict - but it is probable worth noticing that the production system has been online since 2013, so something could be hidden in the update history...
I have tried to disable any plugin that taste just a bit of tickets, but no luck so far.
My production system clone is Trac 1.2.5, upgraded to 1.4.3 as part of the test.
I have no clue where to continue the search. Any hint or pointer would be most appreciated.
Thanks in advance