IndexError: pop from empty list

[Rochi]

If I want to add an attachment to the ticket #9983 i get the following error:

Oops … Trac hat einen internen Fehler festgestellt:

IndexError: pop from empty list

Es ist ein interner Fehler aufgetreten. Bitte benachrichtigen Sie Ihren Trac-Administrator und fügen Sie eine Beschreibung an, wie der Fehler reproduziert werden kann.

Zu diesem Zweck können Sie auch ein Ticket .

Die Aktion, die den Fehler ausgelöst hat, war:

GET: /attachment/ticket/9983/

[Jun Omae]

This is a Genshi 0.6.1 and 0.7.0 issue. The workaround is to downgrade Genshi 0.6.0. See ​trac:#11184 and ​genshi:#566.

[Rochi]

OK, after read ​trac:#11184 I've found a workaround: I've switched the language from German to English. Now the Add attachment button works.

If the only working solution without the workaround above is to downgrade to Genshi 0.6, so only the !admin from trac-hacks.org can do that.

[Ryan J Ollos]

I've downgraded to Genshi 0.6.0 (with speedups).

I did not attempt to reproduce the issue before the downgrade, but after the downgrade I changed the language to German and was able to add an attachment to #9983. Please reopen the ticket if you experience the issue again.

Jun, thank you for investigating and providing a solution.

[Ryan J Ollos]

Somehow we are now running Genshi 0.6.1 (without speedups), and the issue has been reported again in comment:1:ticket:11289. Did someone reinstall Genshi?

[Michael Renzmann]

I, at least, didn't reinstall Genshi.

[Ryan J Ollos]

We had these files in site-packages:

Genshi-0.6-py2.6-linux-i686.egg
Genshi-0.6.1-py2.6-linux-i686.egg
Genshi-0.6.1-py2.6.egg

I'm not sure what happened here, but anyway, Genshi 0.6.0 (with speedups) is installed now.

I also installed the EmailProcessorMacro, having noticed that wasn't re-installed since the migration.

[falkb]

Thank you, I'll switch back to German and check what happens if I add an attachment next time.

[Ryan J Ollos]

Feel free to add an attachment to this ticket if you'd like to test here; I'll delete it afterwards.

[falkb]

yes it works :-)

[Ryan J Ollos]

Issue is documented in #11678 for testing that the issue is resolved before upgrading to Genshi 0.7.1 (not yet released).