"ImportError: cannot import name utc" in trac-post-commit-hook

[rouven <rouven@…>]

Hi, it seems something is broken with the utc module. i don't know much about python, but this seems to be a missing module. i installed some python date modules like "Olson timezone database" for example, but this does not seem to work.

i am using debian etch with 0.10.3dev

cheers Rouven

[Christian Boos]

Well, the 0.10 branch doesn't use the utc module (did you mean ​pytz here?), the 0.11 branch does, however (optionally).

So could this error be caused by trying to use a 0.11 plugin in 0.10.3?

In any case, you should give us more information about the error you got, like a backtrace.

[anonymous]

well i fixed it for myself, it seems that i forgot to checkout the latest datefmt.py. this was the only problem i think.

rouven

[anonymous]

Just ran into this and here is the back trace. v0.10 running via upgrade from 0.9. upgraded code, db and docs, though i doubt the last one matters ;)

Traceback (most recent call last):

File "/usr/local/src/trac/contrib/trac-post-commit-hook", line 85, in ?

from trac.util.datefmt import utc

ImportError: cannot import name utc

[Christian Boos]

Replying to anonymous:

The contrib/trac-post-commit-hook must be of the same line of development as the Trac version you're using.

Here, you're using source:trunk/contrib/trac-post-commit-hook which is the milestone:0.11 compatible one, with a 0.10 installation.

Likewise, you're likely get similar issues when trying to run the source:branches/0.10-stable/contrib/trac-post-commit-hook​ with a 0.11 Trac.

[toby@…]

I tried the hook current when 0.10.4 was tagged (r5236) and it has the same problem.

utc is referenced all the way back to r4159: ​http://trac.edgewall.org/changeset?new=4159%40trunk%2Fcontrib%2Ftrac-post-commit-hook&old=3743%40trunk%2Fcontrib%2Ftrac-post-commit-hook

[Christian Boos]

Yes, that's normal. r5236 back to r4159 on trunk was already 0.11dev. You should have looked in the source:branches/0.10-stable​ or in source:tags for the matching release, but not in trunk.