Dear Maintainer,
I have upgraded a server to bookworm.  On this server trac has been running
fine since before buster with the package installed from unstable.
After upgrading to bookworm the trac webpage reported:

Internal Server Error
TracError: InvalidVersion: Invalid version: '3.5.0-git20211031.e6458ec-1-b1'

This "Invalid version" seems to be from libapache2-mod-python, so I rebuilt
this package after changing the version to a purely numeric version number (3.5.0.1-1).
While rebuilding libapache2-mod-python, I saw this message during configure:
checking for --with-python... /usr/bin/python3
checking Python version...   File "<string>", line 1
import sys; print({}.{}.format(*sys.version_info))
 ^
SyntaxError: invalid syntax

The package builds fine (but can not be built twice from the same source
dir), however, and after installing version 3.5.0.1-1, trac is working fine
again.  While there seems to be a problem with libapache2-mod-python, I
don't think that the version number is invalid, the changelog says: "New
upstream git snapshot, upstream no longer cuts releases", so the version
check somewhere in trac should be adjusted.

Thanks for maintaining trac, I can't wait to see version 1.6 ;-)
Christian

Hi,

This issue happens with 1.6-1 from sid on a bookworm system.  It can be
fixed installing libapache2-mod-python from sid (3.5.0.1-1) too.

Cheers


      EnekoLacunza

Director Técnico | Zuzendari teknikoa

Binovo IT Human Project

	943 569 206 <tel:943 569 206>

	elacunza@binovo.es <mailto:elacunza@binovo.es>

	binovo.es <//binovo.es>

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Hi,

I am running into this same issue after dist upgrading from buster to
bullseye then bookworm today. The trac package of bookworm-backports is
broken. Building the trac package from buster on bookworm is not an
option, because bookworm no longer provides the old python packages from
buster. I do need to get trac up and running after the upgrade. What
packages do I need to backport manually from testing to make the
bookworm-backports trac package work on bookworm or will the backport
get fixed. Thank you.

Regards,

Maybe it is broken when used with Apache?
In my job, we use Trac with nginx and gunicorn.
Maybe that is a possible workaround for you, too?