On Wed, Jan 29, 2020 at 3:12 PM Charles Bearden <[email protected]> wrote:
> Hi all,
>
> I'm working on creating a fresh up-to-date Trac install recipe for my
> department, and I encountered an exception with Jinja2 2.11.0 under Trac
> 1.4. I wanted to run this problem by the list before logging a ticket.
>
> Ubuntu 18.04
> Python 2.7.17 virtualenv
> Installing newest version of all prerequisites with pip
>
> When I run the server via tracd, the main page displays correctly, but
> when I click Timeline, Roadmap, View Tickets, or Search, only part of the
> page source is returned (nothing renderable by the browser) and an
> exception appears in the trac.log:
>
> 2020-01-29 16:22:41,020 Trac[chrome] ERROR: Jinja2 UndefinedError error
> while rendering XML/HTML template
> Traceback (most recent call last):
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/trac/web/chrome.py",
> line 1704, in _iterable_jinja_content
> for chunk in stream:
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/environment.py",
> line 1357, in __next__
> return self._next()
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/environment.py",
> line 1334, in _buffered_generator
> c = next(self._gen)
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/environment.py",
> line 1125, in generate
> yield self.environment.handle_exception()
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/environment.py",
> line 832, in handle_exception
> reraise(*rewrite_traceback_stack(source=source))
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/trac/timeline/templates/timeline.html",
> line 12, in top-level template code
> # extends 'layout.html'
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/trac/templates/layout.html",
> line 12, in top-level template code
> # import "macros.html" as jmacros with context
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/trac/templates/theme.html",
> line 22, in top-level template code
> # block body
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/trac/templates/theme.html",
> line 109, in block "body"
> # include resourcepath_template if resourcepath_template ignore missing
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/loaders.py",
> line 179, in get_source
> pieces = split_template_path(template)
> File
> "/path/to/projects/tmp/trac/venv2/local/lib/python2.7/site-packages/jinja2/loaders.py",
> line 28, in split_template_path
> for piece in template.split("/"):
> UndefinedError: the inline if-expression on line 109 in 'theme.html'
> evaluated to false and no else section was defined.
>
> When I pin Jinja2 to 2.10.3, the problem goes away. So, it seems like
> changes to Jinja2 from 2.10 to 2.11 cause this breakage.
>
> Anyone else seen this?
>
> All the best,
> Chuck Bearden
>
Yes, see:
https://trac.edgewall.org/ticket/13242
--
You received this message because you are subscribed to the Google Groups "Trac
Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/trac-users/CA%2BBGpn_gYGVxUv_hF_zdLySCtA-Ani6_%2BPKvemYUqWTugz2G%2Bw%40mail.gmail.com.
