Thanks. I did search the tickets at Edgewall, but somehow I didn't find
that one.
On Wednesday, January 29, 2020 at 5:13:57 PM UTC-6, RjOllos wrote:
>
>
>
> On Wed, Jan 29, 2020 at 3:12 PM Charles Bearden <cfbm...@gmail.com
> <javascript:>> 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
>
>
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