pybabel extractor: fails with {% with %} blocks

[curio77]

If {% with %} blocks are used in a template, the pybabel extractor will not yield any strings for the template.

Minimal example:

{% trans %}Test{% endtrans %}
{% with %}{% endwith %}

This will yield no translation strings. Removing the second line will ("Test").

Encountered with Python 2.7.1, jinja2 2.6, pybabel 0.9.6.

[curio77]

My fault; I hadn't realized that the with extension needs to be specified in mappings.cfg as well. Sorry about the noise.