[Pkg-mailman-hackers] Bug#1008929: ModuleNotFoundError: No module named 'mistune.plugins'; 'mistune' is not a package

[Colin Turner]

Package: python3-django-hyperkitty
Version: 1.3.5.0-2
Severity: normal

Dear Maintainer,

Thanks for your work on this package. After the most recent upgrade to the version above, which also brought in python3-mistune as below, I am unfortunately finding my inbox flooded by cron errors, to the extent that I disabled "by minute" cron jobs. I'm not really sure why since mistune is installed. I have tried restarting the mailman3-web service but to no avail.

Traceback as below:

Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/django/template/backends/django.py", line 121, in get_package_libraries
module = import_module(entry[1])
File "/usr/lib/python3.9/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 850, in exec_module
File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
File "/usr/lib/python3/dist-packages/hyperkitty/templatetags/decorate.py", line 4, in <module>
from hyperkitty.lib.renderer import markdown_renderer, text_renderer
File "/usr/lib/python3/dist-packages/hyperkitty/lib/renderer.py", line 6, in <module>
from mistune.plugins.extra import plugin_url
ModuleNotFoundError: No module named 'mistune.plugins'; 'mistune' is not a package

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/share/mailman3-web/manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/lib/python3/dist-packages/django/core/management/__init__.py", line 419, in execute_from_command_line
utility.execute()
File "/usr/lib/python3/dist-packages/django/core/management/__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 393, in execute
self.check()
File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 419, in check
all_issues = checks.run_checks(
File "/usr/lib/python3/dist-packages/django/core/checks/registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "/usr/lib/python3/dist-packages/django/contrib/admin/checks.py", line 78, in check_dependencies
for engine in engines.all():
File "/usr/lib/python3/dist-packages/django/template/utils.py", line 90, in all
return [self[alias] for alias in self]
File "/usr/lib/python3/dist-packages/django/template/utils.py", line 90, in <listcomp>
return [self[alias] for alias in self]
File "/usr/lib/python3/dist-packages/django/template/utils.py", line 81, in __getitem__
engine = engine_cls(params)
File "/usr/lib/python3/dist-packages/django/template/backends/django.py", line 25, in __init__
options['libraries'] = self.get_templatetag_libraries(libraries)
File "/usr/lib/python3/dist-packages/django/template/backends/django.py", line 43, in get_templatetag_libraries
libraries = get_installed_libraries()
File "/usr/lib/python3/dist-packages/django/template/backends/django.py", line 108, in get_installed_libraries
for name in get_package_libraries(pkg):
File "/usr/lib/python3/dist-packages/django/template/backends/django.py", line 123, in get_package_libraries
raise InvalidTemplateLibrary(
django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportError raised when trying to load 'hyperkitty.templatetags.decorate': No module named 'mistune.plugins'; 'mistune' is not a package

A similar error is occuring on web access causing a 500 HTTP Error.

Kind regards,

CT.


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 5.16.0-3-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages python3-django-hyperkitty depends on:
ii  fonts-glyphicons-halflings   1.009~3.4.1+dfsg-2
ii  libjs-bootstrap4             4.6.1+dfsg1-1
ii  libjs-sphinxdoc              4.3.2-1
ii  python3                      3.9.8-1
ii  python3-dateutil             2.8.1-6
ii  python3-django               2:3.2.12-2
ii  python3-django-compressor    2.4.1-2
ii  python3-django-extensions    3.1.5-2
ii  python3-django-gravatar2     1.4.4-2
ii  python3-django-haystack      3.1.1-1
ii  python3-django-mailman3      1.3.7-1
ii  python3-django-q             1.3.9-3
ii  python3-djangorestframework  3.12.4-2.1
ii  python3-elasticsearch        7.16.2-1
ii  python3-flufl.lock           5.0.1-1
ii  python3-mailmanclient        3.3.3-1
ii  python3-mistune              2.0.0-1+really0.8.4-1
ii  python3-networkx             2.5+ds-2
ii  python3-robot-detection      0.4.0-2
ii  python3-tz                   2022.1-1

Versions of packages python3-django-hyperkitty recommends:
ii  mailman3-web  0+20200530-2

python3-django-hyperkitty suggests no packages.

-- no debconf information