So I did the latest mailman upgrades within my venv (per the instructions got from Brian Carpenter when he installed it for me) to the latest version. I had a strange CPU pegging issue that turned out to be mailman struggling with a malformed message but in the process of debugging that I downgraded to the previous mailman release.

The resulted in a broken web interface.

Today, while debugging, I did a pip install --upgrade of all the components as listed in a previous thread. Now none of the mailman3 processes will start.

Doing a bin/mailman-post-update results in the error message below, which are consistent with the issues I saw earlier when trying to access the web interface.

Anyone got a solution to this?

I suspect it’s something simple, but django is just not my area of expertise.

Thanks!

• Mark

mark@pdc-racing.net | 408-348-2878

———

(venv) mailman@mail:/opt/mailman/mm/bin$ ./mailman-post-update

• '[' False == False ']'
• mkdir -p /opt/mailman/mm/static
• /opt/mailman/mm/bin/django-admin collectstatic --clear --noinput --verbosity 0
• /opt/mailman/mm/bin/django-admin compress Traceback (most recent call last): File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/utils.py", line 66, in __getitem__ return self._engines[alias] KeyError: 'django'

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/backends/django.py", line 121, in get_package_libraries module = import_module(entry[1]) File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", line 991, in _find_and_load File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 671, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 783, in exec_module File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/contrib/admin/templatetags/admin_static.py", line 5, in <module> from django.utils.deprecation import RemovedInDjango30Warning ImportError: cannot import name 'RemovedInDjango30Warning' from 'django.utils.deprecation' (/opt/mailman/mm/venv/lib/python3.8/site-packages/django/utils/deprecation.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/opt/mailman/mm/venv/bin/django-admin", line 8, in <module> sys.exit(execute_from_command_line()) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line utility.execute() File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 395, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/core/management/base.py", line 328, in run_from_argv self.execute(*args, **cmd_options) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/core/management/base.py", line 369, in execute output = self.handle(*args, **options) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/compressor/management/commands/compress.py", line 277, in handle self.handle_inner(**options) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/compressor/management/commands/compress.py", line 300, in handle_inner offline_manifest, block_count, results = self.compress(engine, extensions, verbosity, follow_links, log) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/compressor/management/commands/compress.py", line 100, in compress if not self.get_loaders(): File "/opt/mailman/mm/venv/lib/python3.8/site-packages/compressor/management/commands/compress.py", line 50, in get_loaders for e in engines.all(): File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/utils.py", line 90, in all return [self[alias] for alias in self] File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/utils.py", line 90, in <listcomp> return [self[alias] for alias in self] File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/utils.py", line 81, in __getitem__ engine = engine_cls(params) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/backends/django.py", line 25, in __init__ options['libraries'] = self.get_templatetag_libraries(libraries) File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/backends/django.py", line 43, in get_templatetag_libraries libraries = get_installed_libraries() File "/opt/mailman/mm/venv/lib/python3.8/site-packages/django/template/backends/django.py", line 108, in get_installed_libraries for name in get_package_libraries(pkg): File "/opt/mailman/mm/venv/lib/python3.8/site-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 'django.contrib.admin.templatetags.admin_static': cannot import name 'RemovedInDjango30Warning' from 'django.utils.deprecation' (/opt/mailman/mm/venv/lib/python3.8/site-packages/django/utils/deprecation.py)