Am 2026-08-10 15:13, schrieb Stephen J. Turnbull:
Torsten writes:
> >> I have just nearly finished the migration of Mailman 3 from
> >> Debian packages to venv and mailman (master and runner) is up
> >> and running and uwsgi is also up and running.
It looks like you are trying to use the configuration files from
Debian with minimal or no changes.
If I were you I would
1. rsync -av /etc/mailman3 /tmp/ # if you don't have rsync, "cp -r"
2. purge (not just uninstall) all the Debian mailman packages
this should delete a lot of the stuff you just copied to /tmp
3. copy the configuration from Mailman's virtualenv install
instructions into /etc/mailman3
4. diff -r /etc/mailman3 /tmp/mailman3
5. make only essential changes you see in that diff (eg,
/opt/mailman/mm/var/web to /var/lib/mailman3/web), and see if
things work better
6. if things still don't work, make more adjustments.
Steve
Yes, that was my intention. But now I started from scratch, following
the documentation about Virtualenv installation at mailman3.org and also
created the config files with the defaults shown there (with a few
adjustments to match my installation).
Now, I have everything running as user mailman (had user list before for
mailman-core and www-data for mailman-web).
And the tracebacks have changed:
mailman throws this one:
2026-08-10 16:11:20 [FALCON] [ERROR] GET
/3.1/lists?advertised=true&count=0&page=1 => Traceback (most recent call
last):
File "/opt/mailman/venv/lib/python3.13/site-packages/falcon/app.py",
line 476, in __call__
process_resource(req, resp, resource, params)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/mailman/rest/wsgiapp.py",
line 65, in process_resource
raise HTTPUnauthorized(
~~~~~~~~~~~~~~~~^
'401 Unauthorized',
^^^^^^^^^^^^^^^^^^^
'REST API authorization failed',
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
challenges=[realm])
^^^^^^^^^^^^^^^^^^^
TypeError: HTTPUnauthorized.__init__() takes 1 positional argument but 3
positional arguments (and 1 keyword-only argument) were given
[10/Aug/2026:16:11:20 +0200] "GET
/3.1/lists?advertised=true&count=0&page=1 HTTP/1.1" 500 38 "-" "GNU
Mailman REST client v3.3.5"
and mailman-web this one:
ERROR 2026-08-10 14:11:20,011 1557501 postorius Un-handled exception:
HTTP Error 500: {"title": "500 Internal Server Error"}
Traceback (most recent call last):
File
"/opt/mailman/venv/lib/python3.13/site-packages/django/core/handlers/base.py",
line 197, in _get_response
response = wrapped_callback(request, *callback_args,
**callback_kwargs)
File
"/opt/mailman/venv/lib/python3.13/site-packages/postorius/views/list.py",
line 1141, in list_index
lists = paginate(
_get_list_page,
...<2 lines>...
paginator_class=MailmanPaginator,
)
File
"/opt/mailman/venv/lib/python3.13/site-packages/django_mailman3/lib/paginator.py",
line 71, in paginate
objects = paginator.page(page_num)
File
"/opt/mailman/venv/lib/python3.13/site-packages/django_mailman3/lib/paginator.py",
line 46, in page
number = self.validate_number(number)
File
"/opt/mailman/venv/lib/python3.13/site-packages/django/core/paginator.py",
line 53, in validate_number
if number > self.num_pages:
^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/django/utils/functional.py",
line 57, in __get__
res = instance.__dict__[self.name] = self.func(instance)
~~~~~~~~~^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/django/core/paginator.py",
line 99, in num_pages
if self.count == 0 and not self.allow_empty_first_page:
^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/django/utils/functional.py",
line 57, in __get__
res = instance.__dict__[self.name] = self.func(instance)
~~~~~~~~~^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/django_mailman3/lib/paginator.py",
line 56, in count
return self.function(count=0, page=1).total_size
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/postorius/views/list.py",
line 1137, in _get_list_page
return client.get_list_page(
~~~~~~~~~~~~~~~~~~~~^
advertised=advertised, mail_host=mail_host, count=count,
page=page
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File
"/opt/mailman/venv/lib/python3.13/site-packages/mailmanclient/client.py",
line 211, in get_list_page
return Page(self._connection, url, MailingList, count, page)
File
"/opt/mailman/venv/lib/python3.13/site-packages/mailmanclient/restbase/page.py",
line 37, in __init__
self._create_page()
~~~~~~~~~~~~~~~~~^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/mailmanclient/restbase/page.py",
line 62, in _create_page
response, content = self._connection.call(self._build_url())
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
File
"/opt/mailman/venv/lib/python3.13/site-packages/mailmanclient/restbase/connection.py",
line 160, in call
raise HTTPError(params.get('url'), response.status_code,
error_msg, response, None)
urllib.error.HTTPError: HTTP Error 500: {"title": "500 Internal Server
Error"}
ERROR 2026-08-10 14:11:20,041 1557501 django.request Internal Server
Error: /mailman3/lists/
ERROR 2026-08-10 14:11:20,041 1557501 django.request Internal Server
Error: /mailman3/lists/
I have taken the old database from the Debian configuration and moved it
to /opt/mailman... where it should belong (I hope).
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