ansible: mail integration tests uses the asyncore module which has been removed in Python 3.11

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Summary

The ansible_collections/community/general/tests/integration/targets/mail/files/smtpserver.py uses import asyncore whereas this module has been removed in Python 3.11, after being deprecated since Python 3.6.

One option is to copy Python 3.10 asyncore.py file in ansible test suite. Another is that someone should maintain an asyncore module on PyPI.

First, I reported the issue at ansible/ansible#76452 but I got rejected there.

Issue Type

Bug Report

Component Name

tests

Ansible Version

ansible-5.0.0 source code from PyPI.

Community.general Version

$ ansible-galaxy collection list community.general

Configuration

$ ansible-config dump --only-changed

OS / Environment

Any operating system.

Steps to Reproduce

Run the ansible integration test suite on Python 3.11: it emits a deprecation warning. The module will be removed from Python 3.12: see python/cpython#72719

Expected Results

ansible-5.0.0/ansible_collections/community/general/tests/integration/targets/mail/files/smtpserver.py must not fail.

Actual Results

I didn't try to run the Ansible test suite. I only noticed that "import asyncore" is used.

Code of Conduct

• I agree to follow the Ansible Code of Conduct

[ansibullbot]

Files identified in the description:

• tests/.gitignore

If these files are incorrect, please update the component name section of the description or use the !component bot command.

click here for bot help

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!component =tests/integration/targets/mail/files/smtpserver.py

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Link to the line importing asyncore:

community.general/tests/integration/targets/mail/files/smtpserver.py

Line 10 in cf55ef8

import asyncore

[ansibullbot]

Files identified in the description:

• tests/integration/targets/mail/files/smtpserver.py

If these files are incorrect, please update the component name section of the description or use the !component bot command.

click here for bot help

[felixfontein]

Thanks for this report! Instead of vendoring that module, I think we should better adjust the test.

[felixfontein]

The same test also depends on the smtpd module, which will be removed from Python 3.12.

I was about to suggest the following route:

1. Continue to use the current solution for Python 2 and Python 3.5.
2. Use another solution for Python 3.6+. aiosmtpd looks promising on the first glance, but it doesn't even support Python 3.10, and there have been no commits for over a year.

Right now I'm more thinking of installing and configuring something like postfix instead? That's probably more work, but seems less painful to maintain.