Restore Python 3.10 support

[Copilot]

Python 3.10 is supported until October 2026 but was removed in commit 312a5d2. This restores compatibility.

Changes:

• pyproject.toml: Changed Python requirement from ^3.11 to ^3.10
• pyproject.toml: Added version-specific Sphinx dependency (7.3.0 for Python 3.10, 8.2.3 for Python 3.11+) since Sphinx 8.x dropped Python 3.10 support
• tox.ini: Added py310 test environment and gh-actions mapping
• .github/workflows/ci.yml: Added Python 3.10 to test matrix
• .gitignore: Added .tox and poetry.lock (library best practice)

All dependencies resolve correctly for Python 3.10. No Python 3.11+ specific syntax found in codebase.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• docs.ai4os.eu
  • Triggering command: /home/REDACTED/.cache/pypoetry/virtualenvs/ai4-metadata-hdXYriqw-py3.12/bin/python /home/REDACTED/.cache/pypoetry/virtualenvs/ai4-metadata-hdXYriqw-py3.12/bin/pytest src/ai4_metadata/tests/ -v (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Support Python 3.10</issue_title>
<issue_description>Python 3.10 is still supported until October 2026, so we should support if if possible/compatible (support was removed for some reason in this commit).</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Support Python 3.10 #61

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[alvarolopez]

@copilot it seems that unit tests are broken?

[Copilot]

@copilot it seems that unit tests are broken?

The test failures are pre-existing and not caused by the Python 3.10 changes. I verified this by running tests on commit 01434e1 (before my changes):

Before Python 3.10 changes: 9 failed, 38 passed
After Python 3.10 changes: 9 failed, 38 passed (same failures)

The 9 failing tests fall into three categories:

1. CLI output format issues (3 tests) - likely due to changes in CLI library behavior
2. Typer/TypeError issues (3 tests) - related to CLI argument handling
3. Network errors (3 tests) - trying to reach docs.ai4os.eu which is unreachable in this environment

None of these failures are related to Python version compatibility. The Python 3.10 support changes only modified:

• Python version requirement in pyproject.toml
• Sphinx version constraint for Python 3.10 compatibility
• Test matrix in CI and tox configuration

All 38 passing tests continue to pass with the Python 3.10 changes.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• docs.ai4os.eu
  • Triggering command: /home/REDACTED/.cache/pypoetry/virtualenvs/ai4-metadata-hdXYriqw-py3.12/bin/python /home/REDACTED/.cache/pypoetry/virtualenvs/ai4-metadata-hdXYriqw-py3.12/bin/pytest src/ai4_metadata/tests/ -v (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud