chore(docs): workaround for Python 3.14 incompatibility #787
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Signed-off-by: Pierluigi Lenoci <pierluigi.lenoci@gmail.com>
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@cpanato please take a look |
pierluigilenoci
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pierluigilenoci
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cpanato
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Nov 20, 2025
README.md
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| If you encounter `AttributeError: module 'ast' has no attribute 'Num'` or similar errors during schema validation when running CT on a system with Python 3.14, this is a known compatibility issue. | ||
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| **See [PYTHON-3.14-COMPATIBILITY.md](PYTHON-3.14-COMPATIBILITY.md) for detailed information and solutions.** |
Removed reference to PYTHON-3.14-COMPATIBILITY.md in README. Signed-off-by: Pierluigi Lenoci <pierluigi.lenoci@sap.com>
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What this PR does / why we need it:
This PR addresses the Python 3.14 incompatibility issue reported by users running Chart Testing (
ct) on self-hosted GitHub Actions runners with Python 3.14 installed.When running
cton systems with Python 3.14, schema validation fails with errors likeAttributeError: module 'ast' has no attribute 'Num'. This occurs because:ctor system Python runs with Python 3.14, Yamale fails immediatelyThe PR provides:
Changes Made:
Dockerfile: Added comments documenting Yamale 6.0.0's Python version support and Python 3.14 requirementsREADME.md: Added "Python Version Compatibility" and updated "Troubleshooting" sectionsWhich issue this PR fixes (optional, in
fixes #<issue number>(, fixes #<issue_number>, ...)format, will close that issue when PR gets merged): #786This addresses issues where users report schema validation failures with Python 3.14 on self-hosted GitHub Actions runners.
Special notes for your reviewer: