Bump Python minimum version to 3.9+ #151
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Co-authored-by: friggeri <106686+friggeri@users.noreply.github.com>
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[WIP] Update minimum Python version to 3.9 in project files
Bump Python minimum version to 3.9+
Jan 23, 2026
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Pull request overview
This PR updates the documented and enforced minimum Python version for the Python SDK to 3.9+, aligning it with the use of PEP 585 generics that are not compatible with Python 3.8, so 3.8 users fail at install time instead of at runtime.
Changes:
- Raised
requires-pythoninpython/pyproject.tomlfrom>=3.8to>=3.9and removed the Python 3.8 classifier. - Updated Ruff configuration
target-versionfrompy38topy39to match the new minimum runtime version. - Updated the Python SDK README requirements from “Python 3.8+” to “Python 3.9+” for consistency with packaging metadata.
Note: Other repo docs still reference Python 3.8 (e.g.,CONTRIBUTING.md,cookbook/python/recipe/README.md); consider updating those in a follow-up change.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
python/pyproject.toml |
Bumps the minimum supported Python version to 3.9 in packaging metadata and linter configuration, removing Python 3.8 from classifiers. |
python/README.md |
Updates the documented Python version requirement from 3.8+ to 3.9+ for the Python SDK. |
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patniko
approved these changes
Jan 23, 2026
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The codebase uses PEP 585 generic type syntax (
tuple[str, int]) which requires Python 3.9+. Python 3.8 raisesTypeError: 'type' object is not subscriptableat runtime.Changes
python/pyproject.tomlrequires-python:>=3.8→>=3.9target-version:py38→py39python/README.mdPython 3.8+→Python 3.9+Users on Python 3.8 will now receive a clear installation error instead of runtime failures.
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