[kreczko]

Summary

+[tool.mypy]
+python_version = "3.12"
+
 [[tool.mypy.overrides]]
 module = ["pyarrow", "pyarrow.*"]
 ignore_missing_imports = true

workshop only configured mypy overrides (for pyarrow) and had no base section, so the target version was whatever interpreter ran mypy. flow, distributed, carpenter, curator, render, cli and the fasthep metapackage pin python_version = 3.12; this aligns workshop with them. requires-python (>=3.11) and the CI matrix are unchanged.

Evidence

• Before and after (mypy src tests on an export of origin/main and of this branch, same environment):

  src/fasthep_workshop/sinks/table.py:9: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
  Found 1 error in 1 file (checked 19 source files)
  

  The result is identical: the one error is pre-existing (a missing import in sinks/table.py) and unrelated to the target version. The change only fixes the target.

Merge Danger

Door: two-way. Three lines in pyproject.toml.

Blast Radius: type checking only. mypy output is unchanged today; the version no longer depends on the interpreter that runs it.

AI assistance

• Generated: the change and this description were written with Claude Sonnet 5.5.
• Reviewed: the author reviewed the diff locally before pushing. The checks above were run locally; the GitHub workflows have not run yet.
• Design decision: the mypy target moves to 3.12 only; the supported Python versions (>=3.11) are unchanged and will be decided after the next release set.
• Known limitations: none beyond the pre-existing items named above.

🤖 Generated with Claude Code