fix(python): add missing Pendulum Interval wrapper support - #379
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yezz123 merged 2 commits intoApr 5, 2026
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Signed-off-by: Mridankan Mandal <xerontitan90@gmail.com>
Signed-off-by: Mridankan Mandal <xerontitan90@gmail.com>
yezz123
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pydantic-extra-types 2.11.2 (pydantic/pydantic-extra-types#379) added a pendulum `Interval` wrapper that does `class Interval(_Interval[Any])`. This requires `pendulum.Interval` to be a `Generic`, which it only became in pendulum 3.1. On environments pinned to pendulum 3.0.0, any `import prefect` fails at module load with: TypeError: type 'Interval' is not subscriptable because `prefect/types/_datetime.py` imports from `pydantic_extra_types.pendulum_dt` on Python < 3.13. Bump the floor to `pendulum>=3.1.0` in both `pyproject.toml` and `client/pyproject.toml` so resolvers steer users onto a pendulum release that is compatible with the current `pydantic-extra-types`. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Description:
I noticed this happened because
pendulum_dtalready wrapsDateTime,Date,Time, andDuration, but there was no wrapper forInterval. That madeIntervalunavailable as a first class validated type in this module. This PR adds the missing wrapper, validates existingpendulum.Intervalvalues, parses ISO-8601 interval strings, and returns the project specific wrapper type. It also adds focused tests for valid and invalid interval inputs.Closes #364
AI Assistance Disclosure:
uv run pytest tests/test_pendulum_dt.py -qin WSL (209 passed) and ran make lint (passed).Checklist: