Add typehints

[Samoed]

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[Samoed]

Hi @seanmacavaney can you review?

[Samoed]

@cmacdonald @seanmacavaney can you review?

[cmacdonald]

Thanks for this, nice work.

We should add a mypy GHA that verifies the types. Can you take a style.yml file from another of our projects?

[Samoed]

Added ruff config

[Samoed]

I tried to add mypy, but it raises some errors. I can try to fix it

[cmacdonald]

Here is the mypy output:

py/__init__.py:9: error: Cannot find implementation or library stub for module named "numpy"  [import-not-found]
py/__init__.py:9: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
py/__init__.py:10: error: Cannot find implementation or library stub for module named "pytrec_eval_ext"  [import-not-found]
py/__init__.py:41: error: Need type annotation for "run"  [var-annotated]
py/__init__.py:70: error: Need type annotation for "qrel"  [var-annotated]
py/__init__.py:180: error: Need type annotation for "param_meas"  [var-annotated]
py/__init__.py:187: error: Item "None" of "Optional[Match[str]]" has no attribute "group"  [union-attr]

[cmacdonald]

added some comments - nearly there @Samoed !

[Samoed]

Changed ruff to singe quotes

[cmacdonald]

LGTM. are you happy @seanmacavaney ?

[seanmacavaney]

To avoid increasing the min supported python version, I switched to Dict, List, Set from typing.

I think this is good to go, I'll merge and release.

Thanks a bunch @Samoed!