Minimum python verison

[mkolopanis]

The pyproject.toml requires define python3.8 as the minimum working python.

MPoL/pyproject.toml

Line 26 in f1facdb

requires-python = ">=3.8"

However, continuous integration is only run on 3.10-3.12 and when attempting run this package in python 3.8 yields typing related errors:

-> % python -c "from mpol import utils"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/matthew/src/MPoL/.venv-3.8/lib/python3.8/site-packages/mpol/utils.py", line 135, in <module>
    ) -> npt.NDArray[np.floating[Any]]:
TypeError: Type subscription requires python >= 3.9

There are ways to back port some typing like this to 3.8 but I am curious if you desire a minimum python of 3.10 based on the repository's automated testing.

[iancze]

The minimum python version technically should have been 3.10 (now 3.11) but the reason we didn't set this is as a hard requirement in pyproject.toml was that for a long time modular CASA only worked with python 3.8, and some users would want to have both MPoL and CASA installed into the same environment.

It seems like modular CASA is now at a state that bumping MPoL to a 3.10 minimum version of Python is acceptable.

[mkolopanis]

I think this is hitting on the crux of my particular issue too. As I am attempting to move through the examples for the review, I am finding that I require extra python environments to support the casa requirements because casa's python tools tend to have a longer delay for updating python versions.