Kmp 2to3 fixes poetry (C4-1106)

[netsettler]

This adds poetry, PEP8, and some fixes to the tests and the repo.

[willronchetti]

Looks good should be tested in CGAP though

[willronchetti]

22.04?

[netsettler]

Thanks. Fixed.

[willronchetti]

22.04?

[netsettler]

Fixed, too.

[willronchetti]

No need for 3.7 I'd say

[willronchetti]

This file can be deleted entirely no?

[netsettler]

Seemingly. It took some adjusting but seems to be working now.

[willronchetti]

Can be deleted no?

[netsettler]

Had to reimplement how it __init__.py gets the version, but yeah, I don't think version.py is doing anything.

[netsettler]

In my revised version, it gets the VERSION from pyproject.toml (indirectly through importlib.metadata) whereas previously __init__.py was the source of authority on version.

[netsettler]

This tested cleanly in cgap-portal testing for Python 3.8 on my local machine.

poetry run python -m pytest -vv -m static && make lint
===== 3 passed, 2175 deselected, 238 warnings in 8.75s =====
poetry run python -m pytest -xvv -r w --durations=25 --timeout=600 -m "not manual and not sloppy and not static and not broken and not performance and not integratedx and not indexing"
===== 1087 passed, 15 skipped, 1076 deselected, 944 warnings in 751.99s (0:12:31) =====
poetry run python -m pytest -xvv -r w --durations=25 --timeout=200 -m "not manual and not sloppy and not static and not broken and not performance and not integratedx and indexing and es"
===== 20 passed, 2158 deselected, 647 warnings in 177.56s (0:02:57) =====
poetry run python -m pytest -xvv -r w --durations=25 --timeout=200 -m "not manual and not sloppy and not static and not broken and not performance and not integratedx and indexing and not es"
===== 616 passed, 72 skipped, 1490 deselected, 1609 warnings in 121.91s (0:02:01) =====
commit 0467c8be1fd8b8a86ada9d6d110e436f424ab039 (HEAD -> upgrade-python-20230925, origin/upgrade-python-20230925)
Wed Oct  4 19:00:34 EDT 2023

Also in Python 3.11 on GA.

[netsettler]

OK, I've moved the label to 3.0.0 since, by agreement with @willronchetti on Slack, passing tests in cgap-portal is a good test. No need for test deploy, he also agreed. (And, as a contingency in case of later problems, if anyone needs to revert, they can always use ^2.0.0 and they won't end up in the 3.0.0 series.) I think this is ready to merge.