CI: Fix PyPy CI

[lithomas1]

• closes #xxxx
• tests added / passed
• Ensure all linting tests pass, see here for how to run them
• whatsnew entry

PyPy was not being pulled correctly. Its fixed now and have confirmed.

[lithomas1]

@github-actions pre-commit.

[jreback]

@lithomas1 can you merge master one more time (as i merged the pypy3 affecting PR :-<>)

[lithomas1]

@jreback. This is ready now.
There are a couple gotchas, though:

• Cython 0.29.26 doesn't compile correctly for PyPy.
• Coverage is disabled because it slows down everything a lot.
• The CSV reader crashes are gone, but we're crashing a lot elsewhere, and that slows everything down when the crashed workers need to be restarted. So, I set the CI to not restart workers. Some tests may be missed, but otherwise we can't get through the test suite.

I'll open an issue as a follow up.

[jreback]

https://github.com/pandas-dev/pandas/runs/4562612265?check_suite_focus=true

i think this is actually failing (but the check is not)

[jreback]

@jreback. This is ready now. There are a couple gotchas, though:

• Cython 0.29.26 doesn't compile correctly for PyPy.
• Coverage is disabled because it slows down everything a lot.
• The CSV reader crashes are gone, but we're crashing a lot elsewhere, and that slows everything down when the crashed workers need to be restarted. So, I set the CI to not restart workers. Some tests may be missed, but otherwise we can't get through the test suite.

I'll open an issue as a follow up.

totally cool to disable things, basics are all that is needed here

[lithomas1]

Yeah, I set it to always succeed in the testing phase since a lot of tests fail.

[jreback]

great as a follow up we should skip / xfail o ln pypy3

[jreback]

@lithomas1 hey if you can shoot me an email '[email protected]' have some info for you