Unpins sqlAlchemy

[lazarust]

Closes #5477

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint.

[mariosasko]

It looks like this issue hasn't been fixed yet, so let's wait a bit more.

[albertvillanova]

@lazarust thanks for your work, but unfortunately we cannot merge it.

See my comment in: #5477 (comment)

The fix was released yesterday (2023-04-03) only in pandas-2.0.0:

• https://github.com/pandas-dev/pandas/releases/tag/v2.0.0

but it will not be back-ported to pandas-1:

• Make pandas/io/sql.py work with sqlalchemy 2.0 pandas-dev/pandas#48576 (comment)

Also note that pandas-2.0.0 dropped support for Python 3.7:

• Drop support for Python 3.7 pandas-dev/pandas#41678
• DEPS: drop Python 3.7 and NumPy 1.17 from tests (#41678) pandas-dev/pandas#41989

Therefore, we cannot unpin sqlalchemy until we drop support for Python 3.7 (these Python users cannot use pandas-2). See our latest CI checks below:

• "CI / test" fails because it runs on Python 3.7
• "CI / test_py310" succeeds because it runs on Python 3.10