CLN: resolve DeprecationWarning in pandas/_testing.py #35942

[fangchenli]

• closes CLN: DeprecationWarning in _testing #35942
• passes black pandas
• passes git diff upstream/master -u -- "*.py" | flake8 --diff

[TomAugspurger]

Thanks for the PR. Can you confirm that this is the correct fix? On master I see this

> /Users/taugspurger/sandbox/pandas/pandas/_testing.py(790)assert_index_equal() -> diff = np.sum((left.values != right.values).astype(int)) * 100.0 / len(left) (Pdb) left Index([<NA>, NaT], dtype='object') (Pdb) left.values array([<NA>, numpy.datetime64('NaT')], dtype=object) (Pdb) right.values array([<NA>, NaT], dtype=object) (Pdb) pp np.no np.nonzero np.not_equal (Pdb) pp np.not_equal(left.values, right.values) *** TypeError: boolean value of NA is ambiguous 

Are we raising a TypeError but not seeing it since the test is xfailed?

[fangchenli]

Thanks for the PR. Can you confirm that this is the correct fix? On master I see this

> /Users/taugspurger/sandbox/pandas/pandas/_testing.py(790)assert_index_equal() -> diff = np.sum((left.values != right.values).astype(int)) * 100.0 / len(left) (Pdb) left Index([<NA>, NaT], dtype='object') (Pdb) left.values array([<NA>, numpy.datetime64('NaT')], dtype=object) (Pdb) right.values array([<NA>, NaT], dtype=object) (Pdb) pp np.no np.nonzero np.not_equal (Pdb) pp np.not_equal(left.values, right.values) *** TypeError: boolean value of NA is ambiguous 

Are we raising a TypeError but not seeing it since the test is xfailed?

There are 4 xfail at pandas/tests/indexes/test_index_new.py:99. Before the change, it was an
AttributeError: 'bool' object has no attribute 'astype'. After the change, it became TypeError: boolean value of NA is ambiguous.

[TomAugspurger]

Right, do we want that TypeError? What's the desired behavior?

[fangchenli]

Right, do we want that TypeError? What's the desired behavior?

Not sure about this. Might need some discussion. xref #31884

[github-actions]

This pull request is stale because it has been open for thirty days with no activity. Please update or respond to this comment if you're still interested in working on this.