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FreeBSD recently began failing the test_nested_arrays_stringlength test in test_array_coercion.py. It emits a RuntimeWarning when casting float objects to string dtype
self = <test_array_coercion.TestStringDiscovery object at 0x1a16d2f95dd0>
obj = 1.2
@pytest.mark.parametrize("obj",
[object(), 1.2, 10**43, None, "string"],
ids=["object", "1.2", "10**43", "None", "string"])
def test_nested_arrays_stringlength(self, obj):
length = len(str(obj))
expected = np.dtype(f"S{length}")
arr = np.array(obj, dtype="O")
> assert np.array([arr, arr], dtype="S").dtype == expected
E RuntimeWarning: invalid value encountered in cast
arr = array(1.2, dtype=object)
expected = dtype('S3')
length = 3
obj = 1.2
self = <test_array_coercion.TestStringDiscovery object at 0x1a16d2f95dd0>
../.venv/lib/python3.11/site-packages/numpy/_core/tests/test_array_coercion.py:180: RuntimeWarning
Maybe we could get some FreeBSD eyeballs on this, I don't know who we should ping. I see @oscargus and @DavidAlphaFox have previously contributed FreeBSD issues and PRs, maybe they know who to turn to? In any case, #28331 makes CI pass by checking that this warning is emitted. This issue is to remind us to try to fix it.
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