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BUG: Creation of UInt64 column with 18446744073709551615 throws RuntimeWarning #60214

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@lfffkh lfffkh commented Nov 6, 2024

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Thanks for the PR! Please always add tests when fixing bugs or changing behavior.

pandas/core/construction.py Outdated Show resolved Hide resolved
@rhshadrach rhshadrach added Bug Constructors Series/DataFrame/Index/pd.array Constructors labels Nov 6, 2024
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Can you add a test for DataFrame/Series construction as well.

data.soften_mask() # set hardmask False if it was True
data[mask] = fill_value
dtype = cast(np.dtype, data.dtype)
if isinstance(dtype, ExtensionDtype) and dtype.name.startswith("Masked"):
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I haven't checked thoroughly, but I think you want dtype._can_hold_na instead of having logic depend on the name of the dtype.

),
],
)
def test_sanitize_masked_array_with_masked_ea(values, dtype, expected):
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Can you add a case that tests for a large number as in an issue.

Also start the test with a reference to the GitHub issue:

# GH#60050

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