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BUG: pandas.options.mode.use_inf_as_na disables NA checking for StringArray #33655

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dsaxton opened this issue Apr 19, 2020 · 0 comments · Fixed by #33656
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BUG: pandas.options.mode.use_inf_as_na disables NA checking for StringArray #33655

dsaxton opened this issue Apr 19, 2020 · 0 comments · Fixed by #33656
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Bug NA - MaskedArrays Related to pd.NA and nullable extension arrays
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1.1

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@dsaxton
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dsaxton commented Apr 19, 2020

1.0.3 or master:

import pandas as pd

pd.options.mode.use_inf_as_na = True
arr = pd.array(["a", "b", None])
arr.isna()
# array([False, False, False])

Setting use_inf_as_na to True breaks isna for StringArray as shown above; it seems to work fine for other ExtensionArrays I checked (IntegerArray, BooleanArray).
@dsaxton dsaxton added Bug Needs Triage Issue that has not been reviewed by a pandas team member NA - MaskedArrays Related to pd.NA and nullable extension arrays and removed Needs Triage Issue that has not been reviewed by a pandas team member labels Apr 19, 2020
@dsaxton dsaxton mentioned this issue Apr 19, 2020
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@dsaxton dsaxton mentioned this issue May 9, 2020
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@jreback jreback added this to the 1.1 milestone May 10, 2020
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Bug NA - MaskedArrays Related to pd.NA and nullable extension arrays
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BUG: Fix StringArray use_inf_as_na bug
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@jreback @dsaxton