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API: DatetimeIndex.strftime should return an Index #20127

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jreback opened this issue Mar 10, 2018 · 0 comments · Fixed by #20240
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API: DatetimeIndex.strftime should return an Index #20127

jreback opened this issue Mar 10, 2018 · 0 comments · Fixed by #20240
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API Design Compat pandas objects compatability with Numpy or Python functions Datetime Datetime data dtype good first issue
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0.23.0

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@jreback
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jreback commented Mar 10, 2018

Index.strftime should be returning an Index and not an array, we do this for other accessors. see https://github.com/pandas-dev/pandas/pull/20103/files#r173622263

In [6]: pd.date_range('20130101',periods=3).hour
Out[6]: Int64Index([0, 0, 0], dtype='int64')

In [7]: pd.date_range('20130101',periods=3).strftime('%Y%m%d')
Out[7]: array(['20130101', '20130102', '20130103'], dtype='<U8')
@jreback jreback added Datetime Datetime data dtype API Design Compat pandas objects compatability with Numpy or Python functions Effort Low good first issue labels Mar 10, 2018
@jreback jreback added this to the 0.23.0 milestone Mar 10, 2018
@reidy-p reidy-p mentioned this issue Mar 10, 2018
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API Design Compat pandas objects compatability with Numpy or Python functions Datetime Datetime data dtype good first issue
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API: Return Index from DatetimeIndex/PeriodIndex.strftime reidy-p/pandas
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