ENH: ArrowTemporalProperties' object has no attribute 'to_period'

[dbalabka]

Feature Type

• Adding new functionality to pandas

• Changing existing functionality in pandas

• Removing existing functionality in pandas

Problem Description

This request is related to #52321 and #52330. Currently, Arrow dtype does not support function: https://pandas.pydata.org/docs/reference/api/pandas.Series.to_period.html

Feature Description

The following script throws an error:

import pandas as pd
from datetime import datetime

s = pd.Series([datetime.now()], dtype='date32[pyarrow]')
s.dt.to_period('D')

AttributeError: 'ArrowTemporalProperties' object has no attribute 'to_period'

Alternative Solutions

Otherwise, it requires convert arrow type back to pandas type which is not efficient:

import pandas as pd
from datetime import datetime

s = pd.Series([datetime.now()], dtype='date32[pyarrow]')
pd.to_datetime(s).dt.to_period('D')

Additional Context

No response

[rhshadrach]

Since this works on datetime64[s] it seems reasonable to have it work on pyarrow dtypes.

@jbrockmendel - that sound right?

[jbrockmendel]

The requested feature would be identical to .astype(“period[D]”). I don’t mind supporting it, but would also be ok with saying we want Just One Way. Side-note: datetime64 corresponds to timestamp[pyarrow], not date32[pyarrow].

[rhshadrach]

would also be ok with saying we want Just One Way.

I think that would mean deprecating to_period, is that right?

[jbrockmendel]

I just meant not adding it here