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CLN: remove no-longer-needed helper #56133

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Merged
merged 1 commit into from
Nov 23, 2023
Merged

CLN: remove no-longer-needed helper #56133

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33 changes: 0 additions & 33 deletions pandas/core/arrays/datetimelike.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2483,11 +2483,6 @@ def _validate_inferred_freq(
Returns
-------
freq : DateOffset or None

Notes
-----
We assume at this point that `maybe_infer_freq` has been called, so
`freq` is either a DateOffset object or None.
"""
if inferred_freq is not None:
if freq is not None and freq != inferred_freq:
Expand All @@ -2502,34 +2497,6 @@ def _validate_inferred_freq(
return freq


def maybe_infer_freq(freq) -> tuple[BaseOffset | None, bool]:
"""
Comparing a DateOffset to the string "infer" raises, so we need to
be careful about comparisons. Make a dummy variable `freq_infer` to
signify the case where the given freq is "infer" and set freq to None
to avoid comparison trouble later on.

Parameters
----------
freq : {DateOffset, None, str}

Returns
-------
freq : {DateOffset, None}
freq_infer : bool
Whether we should inherit the freq of passed data.
"""
freq_infer = False
if not isinstance(freq, BaseOffset):
# if a passed freq is None, don't infer automatically
if freq != "infer":
freq = to_offset(freq)
else:
freq_infer = True
freq = None
return freq, freq_infer


def dtype_to_unit(dtype: DatetimeTZDtype | np.dtype) -> str:
"""
Return the unit str corresponding to the dtype's resolution.
Expand Down
3 changes: 1 addition & 2 deletions pandas/core/indexes/timedeltas.py
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Expand Up @@ -22,7 +22,6 @@
)
from pandas.core.dtypes.generic import ABCSeries

from pandas.core.arrays import datetimelike as dtl
from pandas.core.arrays.timedeltas import TimedeltaArray
import pandas.core.common as com
from pandas.core.indexes.base import (
Expand Down Expand Up @@ -338,7 +337,7 @@ def timedelta_range(
if freq is None and com.any_none(periods, start, end):
freq = "D"

freq, _ = dtl.maybe_infer_freq(freq)
freq = to_offset(freq)
tdarr = TimedeltaArray._generate_range(
start, end, periods, freq, closed=closed, unit=unit
)
Expand Down