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DEPR: PeriodDtype.freq

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

PeriodPeriod data typePeriod data type

Stale

Status: Open (in progress).

pandas-dev/pandasnumber 61897

#61897 In pandas-dev/pandas;

· jbrockmendel opened on Jul 18, 2025

BUG: Inconsistency when converting week PeriodIndex into DatetimeIndex with astype("datetime64[ns]")

Bug

DatetimeDatetime data dtypeDatetime data dtype

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

PeriodPeriod data typePeriod data type

Status: Open.

#61177 In pandas-dev/pandas;

· dbalabka opened on Mar 25, 2025

BUG: .to_period with MonthBegin offset does not work with a Timestamp, but works with pd.DatetimeIndex

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

PeriodPeriod data typePeriod data type

Timestamppd.Timestamp and associated methodspd.Timestamp and associated methods

Status: Open.

#60671 In pandas-dev/pandas;

· felipeangelimvieira opened on Jan 7, 2025

BUG: pd.concat() cannot concatenate more than 3 mixed-frequency dataframes with multi-index series

Bug

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

PeriodPeriod data typePeriod data type

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Open.

#59775 In pandas-dev/pandas;

· sakaiando opened on Sep 11, 2024

BUG: PeriodIndex.to_timestamp inconsistent with its docstring

Bug

FrequencyDateOffsetsDateOffsets

PeriodPeriod data typePeriod data type

Status: Open.

#59371 In pandas-dev/pandas;

· MarcoGorelli opened on Jul 31, 2024

BUG: index <code>to_period</code> - <code>to_timestamp</code> round trip with <code>freq</code> argument fails specifically with <code>period-start</code> frequencies

Bug

FrequencyDateOffsetsDateOffsets

PeriodPeriod data typePeriod data type

Status: Open.

#58974 In pandas-dev/pandas;

· fkiraly opened on Jun 10, 2024

QST: FutureWarning: Resampling with a PeriodIndex is deprecated, how to resample now?

Closing CandidateMay be closeable, needs more eyeballsMay be closeable, needs more eyeballs

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

Needs DiscussionRequires discussion from core team before further actionRequires discussion from core team before further action

PeriodPeriod data typePeriod data type

Resampleresample methodresample method

Status: Open.

#57033 In pandas-dev/pandas;

· andreas-wolf opened on Jan 23, 2024

· 

3.0

QST: Roadmap for deprecations of Period types

Needs InfoClarification about behavior needed to assess issueClarification about behavior needed to assess issue

PeriodPeriod data typePeriod data type

Usage Question

Status: Open.

#56588 In pandas-dev/pandas;

· ChadFulton opened on Dec 21, 2023

API: dt64 resolution for PeriodIndex.to_timestamp

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

IndexRelated to the Index class or subclassesRelated to the Index class or subclasses

PeriodPeriod data typePeriod data type

Timestamppd.Timestamp and associated methodspd.Timestamp and associated methods

Status: Open.

#56164 In pandas-dev/pandas;

· jbrockmendel opened on Nov 25, 2023

BUG: Unable to create PeriodIndex with freq of QuarterEnd with startingMonth != 12

Bug

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

PeriodPeriod data typePeriod data type

Status: Open.

#55784 In pandas-dev/pandas;

· cancan101 opened on Nov 1, 2023

BUG: .to_json() of periode_range gives OverflowError: Maximum recursion level reached

Bug

IO JSONread_json, to_json, json_normalizeread_json, to_json, json_normalize

PeriodPeriod data typePeriod data type

Status: Open.

#55490 In pandas-dev/pandas;

· IbHansen opened on Oct 11, 2023

BUG/TST: can_use_libjoin cases with mixed-freq Periods

Bug

PeriodPeriod data typePeriod data type

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Open.

#55333 In pandas-dev/pandas;

· jbrockmendel opened on Sep 30, 2023