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3.0

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Last updated May 30, 2025
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0 issues of 44 selected

  • API: Make 'D' & offsets.Day always operate as calendar day instead of 24 Hour

    API Design
    Enhancement
    FrequencyDateOffsets
    Needs DiscussionRequires discussion from core team before further action
    Status: Open.
    #41943 In pandas-dev/pandas;
    · mroeschke opened on Jun 11, 2021

  • DISC: Remove DTA/TDA/PA <code>freq</code>

    DeprecateFunctionality to remove in pandas
    FrequencyDateOffsets
    Needs DiscussionRequires discussion from core team before further action
    Status: Open.
    #24566 In pandas-dev/pandas;
    · jbrockmendel opened on Jan 2, 2019

  • astype(str) / astype_unicode: np.nan converted to "nan" (checknull, skipna)

    Astype
    Bug
    Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
    StringsString extension data type and string data
    Status: Open.
    #25353 In pandas-dev/pandas;
    · ThibTrip opened on Feb 17, 2019

  • DEPR: pandas/core

    DeprecateFunctionality to remove in pandas
    Status: Open.
    #27522 In pandas-dev/pandas;
    · jreback opened on Jul 22, 2019

  • BUG: DTA/TDA setitem breaks freq on views

    Bug
    FrequencyDateOffsets
    Status: Open.
    #31218 In pandas-dev/pandas;
    · jbrockmendel opened on Jan 22, 2020

  • BUG: <code>Styler.to_excel</code> does not export styles and formats correctly

    Bug
    IO Excelread_excel, to_excel
    Master TrackerHigh level tracker for similar issues
    Stylerconditional formatting using DataFrame.style
    Status: Open.
    #42276 In pandas-dev/pandas;
    · attack68 opened on Jun 28, 2021

  • BUG: <code>DataFrame.dtypes</code> doesn't include backend for <code>string</code> columns

    Bug
    DataFrameDataFrame data structure
    Output-Formatting__repr__ of pandas objects, to_string
    StringsString extension data type and string data
    Status: Open.
    #50099 In pandas-dev/pandas;
    · jrbourbeau opened on Dec 7, 2022

  • API: Breaking Changes in 3.0 (without deprecations)

    API - ConsistencyInternal Consistency of API/Behavior
    DeprecateFunctionality to remove in pandas
    Master TrackerHigh level tracker for similar issues
    Status: Open.
    #44823 In pandas-dev/pandas;
    · jbrockmendel opened on Dec 8, 2021

  • DEPR: List of deprecations to be removed in 3.0

    DeprecateFunctionality to remove in pandas
    Master TrackerHigh level tracker for similar issues
    Status: Open.
    #50578 In pandas-dev/pandas;
    · datapythonista opened on Jan 5, 2023

  • API: Index.__array_wrap__ stop special-casing bool dtype

    API Design
    IndexRelated to the Index class or subclasses
    Status: Open.
    #52676 In pandas-dev/pandas;
    · jbrockmendel opened on Apr 14, 2023

  • DEPR: Index == Series should return NotImplemented

    DeprecateFunctionality to remove in pandas
    Status: Open.
    #36759 In pandas-dev/pandas;
    · jbrockmendel opened on Oct 1, 2020

  • TRACKER: new default String dtype (pyarrow-backed, numpy NaN semantics)

    API Design
    Arrowpyarrow functionality
    StringsString extension data type and string data
    Status: Open.
    #54792 In pandas-dev/pandas;
    · jorisvandenbossche opened on Aug 28, 2023

  • BUG: to_datetime with mixed iso-str and ints

    Bug
    ConstructorsSeries/DataFrame/Index/pd.array Constructors
    DatetimeDatetime data dtype
    Status: Open.
    #50721 In pandas-dev/pandas;
    · jbrockmendel opened on Jan 12, 2023

  • API: IncompatibleFrequency should subclass TypeError

    API Design
    Error ReportingIncorrect or improved errors from pandas
    Status: Open.
    #55782 In pandas-dev/pandas;
    · jbrockmendel opened on Oct 31, 2023

  • DEPR (PDEP-7/CoW): deprecate and remove <code>copy</code> keyword (except in constructors)

    Copy / view semantics
    DeprecateFunctionality to remove in pandas
    Status: Open.
    #56022 In pandas-dev/pandas;
    · jorisvandenbossche opened on Nov 17, 2023

  • BUG: <code>AttributeError</code> when <code>rolling.agg</code> use <code>np.prod</code> to calculate rolling product

    Bug
    Reduction Operationssum, mean, min, max, etc.
    Windowrolling, ewma, expanding
    Status: Open.
    #54203 In pandas-dev/pandas;
    · xythu opened on Jul 20, 2023

  • ENH: switch to copy=False by default when DataFrame is constructed from dict of Series/Index for CoW

    ConstructorsSeries/DataFrame/Index/pd.array Constructors
    Copy / view semantics
    Enhancement
    Needs DiscussionRequires discussion from core team before further action
    Status: Open.
    #52967 In pandas-dev/pandas;
    · phofl opened on Apr 27, 2023

  • DEPR: object inference in to_stata

    DeprecateFunctionality to remove in pandas
    IO Stataread_stata, to_stata
    Stale
    Status: Open (in progress).
    pandas-dev/pandasnumber 56536
    #56536 In pandas-dev/pandas;
    · jbrockmendel opened on Dec 17, 2023

  • DOC: Provide a public place for users to link to our documentation

    Docs
    Status: Open.
    #55632 In pandas-dev/pandas;
    · phofl opened on Oct 22, 2023

  • RLS: 3.0

    Release
    Status: Open.
    #57064 In pandas-dev/pandas;
    · datapythonista opened on Jan 25, 2024

  • DEPR: pd.concat special cases DatetimeIndex to sort even when sort=False

    DeprecateFunctionality to remove in pandas
    Needs DiscussionRequires discussion from core team before further action
    ReshapingConcat, Merge/Join, Stack/Unstack, Explode
    Sortinge.g. sort_index, sort_values
    Status: Open.
    #57335 In pandas-dev/pandas;
    · lukemanley opened on Feb 10, 2024

  • BUG: Incompatible dype warning when assigning boolean series with logical indexer

    Bug
    IndexingRelated to indexing on series/frames, not to indexes themselves
    PDEP6-relatedrelated to PDEP6 (not upcasting during setitem-like Series operations)
    Status: Open.
    #57338 In pandas-dev/pandas;
    · m0nzderr opened on Feb 10, 2024

  • Deprecate <code>future.no_silent_downcasting</code>

    DeprecateFunctionality to remove in pandas
    Status: Open.
    #57403 In pandas-dev/pandas;
    · phofl opened on Feb 13, 2024

  • BUG: FutureWarning when splitting a dataframe using <code>np.split</code>

    BlockerBlocking issue or pull request for an upcoming release
    Compatpandas objects compatability with Numpy or Python functions
    DeprecateFunctionality to remove in pandas
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #57351 In pandas-dev/pandas;
    · amanlai opened on Feb 11, 2024

  • BUG: groupby.agg should always agg

    API Design
    ApplyApply, Aggregate, Transform, Map
    Enhancement
    Groupby
    Needs DiscussionRequires discussion from core team before further action
    Status: Open (in progress).
    pandas-dev/pandasnumber 57706
    #57706 In pandas-dev/pandas;
    · rhshadrach opened on Mar 2, 2024
    •