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2.3

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Last updated May 30, 2025
88% complete

on-merge: backport to 2.3.x

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0 issues of 331 selected

  • API: string dtype propagation of NaNs in predicate methods (eg .str.startswith)

    API Design
    StringsString extension data type and string data
    Status: Closed (completed).
    #54805 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Oct 28, 2024

  • BUG: Index.get_indexer casts values is given as list

    API Design
    Arrowpyarrow functionality
    StringsString extension data type and string data
    Status: Closed (completed).
    #55834 In pandas-dev/pandas;
    · by phofl was closed on Nov 16, 2024

  • BUG (string dtype): looking up missing value in the Index fails

    Bug
    IndexRelated to the Index class or subclasses
    StringsString extension data type and string data
    Status: Closed (completed).
    #59879 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Jan 2, 2025

  • API: creating DataFrame with no columns: object vs string dtype columns?

    API Design
    IndexRelated to the Index class or subclasses
    StringsString extension data type and string data
    Status: Closed (completed).
    #60338 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Apr 9, 2025

  • BUG: np.nan_to_num change pandas DataFrame in place when copy = True

    Bug
    Compatpandas objects compatability with Numpy or Python functions
    Status: Closed (completed).
    #59932 In pandas-dev/pandas;
    · by lil-blue-curve was closed on Nov 4, 2024

  • DOC: Intro to pandas table not readily visible in dark mode

    Docs
    Status: Closed (completed).
    #60024 In pandas-dev/pandas;
    · by rhshadrach was closed on Apr 30, 2025

  • BUG (string dtype): <code>replace()</code> value in string column with non-string should cast to object dtype instead of raising an error

    Bug
    replacereplace method
    StringsString extension data type and string data
    Status: Closed (completed).
    #60282 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Nov 12, 2024

  • BUG/API: sum of a string column with all-NaN or empty

    Bug
    Groupby
    StringsString extension data type and string data
    Status: Closed (completed).
    #60229 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Mar 10, 2025

  • BUG: <code>numpy.ma.fix_invalid</code> makes changes in-place in numpy 2.1.0 even with <code>copy=True</code>

    Bug
    Status: Closed (completed).
    #59614 In pandas-dev/pandas;
    · by kounelisagis was closed on Nov 16, 2024

  • DEPR: deprecate / warn about raising an error in __array__ when copy=False cannot be honore

    Compatpandas objects compatability with Numpy or Python functions
    Status: Closed (completed).
    #60340 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Jan 13, 2025

  • BUG (string): contruction of Series / Index fails from dict keys when "str" dtype is specified explicitly

    Bug
    ConstructorsSeries/DataFrame/Index/pd.array Constructors
    StringsString extension data type and string data
    Status: Closed (completed).
    #60343 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Jan 26, 2025

  • BUG: <code>pd.Series.groupby</code> issues <code>FutureWarning</code>

    Bug
    Groupby
    WarningsWarnings that appear or should be added to pandas
    Status: Closed (completed).
    #60831 In pandas-dev/pandas;
    · by TiborVoelcker was closed on Feb 22, 2025

  • BUG: Inconsistent dtype with GroupBy for StrDtype and all missing values

    Bug
    Groupby
    StringsString extension data type and string data
    Status: Closed (completed).
    #60810 In pandas-dev/pandas;
    · by WillAyd was closed on Apr 19, 2025

  • REGR: DataFrame.from_records for subclasses no longer calls subclass constructor

    RegressionFunctionality that used to work in a prior pandas version
    SubclassingSubclassing pandas objects
    Status: Closed (completed).
    #57008 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Jan 17, 2025

  • COMPAT: Utilize <code>copy</code> keyword in <code>__array__</code>

    Compatpandas objects compatability with Numpy or Python functions
    Status: Closed (completed).
    #57739 In pandas-dev/pandas;
    · by mroeschke was closed on Nov 4, 2024

  • BUG: replace with 3 or more <code>None</code> values fails when copy_on_write is enabled

    Bug
    Copy / view semantics
    replacereplace method
    Status: Closed (completed).
    #59770 In pandas-dev/pandas;
    · by timvink was closed on Sep 15, 2024

  • API/BUG: obj.str.slice(start:None:-1)

    Arrowpyarrow functionality
    Bug
    StringsString extension data type and string data
    Status: Closed (completed).
    #59710 In pandas-dev/pandas;
    · by jbrockmendel was closed on Sep 10, 2024

  • BUG: .str.contains <code>na</code> validation

    API - ConsistencyInternal Consistency of API/Behavior
    Bug
    StringsString extension data type and string data
    Status: Closed (completed).
    #59561 In pandas-dev/pandas;
    · by jbrockmendel was closed on Aug 31, 2024

  • API (string dtype): comparisons between different string classes

    API - ConsistencyInternal Consistency of API/Behavior
    Needs DiscussionRequires discussion from core team before further action
    Numeric OperationsArithmetic, Comparison, and Logical operations
    StringsString extension data type and string data
    Status: Closed (completed).
    #60639 In pandas-dev/pandas;
    · by rhshadrach was closed on May 19, 2025

  • BUG: round on object columns no longer raises a TypeError

    Bug
    Error ReportingIncorrect or improved errors from pandas
    Numeric OperationsArithmetic, Comparison, and Logical operations
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #61206 In pandas-dev/pandas;
    · by MT407 was closed on May 21, 2025

  • Series.str.find fix for pd.ArrowDtype(pa.string())

    Arrowpyarrow functionality
    StringsString extension data type and string data
    Status: Merged (completed).
    pandas-dev/pandasnumber 56792
    #56792 In pandas-dev/pandas;
    · by rohanjain101 was closed on Feb 2, 2024

  • BUG: get_indexer rountripping through string dtype

    IndexRelated to the Index class or subclasses
    StringsString extension data type and string data
    Status: Merged (completed).
    pandas-dev/pandasnumber 56013
    #56013 In pandas-dev/pandas;
    · by phofl was closed on Nov 16, 2024

  • TST / string dtype: add env variable to enable future_string and add test build

    backported
    StringsString extension data type and string data
    Testingpandas testing functions or related to the test suite
    Status: Merged (completed).
    pandas-dev/pandasnumber 58459
    #58459 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Jul 26, 2024

  • TST (string) fix xfailed groupby tests (3)

    backported
    StringsString extension data type and string data
    Testingpandas testing functions or related to the test suite
    Status: Merged (completed).
    pandas-dev/pandasnumber 59642
    #59642 In pandas-dev/pandas;
    · by jbrockmendel was closed on Aug 28, 2024

  • DOC: Add whatsnew for 2.3.0

    backported
    Docs
    Status: Merged (completed).
    pandas-dev/pandasnumber 59625
    #59625 In pandas-dev/pandas;
    · by jorisvandenbossche was closed on Aug 27, 2024
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