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2.2.3

Closed
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Closed Mar 24, 2025
88% complete

on-merge: backport to 2.2.x

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0 issues of 9 selected

  • BUG: <code>read_csv()</code> silently ignores out-of-range integers

    Bug
    IO CSVread_csv, to_csv
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #55232 In pandas-dev/pandas;
    · davidchall opened on Sep 21, 2023

  • REGR: groupby.transform with a UDF performance

    Copy / view semantics
    Groupby
    PerformanceMemory or execution speed performance
    RegressionFunctionality that used to work in a prior pandas version
    Transformationse.g. cumsum, diff, rank
    Status: Open.
    #55256 In pandas-dev/pandas;
    · rhshadrach opened on Sep 23, 2023

  • REGR: Index.astype(&lt;numpy string dtype&gt;) started failing

    Astype
    IndexRelated to the Index class or subclasses
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #50127 In pandas-dev/pandas;
    · jorisvandenbossche opened on Dec 8, 2022

  • BUG: DatetimeIndexResamplerGroupby as_index interaction with .agg()

    ApplyApply, Aggregate, Transform, Map
    Bug
    Groupby
    RegressionFunctionality that used to work in a prior pandas version
    Timestamppd.Timestamp and associated methods
    Status: Open.
    #52397 In pandas-dev/pandas;
    · 1112114641 opened on Apr 4, 2023

  • BUG: Cannot convert existing column to categorical

    Bug
    IndexingRelated to indexing on series/frames, not to indexes themselves
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #52593 In pandas-dev/pandas;
    · Zahlii opened on Apr 11, 2023

  • BUG: json that could be read by pandas 1.5.3 cannot be read by 2.0.0

    IO JSONread_json, to_json, json_normalize
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #52595 In pandas-dev/pandas;
    · rikardn opened on Apr 11, 2023

  • BUG: (regression? v2 vs v1.5) ValueError: Big-endian buffer not supported on little-endian compiler

    ConstructorsSeries/DataFrame/Index/pd.array Constructors
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #53234 In pandas-dev/pandas;
    · st-bender opened on May 15, 2023

  • BUG: <code>DataFrame.var()</code> with <code>axis=1</code> returns <code>object</code> Series instead of <code>float64</code> Series?

    Bug
    Reduction Operationssum, mean, min, max, etc.
    RegressionFunctionality that used to work in a prior pandas version
    Status: Open.
    #55194 In pandas-dev/pandas;
    · itholic opened on Sep 19, 2023

  • BUG: <code>df1.merge(df2, on='ds', how='outer')</code> not convert column <code>ds</code> to the highest resolution datetime type of the two dfs

    Bug
    Non-Nanodatetime64/timedelta64 with non-nanosecond resolution
    ReshapingConcat, Merge/Join, Stack/Unstack, Explode
    Status: Open.
    #55212 In pandas-dev/pandas;
    · seanslma opened on Sep 20, 2023
    •