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1.5.1

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Closed Oct 20, 2022
100% complete

on-merge: backport to 1.5.x

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0 issues of 123 selected

  • BUG: Pandas 1.4.x - calling groupBy(...).apply(func) on an empty dataframe invokes func

    ApplyApply, Aggregate, Transform, Map
    Bug
    Groupby
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #47985 In pandas-dev/pandas;
    · by fredspizza was closed on Sep 27, 2022

  • BUG: generated timestamps deviate from expected values

    Bug
    ExtensionArrayExtending pandas with custom dtypes or arrays.
    Timestamppd.Timestamp and associated methods
    Status: Closed (completed).
    #48255 In pandas-dev/pandas;
    · by chalmerlowe was closed on Sep 29, 2022

  • BUG: to_hdf fails with boolean index in 1.5

    Bug
    IO HDF5read_hdf, HDFStore
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48667 In pandas-dev/pandas;
    · by anthonyaag was closed on Sep 22, 2022

  • BUG: DataFrame.plot(kind='scatter') does not raise KeyError when unknown colormap is applied

    RegressionFunctionality that used to work in a prior pandas version
    Visualizationplotting
    Status: Closed (completed).
    #48726 In pandas-dev/pandas;
    · by lisphilar was closed on Sep 23, 2022

  • BUG: The behavior for <code>DataFrame.corrwith</code> is changed in pandas 1.5.0 ??

    AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48826 In pandas-dev/pandas;
    · by itholic was closed on Oct 17, 2022

  • BUG: None value converted to NaN in Series

    Bug
    IndexingRelated to indexing on series/frames, not to indexes themselves
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48665 In pandas-dev/pandas;
    · by stephanecollot was closed on Sep 23, 2022

  • REGR: Setting values with 'loc' and boolean mask mixes up values (all-True mask)

    IndexingRelated to indexing on series/frames, not to indexes themselves
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48701 In pandas-dev/pandas;
    · by sohailc was closed on Sep 22, 2022

  • BUG: pandas 1.5 fails to groupby on (nullable) Int64 column with dropna=False

    Bug
    Groupby
    NA - MaskedArraysRelated to pd.NA and nullable extension arrays
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48794 In pandas-dev/pandas;
    · by sm-Fifteen was closed on Oct 4, 2022

  • BUG: to_datetime - confusion with timeawarness

    DatetimeDatetime data dtype
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48678 In pandas-dev/pandas;
    · by PrimozGodec was closed on Sep 30, 2022

  • BUG: Regression on pandas 1.5.0 using describe with Int64 dtype getting a TypeError

    Dtype ConversionsUnexpected or buggy dtype conversions
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48778 In pandas-dev/pandas;
    · by killerrex was closed on Sep 26, 2022

  • BUG: ExcelWriter.book - attribute not accessible for setting

    IO Excelread_excel, to_excel
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48780 In pandas-dev/pandas;
    · by vranoch was closed on Oct 5, 2022

  • BUG: pd.fillna(np.nan, inplace=True) replaces values which are not None when using datetime dtype

    Bug
    DatetimeDatetime data dtype
    RegressionFunctionality that used to work in a prior pandas version
    replacereplace method
    Status: Closed (completed).
    #48863 In pandas-dev/pandas;
    · by adnapPanda was closed on Sep 29, 2022

  • BUG: df.to_parquet() fails for a PyFilesystem2 file handle

    Bug
    IO Parquetparquet, feather
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48944 In pandas-dev/pandas;
    · by SamRWest was closed on Oct 12, 2022

  • BUG: Regression in assert_frame_equal with check_like=True and Multiindex

    RegressionFunctionality that used to work in a prior pandas version
    Testingpandas testing functions or related to the test suite
    Status: Closed (completed).
    #48975 In pandas-dev/pandas;
    · by boxblox was closed on Oct 7, 2022

  • BUG: freq information lost after stack() is called

    Bug
    Needs TriageIssue that has not been reviewed by a pandas team member
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #49054 In pandas-dev/pandas;
    · by MMCMA was closed on Oct 14, 2022

  • RLS: pandas 1.5.1

    Release
    Status: Closed (completed).
    #48991 In pandas-dev/pandas;
    · by datapythonista was closed on Oct 20, 2022

  • BUG: regression in read_csv reading from file stream with encoding

    Bug
    IO CSVread_csv, to_csv
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48646 In pandas-dev/pandas;
    · by coroa was closed on Sep 20, 2022

  • BUG: df.fillna(dict, inplace=True) triggers FutureWarning in 1.5.0rc0 when DataFrame is empty

    Copy / view semantics
    IndexingRelated to indexing on series/frames, not to indexes themselves
    Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48480 In pandas-dev/pandas;
    · by marekro was closed on Sep 29, 2022

  • BUG: <code>dropna</code> affects <code>observed</code> in <code>DataFrame.groupby()</code> since v1.5

    Bug
    CategoricalCategorical Data Type
    Groupby
    Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48645 In pandas-dev/pandas;
    · by pwwang was closed on Sep 23, 2022

  • QST: pd.series indexing True auto 0 change

    IndexingRelated to indexing on series/frames, not to indexes themselves
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48653 In pandas-dev/pandas;
    · by sc303030 was closed on Sep 26, 2022

  • REGR: df.apply('any', axis=1) fails with ValueError

    ApplyApply, Aggregate, Transform, Map
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48656 In pandas-dev/pandas;
    · by vnlitvinov was closed on Sep 30, 2022

  • BUG: <code>pd.to_datetime()</code> fails to parse nanoseconds

    DatetimeDatetime data dtype
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48767 In pandas-dev/pandas;
    · by gtopper was closed on Sep 29, 2022

  • BUG: <code>FutureWarning: Inferring datetime64[ns]</code> when using <code>pd.pivot_table(..., margins=True)</code> and <code>datetime64[ns]</code>

    Bug
    ReshapingConcat, Merge/Join, Stack/Unstack, Explode
    WarningsWarnings that appear or should be added to pandas
    Status: Closed (completed).
    #48683 In pandas-dev/pandas;
    · by bollard was closed on Sep 23, 2022

  • BUG: AttributeError: 'function' object has no attribute 'currentframe'

    IO SQLto_sql, read_sql, read_sql_query
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48733 In pandas-dev/pandas;
    · by huka81 was closed on Sep 26, 2022

  • BUG: <code>df.groupby(axis=1).size()</code> returns weird output

    Bug
    Groupby
    RegressionFunctionality that used to work in a prior pandas version
    Status: Closed (completed).
    #48738 In pandas-dev/pandas;
    · by vnlitvinov was closed on Sep 26, 2022
    •