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BUG: Series.mask incorrectly replaces positions of pd.NA in the cond argument

Arrowpyarrow functionalitypyarrow functionality

Bug

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

NA - MaskedArraysRelated to pd.NA and nullable extension arraysRelated to pd.NA and nullable extension arrays

Status: Open.

#60729 In pandas-dev/pandas;

· kartoria opened on Jan 18, 2025

BUG: Arrow Struct columns cannot be grouped on (ArrowNotImplementedError)

Arrowpyarrow functionalitypyarrow functionality

Bug

Error ReportingIncorrect or improved errors from pandasIncorrect or improved errors from pandas

Groupby

Status: Open.

#60594 In pandas-dev/pandas;

· a-reich opened on Dec 20, 2024

BUG: NameError: name 'pa' is not defined despite pyarrow is installed

Arrowpyarrow functionalitypyarrow functionality

Bug

Status: Open.

#60573 In pandas-dev/pandas;

· emmansh opened on Dec 15, 2024

BUG: value_counts() check Index with PyArrow categorical columns

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

Arrowpyarrow functionalitypyarrow functionality

Bug

CategoricalCategorical Data TypeCategorical Data Type

Status: Open (in progress).

pandas-dev/pandasnumber 60569

#60569 In pandas-dev/pandas;

· NOBODIDI opened on Dec 14, 2024

BUG: groupby with dropna=False and pa.dictionary drops NA values

Arrowpyarrow functionalitypyarrow functionality

Groupby

Missing-datanp.nan, pd.NaT, pd.NA, dropna, isnull, interpolatenp.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

Status: Open.

#60567 In pandas-dev/pandas;

· rhshadrach opened on Dec 14, 2024

BUG: value_counts() returns error/wrong result with PyArrow categorical columns with nulls

AlgosNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diffNon-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

Arrowpyarrow functionalitypyarrow functionality

Bug

CategoricalCategorical Data TypeCategorical Data Type

good first issue

Status: Open.

#60563 In pandas-dev/pandas;

· lmoasdev opened on Dec 14, 2024

BUG: set_index with pyarrow timestamp type does not produce DatetimeIndex

Arrowpyarrow functionalitypyarrow functionality

Bug

DatetimeDatetime data dtypeDatetime data dtype

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

Status: Open.

#60561 In pandas-dev/pandas;

· WillAyd opened on Dec 13, 2024

BUG: why arrow no affect in Intel chips？

Arrowpyarrow functionalitypyarrow functionality

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

PerformanceMemory or execution speed performanceMemory or execution speed performance

Status: Open.

#60466 In pandas-dev/pandas;

· wonb168 opened on Dec 2, 2024

BUG: .convert_dtypes(dtype_backend="pyarrow") strips timezone from tz-aware pyarrow timestamp Series

Arrowpyarrow functionalitypyarrow functionality

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

LocalizationInternationalization of dataInternationalization of data

good first issue

Status: Open.

#60237 In pandas-dev/pandas;

· jamesdow21 opened on Nov 8, 2024

Fix BUG: read_sql tries to convert blob/varbinary to string with pyarrow backend

Arrowpyarrow functionalitypyarrow functionality

IO SQLto_sql, read_sql, read_sql_queryto_sql, read_sql, read_sql_query

Status: Open (in progress).

pandas-dev/pandasnumber 60105

#60105 In pandas-dev/pandas;

· kastkeepitjumpinlikekangaroos opened on Oct 25, 2024

BUG: ArrowDtype Series: Broadcasting Error with Single-Value Arrays in Arithmetic Operations

Arrowpyarrow functionalitypyarrow functionality

Bug

Status: Open.

#60073 In pandas-dev/pandas;

· hombit opened on Oct 18, 2024

BUG: Failures with ArrowDtype(pa.string_view())

Arrowpyarrow functionalitypyarrow functionality

Bug

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

Status: Open.

#60068 In pandas-dev/pandas;

· a10y opened on Oct 18, 2024