Search results

BUG: StringArray with NA behaves different to numpy object array for elementwise comparisons

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

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

Needs TriageIssue that has not been reviewed by a pandas team memberIssue that has not been reviewed by a pandas team member

StringsString extension data type and string dataString extension data type and string data

Status: Open.

#62802 In pandas-dev/pandas;

· ssche opened on Oct 22, 2025

DISC: Supporting numpy StringDType in Pandas

API - ConsistencyInternal Consistency of API/BehaviorInternal Consistency of API/Behavior

API Design

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

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

StringsString extension data type and string dataString extension data type and string data

Status: Open.

#58503 In pandas-dev/pandas;

· lithomas1 opened on May 1, 2024

Update _get_dst_hours Cython annotation when numpy 2.0 is the minium version

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

InternalsRelated to non-user accessible pandas implementationRelated to non-user accessible pandas implementation

Status: Open.

#57154 In pandas-dev/pandas;

· mroeschke opened on Jan 30, 2024

BUG: Pandas 2.2 breaks SQLAlchemy 1.4 compatibility

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

IO SQLto_sql, read_sql, read_sql_queryto_sql, read_sql, read_sql_query

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

Status: Open.

#57049 In pandas-dev/pandas;

· miraculixx opened on Jan 24, 2024

· 

2.3.4

BUG: <code>to_timedelta</code> raises unexpected <code>OutOfBoundsTimedelta</code> error with development version of NumPy

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

TimedeltaTimedelta data typeTimedelta data type

Status: Open.

#56996 In pandas-dev/pandas;

· spencerkclark opened on Jan 21, 2024

BUG: New versions of numpy breaks log/where using pandas series

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

ufuncs__array_ufunc__ and __array_function____array_ufunc__ and __array_function__

Status: Open.

#54900 In pandas-dev/pandas;

· rikardn opened on Aug 31, 2023

DEPR: values casting dt64tz, Interval, Period

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DatetimeDatetime data dtypeDatetime data dtype

DeprecateFunctionality to remove in pandasFunctionality to remove in pandas

ExtensionArrayExtending pandas with custom dtypes or arrays.Extending pandas with custom dtypes or arrays.

IntervalInterval data typeInterval data type

PeriodPeriod data typePeriod data type

Status: Open.

#54717 In pandas-dev/pandas;

· jbrockmendel opened on Aug 23, 2023

BUG: numexpr 2.85 changed integer overflow handling, failing a test

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

expressionspd.eval, querypd.eval, query

Status: Open.

#54546 In pandas-dev/pandas;

· rebecca-palmer opened on Aug 14, 2023

BUG: df.query error when using local variable substitution syntax with numexpr 2.8.5 (forbidden control characters)

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

DependenciesRequired and optional dependenciesRequired and optional dependencies

expressionspd.eval, querypd.eval, query

Status: Open.

#54449 In pandas-dev/pandas;

· JosephWagner opened on Aug 7, 2023

BUG: Regression on np.logical_or, it behaves erraticly from 2.0, breaking backwards compatibility

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

RegressionFunctionality that used to work in a prior pandas versionFunctionality that used to work in a prior pandas version

ufuncs__array_ufunc__ and __array_function____array_ufunc__ and __array_function__

Status: Open.

#54416 In pandas-dev/pandas;

· PabloRuizCuevas opened on Aug 4, 2023

BUG: numpy nan_to_num functions not outputing DataFrames

Bug

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

Status: Open.

#54078 In pandas-dev/pandas;

· lcrmorin opened on Jul 11, 2023

Should internal usages of sorting with numpy use <code>kind="stable"</code>?

Compatpandas objects compatability with Numpy or Python functionspandas objects compatability with Numpy or Python functions

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

Status: Open.

#53558 In pandas-dev/pandas;

· mroeschke opened on Jun 8, 2023