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BUG: ensure_index inconsistently coerces np.nan to pd.NaT depending if timezones are present

Bug

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

TimezonesTimezone data dtypeTimezone data dtype

Status: Closed (completed).

#27011 In pandas-dev/pandas;

· by jschendel was closed on Jul 24, 2019

BUG: Series.rename raises error on values accepted by Series constructor.

Bug

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

SeriesSeries data structureSeries data structure

Status: Closed (completed).

#27813 In pandas-dev/pandas;

· by lgmsantos was closed on Aug 22, 2019

Cannot use .ix in IntervaIndex('pandas._libs.interval.IntervalTree' object has no attribute 'get_value')

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

IntervalInterval data typeInterval data type

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

Status: Closed (completed).

#27865 In pandas-dev/pandas;

· by Janhonho was closed on Aug 19, 2019

CI: Unpin 3.7.3 pins

CIContinuous IntegrationContinuous Integration

Status: Closed (completed).

#27867 In pandas-dev/pandas;

· by TomAugspurger was closed on Aug 15, 2019

ValueError when casting 1d data to MultiIndex column with incomplete labels and all data is object (wrong _is_consolidated output?)

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

MultiIndex

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

Status: Closed (completed).

#27841 In pandas-dev/pandas;

· by toobaz was closed on Aug 13, 2019

REGR: np.i0(Series) failing with IndexError on NumPy 1.17.0rc1

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

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

Status: Closed (completed).

#27189 In pandas-dev/pandas;

· by TomAugspurger was closed on Jul 6, 2019

DOC: Contributors section is empty in v0.25.0 Release Notes

Docs

Status: Closed (completed).

#27687 In pandas-dev/pandas;

· by albertvillanova was closed on Aug 1, 2019

Operators between DataFrame and Series fail on large dataframes

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

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

Status: Closed (completed).

#27636 In pandas-dev/pandas;

· by ccharlesgb was closed on Aug 19, 2019

DOC: Unable to import pandas on python 3.5.2

Docs

good first issue

Status: Closed (completed).

#27558 In pandas-dev/pandas;

· by kszucs was closed on Aug 1, 2019

BUG: NonConsolidatebleBlock with ndim 1 'take_nd' with len 1 gives wrong ndim

Bug

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

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

Status: Closed (completed).

#27785 In pandas-dev/pandas;

· by jorisvandenbossche was closed on Aug 7, 2019

Give more precise warning when passing <code>header=-1</code> in <code>pandas.read_csv</code>, or don't throw error

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

IO CSVread_csv, to_csvread_csv, to_csv

Status: Closed (completed).

#27779 In pandas-dev/pandas;

· by MarcoGorelli was closed on Aug 15, 2019

RuntimeWarning in DataFrame.div with fill_value=0

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

Status: Closed (completed).

#26793 In pandas-dev/pandas;

· by TomAugspurger was closed on Aug 20, 2019

Bug in DataFrame.rfloordiv when alignment for different columns and index.

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

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

Status: Closed (completed).

#27464 In pandas-dev/pandas;

· by TomAugspurger was closed on Aug 20, 2019

BUG: Groupby.quantile segfaults for quantile &gt; 1

Groupby

SegfaultNon-Recoverable ErrorNon-Recoverable Error

Status: Closed (completed).

#27470 In pandas-dev/pandas;

· by ghost was closed on Aug 12, 2019

deregister_matplotlib_converters() in 0.25 incorrectly removes Matplotlib converters

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

Visualizationplottingplotting

Status: Closed (completed).

#27479 In pandas-dev/pandas;

· by dstansby was closed on Aug 20, 2019

crosstabs doesn't work with margin and normalize together

Bug

MultiIndex

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

Status: Closed (completed).

#27500 In pandas-dev/pandas;

· by min2bro was closed on Aug 6, 2019

Partial string indexing returns ndarray rather than Series.

DatetimeDatetime data dtypeDatetime data dtype

IndexingRelated to indexing on series/frames, not to indexes themselvesRelated to indexing on series/frames, not to indexes themselves

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

Status: Closed (completed).

#27516 In pandas-dev/pandas;

· by anetbnd was closed on Aug 4, 2019

Groupby Array-Type Quantiles Broken in 0.25.0

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

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

Status: Closed (completed).

#27526 In pandas-dev/pandas;

· by sernst was closed on Aug 22, 2019

IndexError in repr of series objects containing complex numbers with negative imaginary parts

ComplexComplex NumbersComplex Numbers

Output-Formatting__repr__ of pandas objects, to_string__repr__ of pandas objects, to_string

Status: Closed (completed).

#27484 In pandas-dev/pandas;

· by DRMacIver was closed on Jul 25, 2019

pd.isnull() raises AttributeError on Pandas type objects

Bug

good first issue

Status: Closed (completed).

#27482 In pandas-dev/pandas;

· by bribass was closed on Aug 20, 2019

CI: failing

CIContinuous IntegrationContinuous Integration

Status: Closed (completed).

#27541 In pandas-dev/pandas;

· by jreback was closed on Jul 23, 2019

Cleanup CI environment files after #27542

CIContinuous IntegrationContinuous Integration

Status: Closed (completed).

#27546 In pandas-dev/pandas;

· by TomAugspurger was closed on Jul 24, 2019

pd.Series.interpolate() ValueError for some methods with TZ localized index

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

Numeric OperationsArithmetic, Comparison, and Logical operationsArithmetic, Comparison, and Logical operations

TimezonesTimezone data dtypeTimezone data dtype

Status: Closed (completed).

#27548 In pandas-dev/pandas;

· by alorenzo175 was closed on Jul 24, 2019

merge_asof(): cannot use tolerance flag when the index is a TimedeltaIndex

ReshapingConcat, Merge/Join, Stack/Unstack, ExplodeConcat, Merge/Join, Stack/Unstack, Explode

TimedeltaTimedelta data typeTimedelta data type

Status: Closed (completed).

#27642 In pandas-dev/pandas;

· by ianzur was closed on Aug 22, 2019

IndexError: tuple index out of range after upgrade to 0.25

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

Status: Closed (completed).

#27775 In pandas-dev/pandas;

· by Foadsf was closed on Aug 9, 2019