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BUG: DataFrame.agg with multiple cum functions creates wrong result

ApplyApply, Aggregate, Transform, MapApply, Aggregate, Transform, Map

BlockerBlocking issue or pull request for an upcoming releaseBlocking issue or pull request for an upcoming release

Bug

Groupby

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

Status: Closed (completed).

#35490 In pandas-dev/pandas;

· by qinxuye was closed on Aug 14, 2020

BUG: Issue with latest version (1.1.0) of pandas when imported

Bug

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

Status: Closed (completed).

#35497 In pandas-dev/pandas;

· by rakekris was closed on Aug 16, 2020

BUG: pandas 1.1.0 MemoryError using .astype("string") which worked using pandas 1.0.5

Bug

PerformanceMemory or execution speed performanceMemory or execution speed performance

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

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

Status: Closed (completed).

#35499 In pandas-dev/pandas;

· by ldacey was closed on Aug 17, 2020

BUG: Shift on DataFrame which has more than 1 block creates wrong result

Bug

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

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

Status: Closed (completed).

#35488 In pandas-dev/pandas;

· by qinxuye was closed on Aug 7, 2020

RLS: 1.1.1

Release

Status: Closed (completed).

#35489 In pandas-dev/pandas;

· by simonjayhawkins was closed on Aug 25, 2020

BUG: use_inf_as_na options raises value error for read_csv

Bug

IO CSVread_csv, to_csvread_csv, to_csv

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

Status: Closed (completed).

#35493 In pandas-dev/pandas;

· by mhaselsteiner was closed on Aug 3, 2020

QST: is the new behavior of GroupByRolling in v1.1.0 intended?

Groupby

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

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#35486 In pandas-dev/pandas;

· by itholic was closed on Aug 6, 2020

BUG: dataframe.apply() loops on first row when applied method attempts to modify the row

ApplyApply, Aggregate, Transform, MapApply, Aggregate, Transform, Map

Bug

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

Status: Closed (completed).

#35462 In pandas-dev/pandas;

· by nicolasrozain was closed on Aug 11, 2020

BUG: output of df.to_string depends on whether columns is a CategoricalIndex or not

Bug

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

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

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

Status: Closed (completed).

#35439 In pandas-dev/pandas;

· by topper-123 was closed on Aug 3, 2020

BUG: pd.testing.assert_frame_equal(..., check_exact=True) raises assertion error if any columns are not numeric

Bug

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

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Closed (completed).

#35446 In pandas-dev/pandas;

· by ivirshup was closed on Aug 10, 2020

REGR: DataFrame.to_numpy(dtype=str) raises RuntimeError in pandas 1.1.0

Bug

Dtype ConversionsUnexpected or buggy dtype conversionsUnexpected or buggy dtype conversions

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

Status: Closed (completed).

#35455 In pandas-dev/pandas;

· by aciba90 was closed on Aug 8, 2020

BUG: 1.1.0 breaks custom indexer support in groupby().rolling()

Bug

Status: Closed (completed).

#35557 In pandas-dev/pandas;

· by WhistleWhileYouWork was closed on Aug 12, 2020

BUG: Incompatible tolerance error in merge_asof with comaptible types.

Bug

good first issue

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

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

Status: Closed (completed).

#35558 In pandas-dev/pandas;

· by jkibele was closed on Aug 13, 2020

BUG: A read-only DataFrame cannot be .diff()'ed

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

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

Status: Closed (completed).

#35559 In pandas-dev/pandas;

· by dycw was closed on Aug 14, 2020

BUG: Closed parameter in rolling function producing ValueError

Bug

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#35549 In pandas-dev/pandas;

· by nrcjea001 was closed on Aug 10, 2020

BUG: Segmentation fault in RollingGroupby.mean() with center=True and input with odd length

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

SegfaultNon-Recoverable ErrorNon-Recoverable Error

Windowrolling, ewma, expandingrolling, ewma, expanding

Status: Closed (completed).

#35552 In pandas-dev/pandas;

· by wfvining was closed on Aug 7, 2020

BUG: series.truncate doesn't return the correct value in pandas 1.1.0

Bug

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).

#35544 In pandas-dev/pandas;

· by gabicca was closed on Aug 7, 2020

BUG: Pandas 1.1.0 apply function with axis=1 seems to mishandle the rows

Bug

Duplicate ReportDuplicate issue or pull requestDuplicate issue or pull request

Status: Closed (completed).

#35634 In pandas-dev/pandas;

· by arshad171 was closed on Aug 10, 2020

BUG: ValueError: cannot convert float NaN to integer - on dataframe.reset_index()

Duplicate ReportDuplicate issue or pull requestDuplicate issue or pull request

Status: Closed (completed).

#35657 In pandas-dev/pandas;

· by capelastegui was closed on Aug 14, 2020

BUG: pd.to_timedelta() fails when arg is a Series with Int64 dtype

Bug

DatetimeDatetime data dtypeDatetime data dtype

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

Status: Closed (completed).

#35574 In pandas-dev/pandas;

· by egoddard was closed on Aug 7, 2020

BUG: Pandas Styler cell_ids Arg

Bug

IO HTMLread_html, to_html, Styler.apply, Styler.applymapread_html, to_html, Styler.apply, Styler.applymap

Status: Closed (completed).

#35586 In pandas-dev/pandas;

· by attack68 was closed on Aug 7, 2020

BUG: interpolate gives a TypeError on empty dataframes

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

Bug

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

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

Status: Closed (completed).

#35598 In pandas-dev/pandas;

· by sanderland was closed on Aug 17, 2020

REGR: ValueError: cannot convert float NaN to integer - on dataframe.reset_index() in pandas 1.1.0

Bug

DatetimeDatetime data dtypeDatetime data dtype

MultiIndex

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

Status: Closed (completed).

#35606 In pandas-dev/pandas;

· by ndhansen was closed on Aug 14, 2020

Attribute "dtype" are different error with testing.assert_frame_equal

Bug

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

Testingpandas testing functions or related to the test suitepandas testing functions or related to the test suite

Status: Closed (completed).

#35715 In pandas-dev/pandas;

· by tejasj654 was closed on Aug 17, 2020

DOC: downcast argument for pd.to_numeric should be integer, not int

Docs

good first issue

Status: Closed (completed).

#35760 In pandas-dev/pandas;

· by languitar was closed on Aug 19, 2020