Last Issues Related to alignment

tbsexton tbsexton
2023-01-26

BUG: `sparse.to_coo()` with categorical multiindex gives `iterators.c:185: bad argument to internal function`

0 Likes 0 Replies
kapacuk kapacuk
2023-01-26

BUG: A trivial C++ module crashes if you import it after pandas

0 Likes 0 Replies
plutonium-94 plutonium-94
2023-01-26

BUG: GroupBy.idxmin/idxmax returns wrong dtype on empty Series/DataFrame

0 Likes 1 Replies
Franky1 Franky1
2023-01-26

BUG: df.to_excel() makes some default formatting

0 Likes 1 Replies

PERF: to_dict('list') method slow

0 Likes 2 Replies
tbenthompson tbenthompson
2023-01-25

Pandas `groupby(...).apply(f)` amplifies TypeError exceptions.

0 Likes 2 Replies
mroeschke mroeschke
2023-01-25

DEPR: *args, **kwargs on resample methods

0 Likes 1 Replies
aha79 aha79
2023-01-25

PERF: 'Catgorical.from_codes' slower than necessary for large datasets

0 Likes 0 Replies

BUG: DatetimeIndex() constructor with mixed timezones gives confusing TypeError

0 Likes 0 Replies
MarcoGorelli MarcoGorelli
2023-01-25

API allow for `format='mixed'` in to_datetime

0 Likes 0 Replies
jrbourbeau jrbourbeau
2023-01-25

BUG: `DataFrame.convert_dtypes()` converting `object` to `pd.ArrowDtype` instead of `pd.StringDtype`

0 Likes 0 Replies
jrbourbeau jrbourbeau
2023-01-25

BUG: `object`s not converted in `DataFrame.convert_dtypes()` on empty `DataFrame`

0 Likes 2 Replies
Styrke Styrke
2023-01-25

DOC: seconds attribute of timedelta surprises and no warning is given in the docs

0 Likes 3 Replies
pickfire pickfire
2023-01-25

BUG: Incorrect date format in to_excel xlsxwriter converter

0 Likes 2 Replies
erenirmak erenirmak
2023-01-25

df.to_sql() Tables cannot be truncated or dropped using .execute() function

0 Likes 0 Replies
jrbourbeau jrbourbeau
2023-01-25

PERF: Serialized `string[pyarrow]` data larger than `object`

0 Likes 1 Replies
j-bennet j-bennet
2023-01-25

BUG: ValueError when creating a TimedeltaIndex with np.timedelta64

0 Likes 3 Replies
musshorn musshorn
2023-01-24

BUG: xl.parse index_col ignoring skiprows

0 Likes 1 Replies
jbrockmendel jbrockmendel
2023-01-24

ENH: .interpolate() with EA Dtypes

0 Likes 0 Replies
hagrid67 hagrid67
2023-01-23

BUG: DateTimeIndex asof() broken by mixed frequency / non-midnight times

0 Likes 2 Replies
carlos-rian carlos-rian
2023-01-23

BUG: NumPy 1.23.2 may not yet support Python 3.11

0 Likes 4 Replies
daureg daureg
2023-01-22

BUG: `maybe_get_tz` raises `pytz.exceptions.UnknownTimeZoneError` when building a timezone from a filename

0 Likes 1 Replies
MarcoGorelli MarcoGorelli
2023-01-20

DEPR deprecate mixed timezone offsets with utc=False?

0 Likes 2 Replies
mvashishtha mvashishtha
2023-01-20

BUG: first() and last() compare times to first/last row according to position rather than first/last row according to index time

0 Likes 0 Replies
mvashishtha mvashishtha
2023-01-20

BUG: first(’1H’) gives KeyError: Timestamp('2022-01-01 01:00:00') when it should select first 4 rows

0 Likes 1 Replies
mvashishtha mvashishtha
2023-01-20

BUG: first(’2s’) with index with null in middle gives 1st row instead of first 2

0 Likes 0 Replies
rhshadrach rhshadrach
2023-01-19

BUG: Series.replace with categorical dtype and null values coerces to object

0 Likes 1 Replies

BUG: timestamps are formatted without zero-padded years

0 Likes 0 Replies
mvashishtha mvashishtha
2023-01-19

BUG: when start_time > end_time, between_time includes rows where index is null

0 Likes 0 Replies
hottwaj hottwaj
2023-01-19

BUG: numpy.maximum(pandas.Timestamp(...), pandas.Series(..., dtype='datetime64')) fails with TypeError

0 Likes 1 Replies
MarcoGorelli MarcoGorelli
2023-01-19

API should empty `._get_bool_data` have RangeIndex?

0 Likes 1 Replies

DOC/WEB: Move not versioned docs to the web

0 Likes 0 Replies
rhshadrach rhshadrach
2023-01-18

BUG: Duplicate columns get duplicated in DataFrame.align

0 Likes 2 Replies
mvashishtha mvashishtha
2023-01-18

BUG: between_time ignores tzinfo of start_time and end_time

0 Likes 0 Replies
czroth czroth
2023-01-18

BUG: df.groupby().resample()[[cols]] raise KeyError when resampling on index

0 Likes 0 Replies
mvashishtha mvashishtha
2023-01-18

BUG: string date parsing for at_time and indexer_at_time have many inconsistencies with indexer_at_time documentation; should be more like between_time

0 Likes 0 Replies
snowman2 snowman2
2023-01-18

DOC: Note itertuples created with `rename=True`

0 Likes 5 Replies

DOC: Preview rendered documentation of PRs

0 Likes 3 Replies
mattf mattf
2023-01-18

DOC: DataFrame.count_values supports single label

0 Likes 2 Replies

DOC: Use rst instead of markdown in release instructions

0 Likes 3 Replies

DOC: Code of Conduct text on webpage & GitHub aren't aligned

0 Likes 1 Replies
partev partev
2023-01-18

BUG: "grid" parameter is ignored by scatter_matrix function

0 Likes 0 Replies
nicolaerosia nicolaerosia
2023-01-18

BUG: pandas 1.5.2 segfault with pypy 3.9-7.3.11

1 Likes 2 Replies

ADMIN: Remove pandas-core-inactive team

0 Likes 4 Replies
MarcoGorelli MarcoGorelli
2023-01-12

BUG: .max() gives wrong answer for non-nanosecond datetimeindex

0 Likes 3 Replies
dhendry dhendry
2023-01-12

BUG: style.background_gradient() fails on nullable series (ex: Int64) with null values

0 Likes 1 Replies
Dr-Irv Dr-Irv
2023-01-12

DEPR: For v2.0, Deprecate using np.nan as the missing value type in pd.Categorical and use pd.NA instead

0 Likes 5 Replies
MarcoGorelli MarcoGorelli
2023-01-12

CI test_constructor_signed_int_overflow_deprecation failing in 1.5.x branch

0 Likes 2 Replies
ace-e4s ace-e4s
2023-01-12

BUG: to_csv attempts to download and write to in-memory stream instead of failing when http url is provided

0 Likes 0 Replies
ryandvmartin ryandvmartin
2023-01-12

BUG: accessing `.dtypes` in a subclass constructor with large frames causes infinite loop

0 Likes 2 Replies
MarcoGorelli MarcoGorelli
2023-01-12

API revert inference of resolution when parsing string in Timestamp?

0 Likes 6 Replies
AlenkaF AlenkaF
2023-01-12

DOC: How to install nightly pandas wheels

1 Likes 2 Replies
fpavogt fpavogt
2023-01-12

BUG: numpy>1.24 triggers `RuntimeWarning` when converting NaN via `pd.to_datetime()`

0 Likes 1 Replies
MarcoGorelli MarcoGorelli
2023-01-12

CI can't install nightly-numpy on macos

0 Likes 4 Replies
phofl phofl
2023-01-12

CI: Python 3.11 pipelines are failing

0 Likes 1 Replies
jbrockmendel jbrockmendel
2023-01-12

BUG: Index.get_indexer with mixed-reso datetime64s

0 Likes 9 Replies
rhshadrach rhshadrach
2023-01-11

API: groupby(...).agg with dict argument

0 Likes 6 Replies
jrbourbeau jrbourbeau
2023-01-11

BUG: `RuntimeWarning` emitted when computing `quantile` on all `pd.NA` `Series`

0 Likes 1 Replies
pyrito pyrito
2023-01-11

BUG: `groupby.any` and `groupby.all` returning differing results for groups only containing nulls

0 Likes 8 Replies
lithomas1 lithomas1
2023-01-11

API/BUG: pd.concat doesn't copy indexes if with axis=1 and copy=True when they are the same

0 Likes 3 Replies
briandamaged briandamaged
2023-01-10

BUG: read_sas(..) interprets some zeros as 5.397605e-79

0 Likes 2 Replies
MarcoGorelli MarcoGorelli
2023-01-04

STYLE rename fixtures and enable redefined-outer-name on tests

0 Likes 0 Replies
MarcoGorelli MarcoGorelli
2023-01-03

CI latest ipython broke typing

0 Likes 0 Replies

API: GroupBy.agg() numeric_only deprecation with custom function

0 Likes 9 Replies
kenha37 kenha37
2023-01-03

PERF: objects_to_datetime64ns performance degradation for datetime columns

0 Likes 10 Replies

API: CoW and explicit `copy` keyword in DataFrame/Series methods

0 Likes 2 Replies

BUG: Wrong Result when subtracting BusinessHour offset

0 Likes 4 Replies
MarcoGorelli MarcoGorelli
2023-01-02

API add `date_format` to read_csv

0 Likes 5 Replies
jiahe224 jiahe224
2023-01-01

BUG: the kind parameter of pandas.Series.resample contradicts the closed parameter

0 Likes 0 Replies
BasLaanPAM BasLaanPAM
2022-12-30

BUG: DataFrame.copy(deep=True) doesn't prevent original DataFrame from being modified

0 Likes 2 Replies
mcp292 mcp292
2022-12-30

ENH: Change `MultiIndex.get_level_values()` to `MultiIndex.get_level()`

0 Likes 7 Replies
mcp292 mcp292
2022-12-29

DOC: MultiIndex methods not grouped together

0 Likes 1 Replies
jborman-exos jborman-exos
2022-12-29

BUG: `Series.isnull()` and `DataFrame.isnull()` do not respect `use_inf_as_na` option

0 Likes 1 Replies
alonme alonme
2022-12-29

ENH: "one-to-one" validation in left join should ignore right side non unique that are not in left

0 Likes 1 Replies
frodeseverin frodeseverin
2022-12-29

DOC: IO tools OpenDocument spreadsheets har wrong information on missing implementation for writing ODF-files

0 Likes 2 Replies
rhshadrach rhshadrach
2022-12-29

BUG: DataFrameGroupBy.value_counts fails with a TimeGrouper

0 Likes 4 Replies
rhshadrach rhshadrach
2022-12-29

BUG: SeriesGroupBy.value_counts sorts when sort=False

0 Likes 0 Replies
petrov826 petrov826
2022-12-28

BUG: unwanted type conversion when partial reassigning

0 Likes 3 Replies
MarcoGorelli MarcoGorelli
2022-12-28

PERF use regular expression in format_is_iso?

0 Likes 1 Replies

BUG: Groupby with rolling on MultiIndex duplicates index levels

0 Likes 2 Replies
MarcoGorelli MarcoGorelli
2022-12-28

ERR: "day out of range" doesn't show position of error

0 Likes 0 Replies
Itayazolay Itayazolay
2022-12-28

BUG: Order of dict items in DataFrame.from_dict changes the result dataframe

0 Likes 1 Replies
sadish-d sadish-d
2022-12-28

ENH: Set na_filter=False as default.

0 Likes 2 Replies
serge2016 serge2016
2022-12-28

ENH: Add decimal parameter to to_excel

0 Likes 1 Replies

BUG: JSON serialization with orient split fails roundtrip with MultiIndex

0 Likes 9 Replies
bollard bollard
2022-12-27

ENH: Add masked support for rolling operations

0 Likes 0 Replies
bollard bollard
2022-12-27

BUG: `TypeError` when mixing extension array dtypes in `mask`

0 Likes 5 Replies
GanjinZero GanjinZero
2022-12-27

No results using expandaln when querying uniref30

0 Likes 2 Replies

BUG: Using datetime global in query expression raises UndefinedVariableError

0 Likes 2 Replies
YMaster7 YMaster7
2022-12-24

BUG: `xticklables` is not correctly set when using `df.plot.box` with group-by

0 Likes 0 Replies
rhshadrach rhshadrach
2022-12-23

BUG: Grouper specified by key not regarded as in-axis

0 Likes 0 Replies

BUG: inconsistent handling of exact=False case in to_datetime parsing

0 Likes 2 Replies

Datetime parsing (PDEP-4): allow mixture of ISO formatted strings?

0 Likes 17 Replies

Datetime parsing (PDEP-4): should time strings be inferred?

0 Likes 3 Replies
rhshadrach rhshadrach
2022-12-23

DEPR: Unnecessary kwargs in groupby ops

0 Likes 0 Replies
rhshadrach rhshadrach
2022-12-23

ENH: Use explicit arguments in DataFrameGroupBy.describe

0 Likes 9 Replies
rhshadrach rhshadrach
2022-12-23

DEPR: axis argument in groupby ops

0 Likes 0 Replies
bollard bollard
2022-12-22

BUG: Rolling.mean downcasts extension dtypes

0 Likes 1 Replies
abielr abielr
2022-12-22

ENH: Adding support for calamine as Excel reader engine

1 Likes 4 Replies
butterbach butterbach
2022-12-22

BUG: Dataclass Str -> Pandas Object instead of StringDtype

0 Likes 2 Replies
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