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Issues list

BUG: pre-commit version 4.0.0 is required Needs Discussion Requires discussion from core team before further action
#61328 opened Apr 21, 2025 by WillAyd updated Apr 24, 2025
3 tasks done
11
BUG: assignment via loc silently fails with differing dtypes Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61346 opened Apr 23, 2025 by zbs updated Apr 24, 2025
3 tasks done
1
BUG: Series of bools with length mismatch does not raise when used with .iloc Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61344 opened Apr 23, 2025 by arthurlw updated Apr 23, 2025
3 tasks done
ENH: Make DataFrame.filter accept filters in new formats Filters e.g. head, tail, nth Needs Discussion Requires discussion from core team before further action
#61317 opened Apr 20, 2025 by datapythonista updated Apr 23, 2025
7
DOC: Series.update throws a FutureWarning about def[col] = df[col].method but .update returns None and works inplace Copy / view semantics Needs Discussion Requires discussion from core team before further action Warnings Warnings that appear or should be added to pandas
#59788 opened Sep 13, 2024 by spawn-guy updated Apr 23, 2025
1 task done
9
Improve plotting Timedelta on y-axis (Timedelta string representation) Enhancement Visualization plotting
#17553 opened Sep 15, 2017 by s-celles updated Apr 23, 2025
7
ENH: Support dict to pd.set_option for cleaner code API Design Deprecate Functionality to remove in pandas Enhancement
#61093 opened Mar 10, 2025 by yasirroni updated Apr 23, 2025
1 of 3 tasks
2
@arthurlw
20
DEPR: Some dropna behaviors in DataFrame.pivot_table Deprecate Functionality to remove in pandas Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#53521 opened Jun 4, 2023 by rhshadrach updated Apr 23, 2025
3
BUG: .map & .apply would convert element type for extension array. Apply Apply, Aggregate, Transform, Map Bug NA - MaskedArrays Related to pd.NA and nullable extension arrays
#60766 opened Jan 22, 2025 by colinfang updated Apr 23, 2025
2 of 3 tasks
1
@KevsterAmp
6
BUG: Concatenating data frames with MultiIndex with datetime64[ms] dtype introduces NaT values to the index Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61342 opened Apr 23, 2025 by shchur updated Apr 23, 2025
2 of 3 tasks
DOC: Reindexing behaviour of dataframe column-assignment missing Docs good first issue Indexing Related to indexing on series/frames, not to indexes themselves
#39845 opened Feb 16, 2021 by fish-face updated Apr 23, 2025
1
@marco-georgaklis
9
BUG: df.plot() "Subplots" changes behavior of how values are stacked using the "Stacked" property Bug Visualization plotting
#61018 opened Feb 28, 2025 by eicchen02 updated Apr 22, 2025
3 tasks done
1
@eicchen02
4
BUG: memory issues with string[pyarrow] after sorted pd.merge Arrow pyarrow functionality Bug Closing Candidate May be closeable, needs more eyeballs Upstream issue Issue related to pandas dependency
#61322 opened Apr 20, 2025 by noahblakesmith updated Apr 22, 2025
3 tasks done
@arjuanwall @phiofuni
@bingbhakdibhumi @eenkhbol
5
BUG: .to_parquet fails with schema for string[pyarrow] but not string[python] Arrow pyarrow functionality Bug Closing Candidate May be closeable, needs more eyeballs Upstream issue Issue related to pandas dependency
#61316 opened Apr 20, 2025 by noahblakesmith updated Apr 22, 2025
3 tasks done
1
BUG: 'ArrowExtensionArray' object has no attribute 'max' when passing pyarrow-backed series to .iloc Arrow pyarrow functionality Bug Indexing Related to indexing on series/frames, not to indexes themselves
#61311 opened Apr 19, 2025 by MarcoGorelli updated Apr 22, 2025
3 tasks done
1
BUG: DataFrame.to_markdown exception when a cell has numpy.array type Bug IO Data IO issues that don't fit into a more specific label Nested Data Data where the values are collections (lists, sets, dicts, objects, etc.).
#61337 opened Apr 22, 2025 by omarsaad98 updated Apr 22, 2025
2 of 3 tasks
1
ENH: Add warning when DataFrame.groupby drops NA keys Enhancement Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action
#61339 opened Apr 22, 2025 by tehunter updated Apr 22, 2025
2 of 3 tasks
2
ENH: Export (a subset of?) pandas._typing for type checking Enhancement Typing type annotations, mypy/pyright type checking
#55231 opened Sep 21, 2023 by caneff updated Apr 22, 2025
1 of 3 tasks
31
ENH: adding a filter (and bold) to header when writing to excel Enhancement IO Excel read_excel, to_excel
#61194 opened Mar 28, 2025 by simonaubertbd updated Apr 22, 2025
1 of 3 tasks
@janeq6
10
ENH: The row and column indexing mechanism of your dataframe is inefficient, leading to errors and unnecessary time consumption Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#61230 opened Apr 4, 2025 by zyy37 updated Apr 22, 2025
1 of 3 tasks
1
TST: mixed_int_string Index Index Related to the Index class or subclasses Testing pandas testing functions or related to the test suite
#54072 opened Jul 10, 2023 by jbrockmendel updated Apr 22, 2025
3
@josephwillard @Pranav-Wadhwa
@PurnashisHazra @yoav-edelist @xaris96
21
BUG: to_dict(orient='dict') does not convert np.nan to None in Pandas 2.2.3 Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61323 opened Apr 21, 2025 by uyauhkk01 updated Apr 21, 2025
1 of 3 tasks
ENH: The method of obtaining a certain cell or slice of the dataframe is confusing and unclear Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#61232 opened Apr 4, 2025 by zyy37 updated Apr 21, 2025
1 of 3 tasks
2
ENH: Enable nsmallest/nlargest on object dtype Enhancement Filters e.g. head, tail, nth Sorting e.g. sort_index, sort_values
#61166 opened Mar 22, 2025 by Gri72 updated Apr 21, 2025
@RutujaGhodake
22
BUG: datetime64 can't be compared with pyarrow-backed variant Bug Datetime Datetime data dtype Numeric Operations Arithmetic, Comparison, and Logical operations
#60937 opened Feb 15, 2025 by MarcoGorelli updated Apr 20, 2025
3 tasks done
@AshleySonny
5
ProTip! no:milestone will show everything without a milestone.