Skip to content

Issues: pandas-dev/pandas

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Clear current search query, filters, and sorts
145 Open 243 Closed
145 Open 243 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

BUG(string dtype): Arithmetic operations between Series with string dtype index API - Consistency Internal Consistency of API/Behavior Bug Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data
#61425 opened May 10, 2025 by rhshadrach
@samruddhibaviskar11
2
BUG: Inconsistent index type when using read_csv with string[pyarrow] dtype API - Consistency Internal Consistency of API/Behavior Bug IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#61145 opened Mar 19, 2025 by ptth222
2 of 3 tasks
4
API (string dtype): implement hierarchy (NA > NaN, pyarrow > python) for consistent comparisons between different string dtypes API - Consistency Internal Consistency of API/Behavior Numeric Operations Arithmetic, Comparison, and Logical operations Strings String extension data type and string data
#61138 opened Mar 17, 2025 by jorisvandenbossche Loading…
2 tasks
2.3
1
12
Improve the apply/map APIs API - Consistency Internal Consistency of API/Behavior API Design Apply Apply, Aggregate, Transform, Map Needs Discussion Requires discussion from core team before further action
#61128 opened Mar 15, 2025 by datapythonista
@HoqueUM
6
API (string dtype): comparisons between different string classes API - Consistency Internal Consistency of API/Behavior Needs Discussion Requires discussion from core team before further action Numeric Operations Arithmetic, Comparison, and Logical operations Strings String extension data type and string data
#60639 opened Jan 1, 2025 by rhshadrach 2.3
1
27
BUG: inconsistent return types from __getitem__ vs iteration API - Consistency Internal Consistency of API/Behavior Bug Needs Discussion Requires discussion from core team before further action
#60560 opened Dec 13, 2024 by gboeing
3 tasks done
6
BUG: transform("cumcount") returns a Series instead of a Dataframe. API - Consistency Internal Consistency of API/Behavior Bug Groupby Needs Discussion Requires discussion from core team before further action
#60551 opened Dec 12, 2024 by ClaudioSalvatoreArcidiacono
2 of 3 tasks
10
BUG?: using None as replacement value in replace() typically upcasts to object dtype API - Consistency Internal Consistency of API/Behavior Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate replace replace method
#60284 opened Nov 12, 2024 by jorisvandenbossche
2
ERR: consistent error messages for unsupported setitem values API - Consistency Internal Consistency of API/Behavior Error Reporting Incorrect or improved errors from pandas Indexing Related to indexing on series/frames, not to indexes themselves
#60218 opened Nov 6, 2024 by jorisvandenbossche
4
BUG: user defined function does not work with DataFrame.apply API - Consistency Internal Consistency of API/Behavior Bug MultiIndex Needs Discussion Requires discussion from core team before further action
#59908 opened Sep 27, 2024 by shobsi
3 tasks done
1
API: handling of missing values in Index.__contains__ API - Consistency Internal Consistency of API/Behavior Index Related to the Index class or subclasses Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate
#59765 opened Sep 9, 2024 by jorisvandenbossche 4.0
2
QST: DataFrame.plot() vs Series.plot() have inconsistency wrt reuse plot API - Consistency Internal Consistency of API/Behavior Needs Discussion Requires discussion from core team before further action Usage Question Visualization plotting
#59716 opened Sep 5, 2024 by pollo-coder
2 tasks done
2
ERR: consistent error messages for unsupported reduction operations API - Consistency Internal Consistency of API/Behavior Error Reporting Incorrect or improved errors from pandas Reduction Operations sum, mean, min, max, etc.
#59580 opened Aug 22, 2024 by jorisvandenbossche
BUG: inconsistent indices in GroupByRolling when selecting or not selecting subset of columns API - Consistency Internal Consistency of API/Behavior Bug Groupby Window rolling, ewma, expanding
#59567 opened Aug 20, 2024 by inigohidalgo
2 of 3 tasks
7
API: pd.StringDtype.value_counts should return pd.Int64Dtype API - Consistency Internal Consistency of API/Behavior API Design Arrow pyarrow functionality Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays.
#59346 opened Jul 29, 2024 by WillAyd
1 of 3 tasks
4
DISC: Supporting numpy StringDType in Pandas API - Consistency Internal Consistency of API/Behavior API Design Compat pandas objects compatability with Numpy or Python functions Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data
#58503 opened May 1, 2024 by lithomas1
7
BUG: DataFrameGroupBy.__getitem__ fails with tuples on multi-level column objects API - Consistency Internal Consistency of API/Behavior Bug Groupby Indexing Related to indexing on series/frames, not to indexes themselves
#58282 opened Apr 16, 2024 by tehunter
3 tasks done
1
BUG: API Inconsistency between numeric_only and select_dtypes(["number"]) API - Consistency Internal Consistency of API/Behavior Bug
#58210 opened Apr 10, 2024 by WillAyd
3 tasks done
2
API: Consistently support numeric_only in groupby ops API - Consistency Internal Consistency of API/Behavior Groupby
#56946 opened Jan 18, 2024 by rhshadrach
17 tasks
3
BUG: Can't cast pyarrow floats to ints API - Consistency Internal Consistency of API/Behavior Arrow pyarrow functionality Astype
#56673 opened Dec 29, 2023 by mattharrison
2 of 3 tasks
1
ENH: Add limit_area to groupby.ffill/bfill API - Consistency Internal Consistency of API/Behavior Enhancement Groupby Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action
#56533 opened Dec 17, 2023 by rhshadrach
BUG: .loc[:, 'a'] = is inplace when assigning Series, but not DataFrame API - Consistency Internal Consistency of API/Behavior Bug Indexing Related to indexing on series/frames, not to indexes themselves inplace Relating to inplace parameter or equivalent
#56223 opened Nov 28, 2023 by MarcoGorelli
3 tasks done
1
API: dt64 resolution for PeriodIndex.to_timestamp API - Consistency Internal Consistency of API/Behavior Index Related to the Index class or subclasses Period Period data type Timestamp pd.Timestamp and associated methods
#56164 opened Nov 25, 2023 by jbrockmendel
REF/API/DEPR: _holds_integer checks in plotting API - Consistency Internal Consistency of API/Behavior Deprecate Functionality to remove in pandas Refactor Internal refactoring of code Visualization plotting
#55897 opened Nov 9, 2023 by jbrockmendel
3 tasks done
1
@lazarust
2
API: be stricter in array_equivalent_object API - Consistency Internal Consistency of API/Behavior Numeric Operations Arithmetic, Comparison, and Logical operations
#55492 opened Oct 11, 2023 by jbrockmendel
ProTip! no:milestone will show everything without a milestone.