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1,829 Open 10,337 Closed
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Issues list

BUG: use of iloc with heterogeneous DataFrame sometimes performs undocumented conversions Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61537 opened Jun 2, 2025 by illbebach
2 of 3 tasks
BUG: Fix pivot_table margins to include NaN groups when dropna=False Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61524 opened May 31, 2025 by iabhi4 Loading…
4 tasks done
1
3
BUG: DataFrame.sample weights not required to sum to less than 1 Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Deprecate Functionality to remove in pandas Needs Discussion Requires discussion from core team before further action
#61516 opened May 29, 2025 by dougj892
3 tasks done
8
BUG: margin for pivot_table is incorrect with NA column/index values Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61509 opened May 28, 2025 by vtraag
3 tasks done
1
2
BUG: Print alignement problem with some unicode characters Bug Needs Discussion Requires discussion from core team before further action Unicode Unicode strings
#61502 opened May 26, 2025 by mhooreman
2 of 3 tasks
4
BUG: Passing string[pyarrow] to the dtype parameter of e.g. csv_read() does produce a string type Series Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61496 opened May 26, 2025 by ClauPet
3 tasks done
@JoshFlenniken
2
BUG: If you add _metadata to a custom subclass of Series, the sequence name is lost when indexing Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61491 opened May 24, 2025 by vitalizzare
3 tasks done
1
BUG: zfill with pyarrow string Arrow pyarrow functionality Bug
#61485 opened May 23, 2025 by williambdean
2 of 3 tasks
1
@iabhi4
2
BUG: date_range behaviour is inconsistent when using inclusive=right Bug Datetime Datetime data dtype Needs Discussion Requires discussion from core team before further action
#61483 opened May 23, 2025 by sebastian-east
3 tasks done
1
BUG: Pandas concat raises RuntimeWarning: '<' not supported between instances of 'int' and 'tuple', sort order is undefined for incomparable objects with multilevel columns Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61477 opened May 22, 2025 by ButteryPaws
3 tasks done
1
BUG: assert_frame_equal(check_dtype=False) fails when comparing two DFs containing pd.NA that only differ in dtype (object vs Int32) Bug ExtensionArray Extending pandas with custom dtypes or arrays. good first issue Testing pandas testing functions or related to the test suite
#61473 opened May 21, 2025 by michiel-de-muynck
2 of 3 tasks
1
6
BUG: pandas.pivot_table margins, dropna and observed parameters not producing expected result Bug Needs Info Clarification about behavior needed to assess issue Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61469 opened May 21, 2025 by hugotomasf
2 of 3 tasks
1
BUG: Series.str.isdigit with pyarrow dtype doesn't honor unicode superscripts Arrow pyarrow functionality Bug Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data Upstream issue Issue related to pandas dependency
#61466 opened May 20, 2025 by GarrettWu
2 of 3 tasks
4
BUG: Decimal and float-to-int conversion issues with pyarrow ≥18.0.0 in parquet and Arrow dtype tests Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61464 opened May 19, 2025 by bhavya2109sharma
3 tasks done
3
BUG: Fix Dataframe handling of scalar Timestamp #61444 Bug Timestamp pd.Timestamp and associated methods
#61450 opened May 17, 2025 by Farsidetfs • Draft
3 tasks
1
1
BUG: Confusing Behavior When Assigning DataFrame Columns Using omegaconf.ListConfig Bug Indexing Related to indexing on series/frames, not to indexes themselves Needs Discussion Requires discussion from core team before further action
#61439 opened May 14, 2025 by Trezorro
2 of 3 tasks
2
BUG: Joining Pandas with Polars dataframe produces fuzzy errormessage Bug Error Reporting Incorrect or improved errors from pandas
#61434 opened May 12, 2025 by Juan-132
3 tasks done
1
7
BUG: Some ExtensionArrays can return 0-d Elements Bug ExtensionArray Extending pandas with custom dtypes or arrays. Indexing Related to indexing on series/frames, not to indexes themselves Needs Discussion Requires discussion from core team before further action
#61433 opened May 12, 2025 by ilan-gold
2 of 3 tasks
4
BUG: documented usage of of str.split(...).str.get fails on dtype large_string[pyarrow] Bug Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data
#61431 opened May 12, 2025 by SandroCasagrande
3 tasks done
8
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: Raise MergeError when suffixes result in duplicate column names … Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61422 opened May 9, 2025 by Farsidetfs Loading… 3.0
1
30
BUG/FEATURE REQUEST: DataFrame.to_sql() tries to create table when it exists Bug IO SQL to_sql, read_sql, read_sql_query Needs Discussion Requires discussion from core team before further action Needs Info Clarification about behavior needed to assess issue
#61418 opened May 9, 2025 by vladidobro
2 of 3 tasks
4
BUG: df.rolling.{std, skew, kurt} gives unexpected value Bug Window rolling, ewma, expanding
#61416 opened May 9, 2025 by Jie-Lei
3 tasks done
1
@eicchen
8
BUG: way to include all columns within a groupby apply Apply Apply, Aggregate, Transform, Map Bug Closing Candidate May be closeable, needs more eyeballs Groupby
#61406 opened May 8, 2025 by madelavar12
3 tasks done
4
BUG: Duplicate columns allowed on merge if originating from separate dataframes Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61402 opened May 7, 2025 by nikaltipar
3 tasks done
1
@Farsidetfs @samruddhibaviskar11
8
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