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3,182 Open 21,746 Closed
3,182 Open 21,746 Closed
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Issues list

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
2 of 3 tasks
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
2 of 3 tasks
2
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
2 of 3 tasks
1
ENH: IDEA Introduce axis→0/axis→1 arrow aliases to disambiguate direction vs. label operations Closing Candidate May be closeable, needs more eyeballs Enhancement Needs Discussion Requires discussion from core team before further action
#61336 opened Apr 22, 2025 by withlionbuddha
1 of 3 tasks
3
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
3 tasks done
10
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
1 of 3 tasks
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
3
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
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
3 tasks done
1
BUG: NA are coerced in to NaN by concat Bug Dtype Conversions Unexpected or buggy dtype conversions Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61303 opened Apr 17, 2025 by davetapley
3 tasks done
4
BUG: values argument ignored when also supplied to index/columns in pivot_table Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61292 opened Apr 15, 2025 by it176131
3 tasks done
1
BUG: reindex (and atleast several other methods) do not respect fill_value=None Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#61291 opened Apr 15, 2025 by TimAllen576
3 tasks done
1
ENH: read_xml() does not allow to specify huge_tree=True for the 'lxml' parser. Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#61290 opened Apr 14, 2025 by sergiykhan
1 of 3 tasks
ENH: preview_csv(***.csv) for Fast First-N-Line Preview on Large Plus Size (>100GB) Enhancement IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#61281 opened Apr 13, 2025 by visheshrwl
1 of 3 tasks
3
BUG:FutureWarning for palette parameter without hue in faceted distributions Bug Closing Candidate May be closeable, needs more eyeballs Visualization plotting
#61276 opened Apr 12, 2025 by lavaeagle2
3 tasks done
1
ENH: Utility to return "feasible" dtype for infer_dtype output. Enhancement Needs Discussion Requires discussion from core team before further action
#61256 opened Apr 8, 2025 by mroeschke
1
ENH: Functionality to aid with Database Imports Enhancement IO SQL to_sql, read_sql, read_sql_query Needs Triage Issue that has not been reviewed by a pandas team member
#61247 opened Apr 7, 2025 by mwiles217
2 of 3 tasks
3
BUG: remove_unused_levels does not keep index levels order Bug MultiIndex Needs Discussion Requires discussion from core team before further action Sorting e.g. sort_index, sort_values
#61245 opened Apr 7, 2025 by mathman79
3 tasks done
2
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
1 of 3 tasks
2
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
1 of 3 tasks
1
BUG: setting item to iterable with .at fails when column doesn't exist or has wrong dtype Bug Indexing Related to indexing on series/frames, not to indexes themselves Needs Discussion Requires discussion from core team before further action
#61223 opened Apr 3, 2025 by jbogar
2 of 3 tasks
6
BUG: Exception with unstack(sort=False) and NA in index Bug ExtensionArray Extending pandas with custom dtypes or arrays. Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61221 opened Apr 3, 2025 by jlumpe
2 of 3 tasks
1
2
QST: Should the absence of tzdata package affect the performance in any way ? Needs Info Clarification about behavior needed to assess issue Usage Question
#61218 opened Apr 2, 2025 by sdg002
2 tasks done
3
BUG: round on object columns no longer raises a TypeError Bug Error Reporting Incorrect or improved errors from pandas Numeric Operations Arithmetic, Comparison, and Logical operations Regression Functionality that used to work in a prior pandas version
#61206 opened Mar 31, 2025 by MT407
2 of 3 tasks
2.3
2
BUG: Boolean selection edge case. Bug Indexing Related to indexing on series/frames, not to indexes themselves Needs Discussion Requires discussion from core team before further action
#61191 opened Mar 27, 2025 by ptth222
2 of 3 tasks
2
ProTip! Adding no:label will show everything without a label.