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Issues list

BUG: Python 3.14 may not increment refcount Bug Copy / view semantics Needs Discussion Requires discussion from core team before further action Warnings Warnings that appear or should be added to pandas
#61368 opened Apr 28, 2025 by tacaswell
3 tasks done
4
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
1 task done
10
BUG: FutureWarning for Boolean sparse dtypes in pd.DataFrame.sparse.from_spmatrix() Bug Sparse Sparse Data Type Warnings Warnings that appear or should be added to pandas
#59739 opened Sep 6, 2024 by sammlapp
2 of 3 tasks
2.3
@DhruvBShetty
2
BUG: Spurious FutureWarning when using pd.read_json() Bug IO JSON read_json, to_json, json_normalize Warnings Warnings that appear or should be added to pandas
#59511 opened Aug 14, 2024 by krassowski
2 of 3 tasks
2.3
@KevsterAmp
8
BUG: DataFrame.convert_dtype(convert_integer=True) with int64_t limits throws Warning Bug Dtype Conversions Unexpected or buggy dtype conversions Warnings Warnings that appear or should be added to pandas
#58485 opened Apr 30, 2024 by Tishj
2 of 3 tasks
1
TST: Disallow bare tm.assert_produces_warning Testing pandas testing functions or related to the test suite Warnings Warnings that appear or should be added to pandas
#58290 opened Apr 17, 2024 by Aloqeely
1
@chaarvii
8
Potential regression induced by PR #56921 Performance Memory or execution speed performance Regression Functionality that used to work in a prior pandas version Warnings Warnings that appear or should be added to pandas
#57641 opened Feb 27, 2024 by DeaMariaLeon 3.0
@rhshadrach
2
BUG: Selecting columns from a DataFrame affects display of warnings Bug Upstream issue Issue related to pandas dependency Warnings Warnings that appear or should be added to pandas
#57054 opened Jan 24, 2024 by EBurtonRod
2 of 3 tasks
2
BUG: FutureWarning about 'isin' where it is not used Bug expressions pd.eval, query Warnings Warnings that appear or should be added to pandas
#57028 opened Jan 23, 2024 by workflowsguy
3 tasks done
2.3
6
BUG: Creating a pandas.DataFrame affects warnings filters Bug Warnings Warnings that appear or should be added to pandas
#55801 opened Nov 2, 2023 by anmyachev
2 of 3 tasks
@jrmylow
5
BUG: FutureWarning appears when assigning new column through loc Bug Dtype Conversions Unexpected or buggy dtype conversions PDEP6-related related to PDEP6 (not upcasting during setitem-like Series operations) Warnings Warnings that appear or should be added to pandas
#55791 opened Nov 1, 2023 by utilifeedagnes
2 of 3 tasks
1
6
ENH: Make performance warnings opt-in and more noisy Enhancement Needs Discussion Requires discussion from core team before further action Performance Memory or execution speed performance Warnings Warnings that appear or should be added to pandas
#55385 opened Oct 3, 2023 by rhshadrach
16
Please consider using DeprecationWarning rather than FutureWarning for API changes Community Community topics (meetings, etc.) Warnings Warnings that appear or should be added to pandas
#54970 opened Sep 2, 2023 by mwaskom
3 tasks done
1
40
QST: Is there a work-around for repeated FutureWarnings? Usage Question Warnings Warnings that appear or should be added to pandas
#50603 opened Jan 6, 2023 by stev-0
2 tasks done
8
BUG: PerformanceWarning when merging dataframes with multiindex columns and indicator option Bug MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode Warnings Warnings that appear or should be added to pandas
#49325 opened Oct 26, 2022 by fjaragones
2 of 3 tasks
BUG: PeriodIndex looses tz information without emitting a warning that the timezone is dropped. Bug Period Period data type Timezones Timezone data dtype Warnings Warnings that appear or should be added to pandas
#47005 opened May 12, 2022 by joooeey
3 tasks done
1
1
BUG: Setting values on a multiindex df, via loc, does nothing on 1.4.x Bug Copy / view semantics Indexing Related to indexing on series/frames, not to indexes themselves Regression Functionality that used to work in a prior pandas version Warnings Warnings that appear or should be added to pandas
#46983 opened May 10, 2022 by ghost
2 of 3 tasks
6
BUG: Unexpected change of behavior on DataFrame type float32 between pandas versions. Copy / view semantics Warnings Warnings that appear or should be added to pandas
#46552 opened Mar 29, 2022 by carlosan1708
3 tasks done
18
BUG: "RuntimeWarning: divide by zero encountered in log10" that does not appear with a numpy argument Bug ufuncs __array_ufunc__ and __array_function__ Warnings Warnings that appear or should be added to pandas
#46473 opened Mar 22, 2022 by bersbersbers
3 tasks done
@adamjliang
6
ENH: Warning with only one column used in apply causing performance issues Apply Apply, Aggregate, Transform, Map Enhancement Needs Discussion Requires discussion from core team before further action Performance Memory or execution speed performance Warnings Warnings that appear or should be added to pandas
#44490 opened Nov 16, 2021 by crosspolar
2
BUG: DateOffset addition gives UserWarning: Discarding nonzero nanoseconds in conversion Bug Frequency DateOffsets Numeric Operations Arithmetic, Comparison, and Logical operations Warnings Warnings that appear or should be added to pandas
#40948 opened Apr 14, 2021 by jherman3
2 of 3 tasks
Sub-nanosecond datetime support Datetime Datetime data dtype Enhancement Non-Nano datetime64/timedelta64 with non-nanosecond resolution Warnings Warnings that appear or should be added to pandas
#30823 opened Jan 8, 2020 by wmayner
9
PerformanceWarning: misleading warning for all columns Bug IO HDF5 read_hdf, HDFStore Strings String extension data type and string data Warnings Warnings that appear or should be added to pandas
#28460 opened Sep 16, 2019 by jankislinger
1
df.set_index with drop=False by default create a dataframe ambiguous for df.sort_values Enhancement Warnings Warnings that appear or should be added to pandas
#25658 opened Mar 11, 2019 by datatravelgit
5
Issue warning in slow ExtensionArray base methods ExtensionArray Extending pandas with custom dtypes or arrays. Performance Memory or execution speed performance Warnings Warnings that appear or should be added to pandas
#24433 opened Dec 26, 2018 by TomAugspurger
4
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