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3,650 Open 23,855 Closed
3,650 Open 23,855 Closed
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Issues list

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
BUG: PyArrow timestamp type does not work with map() function Apply Apply, Aggregate, Transform, Map Arrow pyarrow functionality Bug
#61231 opened Apr 4, 2025 by dbalabka
3 tasks done
2
@KevsterAmp @arthurlw
3
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
3
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
ENH: Add ignore_empty and ignore_all_na arguments to pd.concat Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#61210 opened Apr 1, 2025 by sergei3000
1 of 3 tasks
@gsmll
3
ENH: Consistent NA handling in unique(), and nunique() Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Enhancement Needs Discussion Requires discussion from core team before further action
#61209 opened Mar 31, 2025 by olek-osikowicz
1 of 3 tasks
@HoqueUM
3
BUG: DataFrame.min with skipna=True raises TypeError when column contains np.nan and datetime.date Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Reduction Operations sum, mean, min, max, etc.
#61204 opened Mar 31, 2025 by tanjt107
3 tasks done
@MayurKishorKumar @Mohit-Kundu
4
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
1 of 3 tasks
@DhruvBShetty @janeq6
11
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
BUG: engine calamine lost 0 when read_excel from vlookup cell Bug Closing Candidate May be closeable, needs more eyeballs IO Excel read_excel, to_excel Upstream issue Issue related to pandas dependency
#61186 opened Mar 27, 2025 by ryjfgjl
2 of 3 tasks
@chilin0525
5
BUG: Performance issue with fillna() after merging DataFrames Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Info Clarification about behavior needed to assess issue Performance Memory or execution speed performance
#61180 opened Mar 26, 2025 by sjfakharian
2 of 3 tasks
2
BUG: Inconsistency when converting week PeriodIndex into DatetimeIndex with astype("datetime64[ns]") Bug Datetime Datetime data dtype Dtype Conversions Unexpected or buggy dtype conversions Needs Discussion Requires discussion from core team before further action Period Period data type
#61177 opened Mar 25, 2025 by dbalabka
3 tasks done
4
BUG: pd.read_csv() on empty files should give an empty dataframe pd.DataFrame() Bug Closing Candidate May be closeable, needs more eyeballs IO CSV read_csv, to_csv
#61172 opened Mar 24, 2025 by xuancong84
3 tasks done
1
@MartinBraquet
4
BUG: DataFrame.dtypes.to_json OverflowError: Maximum recursion level reached Bug IO JSON read_json, to_json, json_normalize
#61170 opened Mar 23, 2025 by Aliebc
3 tasks done
1
@GalkaKG
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
1
@RutujaGhodake
24
ENH: merge_asof threshold minimum Enhancement Needs Discussion Requires discussion from core team before further action Needs Info Clarification about behavior needed to assess issue Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#61164 opened Mar 21, 2025 by Lituchy
1 of 3 tasks
6
ENH: Accept no fields for groupby by Enhancement Groupby Needs Discussion Requires discussion from core team before further action
#61160 opened Mar 21, 2025 by simonaubertbd
1 of 3 tasks
1
@udit710
10
BUILD: Cython.Compiler.Errors: 'free_threading_config.pxi' not found Build Library building on various platforms
#61156 opened Mar 20, 2025 by yohplala
1 task done
1
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
BUG(?): rolling sum with pyarrow types results in float64 instead of preserving integer type Arrow pyarrow functionality Bug Dtype Conversions Unexpected or buggy dtype conversions Window rolling, ewma, expanding
#61144 opened Mar 18, 2025 by MarcoGorelli
3 tasks done
4
BUG: DataFrame.from_records() ignores columns with iterator and nrows=0 Bug IO Data IO issues that don't fit into a more specific label
#61140 opened Mar 17, 2025 by jlumpe
2 of 3 tasks
1
1
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
ENH: Supporting third-party engines for all map and apply methods Apply Apply, Aggregate, Transform, Map
#61125 opened Mar 15, 2025 by datapythonista
13
ProTip! Updated in the last three days: updated:>2025-06-14.