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3,630 Open 23,667 Closed
3,630 Open 23,667 Closed
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Issues list

BUG: Boolean selection edge case. Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61191 opened Mar 27, 2025 by ptth222
2 of 3 tasks
BUG: \0 null bytes in str not preserved in pandas.CategoricalIndex or pandas.MultiIndex Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61189 opened Mar 27, 2025 by dutc
3 tasks done
1
BUG: date comparison fails when series is all pd.NaT values Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61188 opened Mar 27, 2025 by imrehg
3 tasks done
BUG: DataFrame.min raises TypeError when column contains mixed types (e.g., np.nan and datetime) Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61187 opened Mar 27, 2025 by tanjt107
3 tasks done
BUG: engine calamine lost 0 when read_excel from vlookup cell Bug Needs Triage Issue that has not been reviewed by a pandas team member
#61186 opened Mar 27, 2025 by ryjfgjl
2 of 3 tasks
BUG: Negation of .str.isnumeric() changes dtype when pd.NA is present Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data
#61182 opened Mar 26, 2025 by noahblakesmith
3 tasks done
4
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 Needs Triage Issue that has not been reviewed by a pandas team member
#61177 opened Mar 25, 2025 by dbalabka
3 tasks done
2
BUG: AttributeError on method call after binary operation in eval expression Bug expressions pd.eval, query
#61175 opened Mar 25, 2025 by stewit
2 of 3 tasks
@ycdjun
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
@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
@RutujaGhodake
13
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
BUG: fails to plot 2 plots with secondary y axis when index type is PeriodIndex and plot kinds are different Bug Visualization plotting
#61161 opened Mar 21, 2025 by Ev2geny
2 of 3 tasks
1
3
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: Impossible creation of array with dtype=string Bug Strings String extension data type and string data
#61155 opened Mar 20, 2025 by Maxence1402
2 of 3 tasks
@Manju080
6
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
3
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 Apply Apply, Aggregate, Transform, Map
#61128 opened Mar 15, 2025 by datapythonista
DOC: Write user guide page on apply/map/transform methods Apply Apply, Aggregate, Transform, Map Docs
#61126 opened Mar 15, 2025 by datapythonista
@arthurlw
2
ENH: Supporting third-party engines for all map and apply methods Apply Apply, Aggregate, Transform, Map
#61125 opened Mar 15, 2025 by datapythonista
13
ENH: fillna enhancement with method='nearest' Enhancement Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Needs Info Clarification about behavior needed to assess issue
#61124 opened Mar 15, 2025 by mennowitteveen
1 of 3 tasks
1
BUG: Series.interpolate regression in latest Pandas 3.0.0 nightly (method 'linear' behaves like 'index') Blocker Blocking issue or pull request for an upcoming release Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Regression Functionality that used to work in a prior pandas version
#61122 opened Mar 14, 2025 by theOehrly
2 of 3 tasks
3.0
1
@rhshadrach
7
ProTip! Find all open issues with in progress development work with linked:pr.