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Issues list

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: 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
BUG:to_numpy() returns numpy array with Object dtype, for multiple columns with the same dtype ("Float64" or "float64[pyarrow]"). Bug ExtensionArray Extending pandas with custom dtypes or arrays. PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#60038 opened Oct 14, 2024 by dpmcauliffe
3 tasks done
1
BUG: skipna=True operations don't skip NaN in FloatingArrays Bug ExtensionArray Extending pandas with custom dtypes or arrays. 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 Reduction Operations sum, mean, min, max, etc.
#59965 opened Oct 4, 2024 by carlocastoldi
3 tasks done
1
5
BUG: drop_duplicates() inconsistent output when using/not using subset and having different types of NaNs Bug 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
#59887 opened Sep 25, 2024 by user-jx
3 tasks done
5
PDEP-16: Consistent missing value handling PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint PDEP pandas enhancement proposal Stale
#58988 opened Jun 12, 2024 by jorisvandenbossche • Draft
14
BUG: Can not select in MultiIndex with NaN Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Bug Indexing Related to indexing on series/frames, not to indexes themselves Needs Triage Issue that has not been reviewed by a pandas team member PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#56366 opened Dec 6, 2023 by moi90
2 of 3 tasks
7
BUG: Nullable Float64Dtype incorrectly converting NaN to NA when constructed with Arrow array Bug Needs Triage Issue that has not been reviewed by a pandas team member PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#55668 opened Oct 24, 2023 by tswast
2 of 3 tasks
4
BUG: Series([pd.NA, np.nan], dtype="Float64").nunique() should return 0? Bug 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
#54876 opened Aug 30, 2023 by mroeschke
3 tasks done
BUG: Float64Dtype and isnull() functions unexpected behavior Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#53887 opened Jun 27, 2023 by jayantsahewal
3 tasks done
7
DISC: Make all user-facing dtypes ExtensionDtype API Design Clean ExtensionArray Extending pandas with custom dtypes or arrays. PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint Refactor Internal refactoring of code
#53778 opened Jun 21, 2023 by jbrockmendel
1
API/DEPR: pd.array don't cast numpy int/float/bool arrays to nullable API Design Constructors Series/DataFrame/Index/pd.array Constructors Deprecate Functionality to remove in pandas NA - MaskedArrays Related to pd.NA and nullable extension arrays 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
#53695 opened Jun 15, 2023 by jbrockmendel
2
PERF: Use Arrow tables instead of arrays in ArrowExtensionArray? Arrow pyarrow functionality PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint Performance Memory or execution speed performance
#53158 opened May 9, 2023 by jbrockmendel
3
BUG: replace inconsistency with np.nan & pd.NA Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint replace replace method
#51237 opened Feb 8, 2023 by galipremsagar
2 of 3 tasks
1
Proper support of nullable dtypes as the Categorical dtype Categorical Categorical Data Type 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
#50711 opened Jan 12, 2023 by Dr-Irv
9
BUG: hasnans not accounting for np.nan in FloatingArray Bug Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#49818 opened Nov 21, 2022 by galipremsagar
2 of 3 tasks
4
API: ExtensionArray._concat_same_type doesn't define axis API Design ExtensionArray Extending pandas with custom dtypes or arrays. 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
#47514 opened Jun 26, 2022 by mroeschke
5
API: Series[EA].fillna fallback behavior with incompatible value Bug ExtensionArray Extending pandas with custom dtypes or arrays. 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 Series Series data structure
#45153 opened Jan 1, 2022 by jbrockmendel
6
BUG: fillna(0) does not fill NaNs for Float64Arrays Bug NA - MaskedArrays Related to pd.NA and nullable extension arrays 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
#39926 opened Feb 20, 2021 by evyasonov
2 tasks done
13
BUG: FloatingArray constructor with input of all missing values: np.nan vs. pd.NA Bug Dtype Conversions Unexpected or buggy dtype conversions Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays 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
#38751 opened Dec 28, 2020 by arw2019
3
BUG: find_common_type incorrect for Categorical with NaNs Categorical Categorical Data Type Deprecate Functionality to remove in pandas ExtensionArray Extending pandas with custom dtypes or arrays. 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
#38240 opened Dec 2, 2020 by jbrockmendel
7
API: bool(pd.NA) API Design Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#38224 opened Dec 2, 2020 by jreback
12
INT: include NA values in Categorical.categories Categorical Categorical Data Type Internals Related to non-user accessible pandas implementation PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#37930 opened Nov 18, 2020 by jbrockmendel
6
BUG: mix of int and pd.NA defaults to object dtype Constructors Series/DataFrame/Index/pd.array Constructors Dtype Conversions Unexpected or buggy dtype conversions Enhancement ExtensionArray Extending pandas with custom dtypes or arrays. NA - MaskedArrays Related to pd.NA and nullable extension arrays 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
#33662 opened Apr 19, 2020 by eddy-geek
2 tasks done
1
API: distinguish NA vs NaN in floating dtypes API Design Enhancement Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate NA - MaskedArrays Related to pd.NA and nullable extension arrays PDEP missing values Issues that would be addressed by the Ice Cream Agreement from the Aug 2023 sprint
#32265 opened Feb 26, 2020 by jorisvandenbossche
123
ProTip! Adding no:label will show everything without a label.