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Pull requests: pandas-dev/pandas
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ENH: NumericIndex for any numpy int/uint/float dtype Constructors Series/DataFrame/Index/pd.array Constructors Dtype Conversions Unexpected or buggy dtype conversions Enhancement Index Related to the Index class or subclasses
ENH: Add support for dataclasses in the DataFrame constructor API Design Constructors Series/DataFrame/Index/pd.array Constructors
BUG: validate Index data is 1D + deprecate multi-dim indexing Constructors Series/DataFrame/Index/pd.array Constructors Index Related to the Index class or subclasses
API / CoW: Copy NumPy arrays by default in DataFrame constructor Constructors Series/DataFrame/Index/pd.array Constructors Copy / view semantics
BUG: Create empty dataframe with string dtype fails Bug Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
BUG: Series construction with EA dtype and index but no data fails Bug Constructors Series/DataFrame/Index/pd.array Constructors ExtensionArray Extending pandas with custom dtypes or arrays.
API: Honor copy for dict-input in DataFrame API Design Constructors Series/DataFrame/Index/pd.array Constructors DataFrame DataFrame data structure Stale
[ArrayManager] DataFrame constructors Constructors Series/DataFrame/Index/pd.array Constructors Internals Related to non-user accessible pandas implementation Refactor Internal refactoring of code
API / CoW: DataFrame(<dict of Series>, copy=False) constructor now gives lazy copy Constructors Series/DataFrame/Index/pd.array Constructors Copy / view semantics
Pd.series.map performance Constructors Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance Series Series data structure
BUG: DataFrame fail to construct when data is list and columns is nested list for MI Constructors Series/DataFrame/Index/pd.array Constructors DataFrame DataFrame data structure
BUG: preserve object-dtype index when accessing DataFrame column / PERF: improve perf of Series fastpath constructor Constructors Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance
BUG: instantiation using a dict with a period scalar Bug Constructors Series/DataFrame/Index/pd.array Constructors Dtype Conversions Unexpected or buggy dtype conversions ExtensionArray Extending pandas with custom dtypes or arrays. Period Period data type
BUG: pd.DataFrame.from_records() raises a KeyError if passed a string index and an empty iterable Bug Constructors Series/DataFrame/Index/pd.array Constructors Stale
#47319 by Kelvingandhi was closed Sep 21, 2022 Loading…
5 tasks done
BUG: Series constructor drops nanoseconds of Timedelta scalar Bug Constructors Series/DataFrame/Index/pd.array Constructors Timedelta Timedelta data type
#38040 by ma3da was closed Dec 11, 2020 Loading…
5 tasks done
BUG: assign consensus name to index union in array case GH13475 Bug Constructors Series/DataFrame/Index/pd.array Constructors Index Related to the Index class or subclasses Reshaping Concat, Merge/Join, Stack/Unstack, Explode
BUG: fix DataFrame(data=[None, 1], dtype='timedelta64[ns]') raising ValueError Constructors Series/DataFrame/Index/pd.array Constructors Timedelta Timedelta data type
TST: Ensure dtypes are set correctly for empty integer columns #24386 Constructors Series/DataFrame/Index/pd.array Constructors Dtype Conversions Unexpected or buggy dtype conversions Testing pandas testing functions or related to the test suite
BUG: Ensure dataframe preserves categorical indices with categorial series Categorical Categorical Data Type Constructors Series/DataFrame/Index/pd.array Constructors DataFrame DataFrame data structure
#57635 by jmarintur was closed May 31, 2024 Loading…
2 tasks done
Switch dataframe constructor to use dispatch Clean Constructors Series/DataFrame/Index/pd.array Constructors DataFrame DataFrame data structure Needs Discussion Requires discussion from core team before further action
#32844 by saulshanabrook was closed Jun 14, 2020 Loading…
5 of 6 tasks
PERF: fastpath DataFrame constructor from BlockManager Constructors Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance
#33357 by jbrockmendel was merged Apr 9, 2020 Loading…
PERF: Cythonize Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance
from_nested_dict Constructors DOC: Add clearer info when copy is False but memory shared only for certain objects Constructors Series/DataFrame/Index/pd.array Constructors Copy / view semantics Docs
BUG: DataFrame constructor reordering elements with ndarray from datetime dtype not datetime64[ns] Constructors Series/DataFrame/Index/pd.array Constructors DataFrame DataFrame data structure
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