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Issues list

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 updated Apr 7, 2025
2 of 3 tasks
ENH: Add paramenter index to drop_duplicates to drop duplicate indices Enhancement Needs Discussion Requires discussion from core team before further action
#58648 opened May 9, 2024 by bingbong-sempai updated Apr 7, 2025
1 of 3 tasks
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 updated Apr 7, 2025
1 of 3 tasks
ENH: allow writing series to parquet file Enhancement IO Parquet parquet, feather Needs Discussion Requires discussion from core team before further action Series Series data structure
#54638 opened Aug 19, 2023 by lcrmorin updated Apr 7, 2025
1 of 3 tasks
ENH: Export (a subset of?) pandas._typing for type checking Enhancement Typing type annotations, mypy/pyright type checking
#55231 opened Sep 21, 2023 by caneff updated Apr 6, 2025
1 of 3 tasks
BUG: Can only compare identically-labeled Series objects (string vs. object) Bug Needs Discussion Requires discussion from core team before further action Strings String extension data type and string data
#61099 opened Mar 10, 2025 by wahsmail updated Apr 6, 2025
3 tasks done
2.3
BUG: iloc with Series as indexer fails for __getitem__ but works with __setitem__ Bug Indexing Related to indexing on series/frames, not to indexes themselves
#60994 opened Feb 23, 2025 by luxedo updated Apr 6, 2025
3 tasks done
BUG: Datatypes not preserved on pd.read_excel Bug IO Excel read_excel, to_excel
#60088 opened Oct 23, 2024 by vignesh14052002 updated Apr 6, 2025
2 of 3 tasks
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 updated Apr 6, 2025
3 tasks done
BUG: round on object columns no longer raises a TypeError Bug Error Reporting Incorrect or improved errors from pandas Numeric Operations Arithmetic, Comparison, and Logical operations Regression Functionality that used to work in a prior pandas version
#61206 opened Mar 31, 2025 by MT407 updated Apr 6, 2025
2 of 3 tasks
2.3
DOC: fix docstring validation errors for pandas.Timestamp Code Style Code style, linting, code_checks Docs good first issue
#59458 opened Aug 9, 2024 by natmokval updated Apr 6, 2025
TRACKER: Getting Started with Meson/Bug Reports Build Library building on various platforms Master Tracker High level tracker for similar issues
#49683 opened Nov 13, 2022 by lithomas1 updated Apr 6, 2025
3 of 4 tasks
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 updated Apr 5, 2025
3 tasks done
BUG: Timezone upon DatetimeIndex union is changed to UTC Bug Dtype Conversions Unexpected or buggy dtype conversions Timezones Timezone data dtype
#60080 opened Oct 21, 2024 by alippai updated Apr 5, 2025
2 of 3 tasks
BUG: Parquet roundtrip fails with numerical categorical dtype Bug Categorical Categorical Data Type IO Parquet parquet, feather
#60491 opened Dec 4, 2024 by adrienpacifico updated Apr 5, 2025
2 of 3 tasks
Pandas Series Construction Extremely Slow for Array of Large Series Nested Data Data where the values are collections (lists, sets, dicts, objects, etc.). Performance Memory or execution speed performance
#25364 opened Feb 19, 2019 by ChoiwahChow updated Apr 4, 2025
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 updated Apr 4, 2025
1 of 3 tasks
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 updated Apr 4, 2025
1 of 3 tasks
ENH: Add an iterdicts() function Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#60901 opened Feb 9, 2025 by narukaze132 updated Apr 4, 2025
1 of 3 tasks
BUG: Empty object column writes to parquet as INT32 instead of BINARY L:STRING Bug IO Parquet parquet, feather
#37083 opened Oct 12, 2020 by raginjason updated Apr 4, 2025
2 of 3 tasks
BUG: DataFrame.to_parquet doesn't round-trip pyarrow StringDtype Docs IO Parquet parquet, feather Strings String extension data type and string data
#42664 opened Jul 22, 2021 by TomAugspurger updated Apr 4, 2025
2 of 3 tasks
ENH: Consistent NA handling in unique(), and nunique() Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#61209 opened Mar 31, 2025 by olek-osikowicz updated Apr 4, 2025
1 of 3 tasks
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 updated Apr 4, 2025
2 of 3 tasks
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