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3,612 Open 23,581 Closed
3,612 Open 23,581 Closed
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Issues list

BUG: series.reindex(mi) behaves different for series with Index and MultiIndex Bug Index Related to the Index class or subclasses MultiIndex Needs Triage Issue that has not been reviewed by a pandas team member
#60923 opened Feb 13, 2025 by ssche
3 tasks done
API: Design questions for HDFStore.append API Design IO HDF5 read_hdf, HDFStore Needs Discussion Requires discussion from core team before further action
#60920 opened Feb 12, 2025 by JakeTT404
3
ENH: Make merge_asof preserve the index Enhancement Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#60919 opened Feb 12, 2025 by wahsmail
3 tasks done
1
DOC: Conbench PoC benchmark is down Benchmark Performance (ASV) benchmarks Docs Needs Discussion Requires discussion from core team before further action
#60915 opened Feb 11, 2025 by luxedo
1 task done
3
BUG: Unexpected rounding behaviour Docs Numeric Operations Arithmetic, Comparison, and Logical operations
#60914 opened Feb 11, 2025 by Tim-Kirkwood
3 tasks done
2
Roadmap page has numbered-only list when should be a mix of numbered and unnumbered
#60913 opened Feb 11, 2025 by rffontenelle
@michellesweering
1
BUG: pandas.read_excel returns dict type if sheet_name=None Docs IO Excel read_excel, to_excel
#60909 opened Feb 11, 2025 by Filip-Regenczuk
2 of 3 tasks
1
3
BUG: ValueError: Length of values (5) does not match length of index (4) when subtracting two series with MultIndex and Index and nan values Bug Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate MultiIndex Needs Triage Issue that has not been reviewed by a pandas team member
#60908 opened Feb 11, 2025 by ssche
3 tasks done
DOC: Should pandas.api.types.is_dtype_equal() be documented? Docs Dtype Conversions Unexpected or buggy dtype conversions Needs Discussion Requires discussion from core team before further action
#60905 opened Feb 10, 2025 by Dr-Irv
1 task done
1
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
1 of 3 tasks
2
BUG: Memory leak when creating a df inside a loop Bug Constructors Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance Windows Windows OS
#60897 opened Feb 9, 2025 by Chuck321123
3 tasks done
4
Support for Storing and Retrieving Complex Data Types (e.g., Embeddings) in Pandas DataFrames Closing Candidate May be closeable, needs more eyeballs Complex Complex Numbers Enhancement IO CSV read_csv, to_csv Needs Info Clarification about behavior needed to assess issue
#60895 opened Feb 9, 2025 by ashishjaimongeorge
3 tasks done
1
DOC: should DateOffset always be used instead of BaseOffset? Docs Typing type annotations, mypy/pyright type checking
#60886 opened Feb 8, 2025 by MarcoGorelli
1
TST/CI: Investigate numba=0.61 test segfaults on Ubuntu ARM jobs CI Continuous Integration numba numba-accelerated operations Segfault Non-Recoverable Error
#60879 opened Feb 7, 2025 by mroeschke
DOC: Missing documentation for pandas styler properties Docs Styler conditional formatting using DataFrame.style
#60872 opened Feb 7, 2025 by star1327p
1 task done
ENH: unset_index method Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#60869 opened Feb 6, 2025 by zkurtz
1 of 3 tasks
ENH: give a useful error message when .query is used on a dataframe with duplicate column names Enhancement Needs Triage Issue that has not been reviewed by a pandas team member
#60863 opened Feb 6, 2025 by Mo-Gul
1 of 3 tasks
BUG: Poor GroupBy Performance with ArrowDtype(...) wrapped types Arrow pyarrow functionality Bug Dtype Conversions Unexpected or buggy dtype conversions Needs Discussion Requires discussion from core team before further action
#60861 opened Feb 5, 2025 by kzvezdarov
3 tasks done
13
BUG: Unknown Error - Getting from Databricks SQL Python - From PyArrow module (pyarrow.lib.ArrowException) Arrow pyarrow functionality Bug IO SQL to_sql, read_sql, read_sql_query Needs Info Clarification about behavior needed to assess issue
#60838 opened Feb 3, 2025 by Gobi2511
2 of 3 tasks
4
BUG: .str.contains() regex lookbehind and lookahead fail for data type string[pyarrow] Arrow pyarrow functionality Bug Strings String extension data type and string data
#60833 opened Feb 3, 2025 by noahblakesmith
3 tasks done
2.3
10
BUG: pd.Series.groupby issues FutureWarning Bug Groupby Warnings Warnings that appear or should be added to pandas
#60831 opened Feb 2, 2025 by TiborVoelcker
2 of 3 tasks
2.3
@sanggon6107
4
BUG: pd.HDFStore(file, mode='a') increases file size unnecessarily when file exists and dataframe contains string-based columns Bug IO HDF5 read_hdf, HDFStore
#60823 opened Feb 1, 2025 by brianjzhang
2 of 3 tasks
1
ENH: show the raw unicode in the output formatting of Index/array? Output-Formatting __repr__ of pandas objects, to_string Unicode Unicode strings
#60819 opened Jan 30, 2025 by jorisvandenbossche
4
BUG: Union of two DateTimeIndexes is incorrectly calculated Bug Needs Discussion Requires discussion from core team before further action Non-Nano datetime64/timedelta64 with non-nanosecond resolution Regression Functionality that used to work in a prior pandas version
#60816 opened Jan 29, 2025 by filmor
2 of 3 tasks
2.3
5
DOC: Missing documentation for Styler.columns and Styler.index Docs Styler conditional formatting using DataFrame.style
#60815 opened Jan 29, 2025 by Dr-Irv
1 task done
1
ProTip! Updated in the last three days: updated:>2025-02-10.