All pull requests

Pull requests

• DOC: note Windows timezone database requirement for pyarrow < 24 (#61782)

  #71936·elliothwang opened Nov 6, 2026·4 of 8 tasks·

  ·
  1

• BUG: Index.get_loc raising TypeError for missing scalar key defining __iter__

  Needs Issue Assignment
  #71935·10k11 opened Nov 6, 2026·3 tasks done·

  ·
  1

  1

• PERF: use a set in duplicated with keep="first"/"last" (GH#39799)

  duplicatedPerformance
  #71933·jbrockmendel opened Nov 5, 2026Member·

  ·

• PERF: cache sorted data in GroupBy across calls (GH#51077)

  GroupbyPerformance
  #71932·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• ENH: add usecols to read_sas (GH#37088)

  EnhancementIO SAS
  #71931·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• BUG: pivot, pivot_table and unstack raising on complex data (GH#25221)

  BugComplexReshaping
  #71930·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• BUG: DataFrame constructor not copying input with extension dtype (GH#52338)

  BugConstructorsCopy / view semanticsPerformance
  #71929·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• PERF: DataFrame.corr matrix product for data without NaNs (GH#40956)

  cov/corrPerformance
  #71928·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• PERF: native groupby sum for PyArrow-backed strings (GH#60861)

  ArrowGroupbyPerformanceStrings
  #71927·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• PERF: avoid np.apply_along_axis in DataFrame.apply(raw=True) (GH#66203)

  ApplyBugPerformance
  #71926·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• BUG: json_normalize meta path not following record_path (GH#60254)

  BugIO JSON
  #71925·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• PERF: faster tz-aware datetime formatting without a format (GH#44764)

  DatetimePerformanceTimezones
  #71924·jbrockmendel opened Nov 5, 2026Member·

  ·

• BUG: to_json(orient="table") complex data unreadable by read_json (GH#50782)

  BugComplexIO JSON
  #71923·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• PERF: avoid copying the numexpr result in pd.eval (GH#71806)

  expressionsPerformance
  #71922·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• TST: read_parquet pyarrow backend keeps categorical index width (GH#58062)

  ArrowIO ParquetTesting
  #71921·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• TST: DataFrame(2D ndarray) copies to column-major blocks (GH#52438)

  ConstructorsTesting
  #71919·jbrockmendel opened Nov 5, 2026Member·

  ·
  1

• TST: groupby filter with dropna=False keeps NaN group (GH#44517)

  Awaiting Review
  #71917·aniyow07 opened Nov 5, 2026Contributor·5 of 8 tasks·

  ·
  1

• BUG: sort key ignored when it relabels an unordered Categorical (GH#58153)

  Awaiting Review
  #71913·deonbinny7 opened Nov 5, 2026Contributor·6 of 8 tasks·

  ·
  1

• TST: Index.map to tuples for flat Index types (GH#24800)

  IndexTesting
  #71911·jbrockmendel opened Nov 4, 2026Member·

  ·

• BUG: rank on object dtype swallowed comparison exceptions

  Needs Issue Assignment
  #71908·shi-felix opened Nov 4, 2026·

  ·
  1

  4

• DOC: document that Styler methods modify the Styler in place (GH#59360)

  DocsStyler
  #71905·jbrockmendel opened Nov 4, 2026Member·

  ·

  · 3.2
  1

• DOC: note integer start/end are nanoseconds in timedelta_range (GH#8886)

  DocsTimedelta
  #71904·jbrockmendel opened Nov 4, 2026Member·

  ·

  · 3.2
  1

• BUG: validate array-like merge key lengths (GH#58279)

  Awaiting Review
  #71903·lancy69 opened Nov 4, 2026·7 of 8 tasks·

  ·
  1

• DOC/MNT: update maintainer release guidelines

  Docs
  #71901·jorisvandenbossche opened Nov 4, 2026Member·

  ·

  · 3.2

• Support callable replacements for regex matches

  Awaiting Review
  #71900·Kumar-Abhimanyu opened Nov 4, 2026·7 of 8 tasks·

  ·
  1