9 Pull requests merged by 6 people

• API: improve dtype in df.where with EA other

  #62038 merged Aug 5, 2025

• REF: make copy keyword in recode_for_categories keyword only

  #62019 merged Aug 4, 2025

• API: rank with nullable dtypes preserve NA

  #62043 merged Aug 4, 2025

• [pre-commit.ci] pre-commit autoupdate

  #62041 merged Aug 4, 2025

• TST: nan->NA in non-construction tests

  #62021 merged Aug 4, 2025

• EHN: return early when the result is None

  #62032 merged Aug 4, 2025

• Bump pypa/cibuildwheel from 3.1.1 to 3.1.3

  #62039 merged Aug 4, 2025

• TST: Speed up hypothesis and slow tests

  #62028 merged Aug 3, 2025

• BUG: Change default of observed in Series.groupby

  #62025 merged Aug 2, 2025

9 Pull requests opened by 8 people

• BUG: groupby.idxmin/idxmax with all NA values should raise

  #62026 opened Aug 2, 2025

• DOC: fix mask/where docstring alignment note (#61781)

  #62029 opened Aug 2, 2025

• BUG: Catch TypeError in _is_dtype_type when converting abstract numpy types (#62018)

  #62030 opened Aug 3, 2025

• API: timestamp resolution inference: default to microseconds when possible

  #62031 opened Aug 3, 2025

• BUG: raise a proper exception when str.rsplit is passed a regex and clarify the docs

  #62035 opened Aug 3, 2025

• API: mode.nan_is_na to consistently distinguish NaN-vs-NA

  #62040 opened Aug 4, 2025

• REF: Avoid/defer `dtype=object` containers in plotting

  #62042 opened Aug 4, 2025

• DOC: updated BooleanDType docstring

  #62045 opened Aug 4, 2025

• BUG Updated border attribute to in-line CSS

  #62046 opened Aug 5, 2025

7 Issues closed by 5 people

• DOC: Series and DataFrame.reindex accepts Timedelta as tolerance, which is not documented

  #62010 closed Aug 5, 2025

• QST: best way to extend/subclass pandas.DataFrame

  #61362 closed Aug 5, 2025

• ENH: Add a name parameter to value_counts()

  #55121 closed Aug 5, 2025

• BUG: Can't convert `int64[pyarrow]` series with missing values to legacy numpy `float` series

  #57093 closed Aug 5, 2025

• issubdtype(<categorical>, np.bool_) raises error

  #9581 closed Aug 2, 2025

• API: Expand read_csv dtype for categoricals

  #14503 closed Aug 2, 2025

• Dask shuffle performance help

  #43155 closed Aug 2, 2025

3 Issues opened by 2 people

• BUG: rank with object dtype and small values

  #62036 opened Aug 3, 2025

• BUG: Wrong inferred type in case of a mixture of boolean, float and integers

  #62033 opened Aug 3, 2025

• BUG: NaN vs NA in mixed reduction

  #62024 opened Aug 2, 2025

35 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• DOC: Add SSLCertVerificationError warning message for documentation b…

  #62015 commented on Aug 5, 2025 • 3 new comments

• ENH: usecols takes input order for read_csv implementation review

  #61967 commented on Aug 5, 2025 • 3 new comments

• ENH: Implement PDEP-17

  #61468 commented on Aug 4, 2025 • 2 new comments

• BUG: ValueError: Buffer dtype mismatch, expected 'intp_t' but got 'long long' on ARMv7 32 bit

  #55305 commented on Aug 2, 2025 • 0 new comments

• ENH: error messages for missing performance dependencies should point out the options

  #62001 commented on Aug 5, 2025 • 0 new comments

• ENH: Add a safe Option to hash_pandas_object with Default Value Set to True

  #60428 commented on Aug 5, 2025 • 0 new comments

• Understanding string interning in pd.read_csv vs. other methods of creating large object columns

  #52639 commented on Aug 5, 2025 • 0 new comments

• ENH: Implement `skiptrailingspace` parameter for `read_csv`

  #60813 commented on Aug 5, 2025 • 0 new comments

• Follow-up on basic FloatingArray implementation

  #38110 commented on Aug 5, 2025 • 0 new comments

• Should IntegerArray provide data / mask through an API?

  #34873 commented on Aug 5, 2025 • 0 new comments

• ENH: Support for list of intervals / IntervalArray in to_parquet

  #34644 commented on Aug 5, 2025 • 0 new comments

• ENH: unset_index method

  #60869 commented on Aug 5, 2025 • 0 new comments

• API: consistent NaN treatment for pyarrow dtypes

  #61732 commented on Aug 2, 2025 • 0 new comments

• BUG: Add min/max methods to ArrowExtensionArray GH#61311

  #61924 commented on Aug 4, 2025 • 0 new comments

• CoW: add readonly flag to ExtensionArrays, return read-only EA/ndarray in .array/EA.to_numpy()

  #61925 commented on Aug 3, 2025 • 0 new comments

• TST: run python-dev CI on 3.14-dev

  #61950 commented on Aug 3, 2025 • 0 new comments

• DOC: added button to edit on GitHub

  #61956 commented on Aug 4, 2025 • 0 new comments

• continue from #61957 which closed with unmerged commit

  #62023 commented on Aug 2, 2025 • 0 new comments

• BUG: groupby.idxmin/idxmax will all NA values

  #57745 commented on Aug 2, 2025 • 0 new comments

• API: timestamp resolution inference - default to one unit (if possible) instead of being data-dependent?

  #58989 commented on Aug 3, 2025 • 0 new comments

• BUG/API: round-tripping non-nano datetime64s with to_json/read_json

  #55827 commented on Aug 3, 2025 • 0 new comments

• BUG: pd.Timestamp() defaults to [s] resolution instead of [ns]

  #52653 commented on Aug 3, 2025 • 0 new comments

• API: resolution for date_range, to_datetime, timedelta_range, to_timedelta

  #49060 commented on Aug 3, 2025 • 0 new comments

• DEPR: convert_dtypes keywords

  #62022 commented on Aug 3, 2025 • 0 new comments

• BUG: Python 3.14 may not increment refcount

  #61368 commented on Aug 3, 2025 • 0 new comments

• BUG: Instantiating pandas._libs.parsers.TextReader segfaults

  #53131 commented on Aug 4, 2025 • 0 new comments

• Decrypting file in read_csv

  #44097 commented on Aug 4, 2025 • 0 new comments

• BUG: NameError: name 'pa' is not defined despite `pyarrow` is installed

  #60573 commented on Aug 4, 2025 • 0 new comments

• dtype-unaware (empty) objects ("any" dtype)

  #19647 commented on Aug 4, 2025 • 0 new comments

• BUG/API: preserve dtype in Index `append()`

  #60159 commented on Aug 4, 2025 • 0 new comments

• BUG: Empty list passed to `Series` returns `object` dtype, but via `DataFrame` returns `float64`

  #56679 commented on Aug 4, 2025 • 0 new comments

• BUG: Different initialization methods lead to different dtypes (DataFrame)

  #42971 commented on Aug 4, 2025 • 0 new comments

• Dtype inconsistency when appending to empty dataframe

  #22621 commented on Aug 4, 2025 • 0 new comments

• DOC: Fix docstring validation errors for pandas.core.groupby

  #60365 commented on Aug 4, 2025 • 0 new comments

• DOC: Sort the pandas API reference navbar in alphabetical order

  #59164 commented on Aug 4, 2025 • 0 new comments