16 Pull requests merged by 14 people

• Backport PR #61518 on branch 2.3.x (TST: Use external_error_raised for numpy-raised test_error_invalid_values)

  #61520 merged May 30, 2025

• TST: Use external_error_raised for numpy-raised test_error_invalid_values

  #61518 merged May 30, 2025

• BUG: Fix DatetimeIndex timezone preservation when joining indexes with same timezone but different units

  #61234 merged May 30, 2025

• BUG: Raise clear error for duplicate id_vars in melt (GH61475)

  #61484 merged May 30, 2025

• BUG: Fix inconsistent returned objects when applying groupby aggregations

  #61508 merged May 30, 2025

• BUGFIX: escape quotechar when escapechar is not None (even if quoting=csv.QUOTE_NONE)

  #61514 merged May 30, 2025

• ENH: Added dict support for pd.set_option

  #61151 merged May 29, 2025

• ENH: Support third-party execution engines in Series.map

  #61467 merged May 27, 2025

• CLN Replace direct import of closing with qualified contextlib usage

  #61506 merged May 27, 2025

• Backport PR #60739 on branch 2.3.x (ENH: pandas.api.interchange.from_dataframe now uses the Arrow PyCapsule Interface if available, only falling back to the Dataframe Interchange Protocol if that fails)

  #61488 merged May 27, 2025

• DOC: Typo in shared_docs

  #61497 merged May 27, 2025

• DOC: use Hashable instead of label

  #61500 merged May 27, 2025

• DOC: Fixes dangling parenthesis in .rst files

  #61501 merged May 27, 2025

• DOC: Restructure and expand UDF page

  #61470 merged May 27, 2025

• DOC: Fix sparse and dense array memory usage comparison.

  #61495 merged May 26, 2025

• DOC: Fix incorrect reST markups in What's new

  #61492 merged May 26, 2025

13 Pull requests opened by 8 people

• ENH: Add `force_suffixes` boolean argument to `pd.merge`

  #61498 opened May 26, 2025

• ENH: Support plugin DataFrame accessor via entry points (#29076)

  #61499 opened May 26, 2025

• Change internal types in individual files to be private. Use `TypeAlias` in code where types are declared.

  #61504 opened May 27, 2025

• ENH: Implement to_iceberg

  #61507 opened May 27, 2025

• BUG: Fix sorting by column named None in DataFrame.sort_values (GH#61512)

  #61517 opened May 30, 2025

• BUILD: Bump Cython to 3.1

  #61519 opened May 30, 2025

• BUG: Fix pivot_table margins to include NaN groups when dropna=False

  #61524 opened May 31, 2025

• BUG: Fix assert_frame_equal dtype handling when check_dtype=False (#61473)

  #61525 opened May 31, 2025

• DOC: fix ES01 for pandas.plotting.autocorrelation_plot

  #61526 opened May 31, 2025

• ENH: Implement DataFrame.select

  #61527 opened May 31, 2025

• DOC: Typo fix for .astype() in cheatsheet

  #61528 opened May 31, 2025

• API: Replace na_action parameter in Series/DataFrame/Index.map by the standard skipna

  #61530 opened Jun 1, 2025

• BUG: Fix Series.str.zfill for ArrowDtype string arrays #61485

  #61533 opened Jun 1, 2025

10 Issues closed by 6 people

• BUG: to_latex does not escape % with percent formatter

  #61478 closed May 30, 2025

• BUG: Timezone upon DatetimeIndex union is changed to UTC

  #60080 closed May 30, 2025

• BUG: More Indicative Error when pd.melt with duplicate columns

  #61475 closed May 30, 2025

• BUG: Inconsistent returned objects when applying groupby aggregations

  #61503 closed May 30, 2025

• BUG: to_csv() quotechar/escapechar behavior differs from csv module

  #61407 closed May 30, 2025

• ENH: Support dict to `pd.set_option` for cleaner code

  #61093 closed May 29, 2025

• ENH: re-implement DataFrame.lookup.

  #40140 closed May 29, 2025

• BUG: Mask changing value despite of no True return

  #61505 closed May 27, 2025

• ENH: Broaden `dict` to `Mapping` as replace argument

  #61440 closed May 27, 2025

• ENH: Supporting a `mapper` function as the 1st argument in `DataFrame.set_axis`

  #61493 closed May 27, 2025

16 Issues opened by 15 people

• ENH: read_csv tz option

  #61535 opened Jun 2, 2025

• ENH: speed up `DataFrame.plot` using `LineCollection`

  #61532 opened Jun 1, 2025

• CI: Micromamba taking too long to resolve the environments in the CI

  #61531 opened Jun 1, 2025

• raise TypeError when function returns object-like results

  #61529 opened Jun 1, 2025

• DOC: Official "Cheat Sheet" shows `as_type()` method, correct signature is `astype()`

  #61523 opened May 30, 2025

• ENH: Implement DataFrame.select to select columns

  #61522 opened May 30, 2025

• Misleading error message when PyTables is not installed

  #61521 opened May 30, 2025

• BUG: DataFrame.sample weights not required to sum to less than 1

  #61516 opened May 29, 2025

• ENH: Ability to name columns/index levels when using `.str.split(..., expand=True)` on `Index`/`Series`

  #61515 opened May 29, 2025

• ENH: Adding pd.from_pydantic

  #61513 opened May 29, 2025

• BUG: Cannot sort by columns named None

  #61512 opened May 28, 2025

• DOC: Docker image provided on "Debugging C extensions" is out of date

  #61511 opened May 28, 2025

• BUG: VSCode go to definition doesn't work with pandas.api.extensions.register_dataframe_accessor

  #61510 opened May 28, 2025

• BUG: margin for pivot_table is incorrect with NA column/index values

  #61509 opened May 28, 2025

• BUG: Print alignement problem with some unicode characters

  #61502 opened May 26, 2025

• BUG: Passing string[pyarrow] to the dtype parameter of e.g. csv_read() does produce a string type Series

  #61496 opened May 26, 2025

36 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.

• Implemented NumbaExecutionEngine

  #61487 commented on May 31, 2025 • 6 new comments

• ENH: Implement PDEP-17

  #61468 commented on Jun 2, 2025 • 6 new comments

• ENH: Implemented MultiIndex.searchsorted method ( GH14833)

  #61435 commented on May 31, 2025 • 4 new comments

• TST: Testing for mixed int/str Index

  #61349 commented on Jun 2, 2025 • 3 new comments

• Fix #61072: inconsistent fullmatch results with regex alternation

  #61343 commented on May 30, 2025 • 2 new comments

• BUG: Add fillna at the beginning of _where not to fill NA. #60729

  #60772 commented on May 30, 2025 • 1 new comment

• BUG: Raise ValueError on integer indexers containing NA; skip test for unsupported EAs(#56727)

  #61465 commented on May 28, 2025 • 0 new comments

• DOC: Improve lookup documentation

  #61471 commented on May 30, 2025 • 0 new comments

• BUG: Raise MergeError when suffixes result in duplicate column names …

  #61422 commented on May 30, 2025 • 0 new comments

• ENH: Implement translations infrastructure

  #61380 commented on Jun 1, 2025 • 0 new comments

• BUG: Raise ValueError for non-string columns in read_json orient='table' (GH19129)

  #61359 commented on Jun 2, 2025 • 0 new comments

• Fixed issue where rolling.kurt() calculations would be effected by values outside of scope

  #61481 commented on May 27, 2025 • 0 new comments

• WEB: Refine PDEP presentation

  #58791 commented on May 30, 2025 • 0 new comments

• ENH: Support for Python 3.13.2 free-threading version

  #60972 commented on Jun 2, 2025 • 0 new comments

• ENH: Python 3.13 free-threading support

  #59057 commented on Jun 2, 2025 • 0 new comments

• ENH: support new-style float_format string in to_csv

  #49580 commented on Jun 1, 2025 • 0 new comments

• BUG: Slower `DataFrame.plot` with `DatetimeIndex`

  #61398 commented on Jun 1, 2025 • 0 new comments

• BUG: zfill with pyarrow string

  #61485 commented on Jun 1, 2025 • 0 new comments

• pandas logo license question

  #61486 commented on May 26, 2025 • 0 new comments

• TST: Make test_sql.py parallelizable

  #60378 commented on May 26, 2025 • 0 new comments

• DOC: document optional arguments on plot submethods

  #11042 commented on May 27, 2025 • 0 new comments

• ENH: Using pyright to analyze missing type declarations

  #39813 commented on May 27, 2025 • 0 new comments

• BUG: Series.mask incorrectly replaces positions of pd.NA in the cond argument

  #60729 commented on May 27, 2025 • 0 new comments

• BLD: Drop Python 3.10 support

  #60059 commented on May 27, 2025 • 0 new comments

• ENH: Make DataFrame.filter accept filters in new formats

  #61317 commented on May 27, 2025 • 0 new comments

• BUG: date_range behaviour is inconsistent when using inclusive=right

  #61483 commented on May 28, 2025 • 0 new comments

• ENH: The row and column indexing mechanism of your dataframe is inefficient, leading to errors and unnecessary time consumption

  #61230 commented on May 28, 2025 • 0 new comments

• BUG: documented usage of of `str.split(...).str.get` fails on dtype `large_string[pyarrow]`

  #61431 commented on May 28, 2025 • 0 new comments

• ENH: read_csv with usecols shouldn't change column order

  #61386 commented on May 29, 2025 • 0 new comments

• ENH: Need new semantics for selecting parquet engine in Pandas 3

  #56642 commented on May 29, 2025 • 0 new comments

• TRACKER: new default String dtype (pyarrow-backed, numpy NaN semantics)

  #54792 commented on May 29, 2025 • 0 new comments

• BUG(?): rolling sum with pyarrow types results in float64 instead of preserving integer type

  #61144 commented on May 30, 2025 • 0 new comments

• BUG: Series.str.isdigit with pyarrow dtype doesn't honor unicode superscripts

  #61466 commented on May 30, 2025 • 0 new comments

• DOC: Fix docs for various offset constructors

  #52431 commented on May 30, 2025 • 0 new comments

• BUG: Creating Index name using `names` names argument, doesn't set index name

  #19082 commented on May 31, 2025 • 0 new comments

• BUG: assert_frame_equal(check_dtype=False) fails when comparing two DFs containing pd.NA that only differ in dtype (object vs Int32)

  #61473 commented on Jun 1, 2025 • 0 new comments