4 Pull requests merged by 3 people

• [backport 2.3.x] CI: Fix slow mamba solver issue by limiting boto3 version (#61594)

  #61653 merged Jun 24, 2025

• [backport 2.3.x] BUG: DataFrame.explode fails with str dtype (#61623)

  #61699 merged Jun 24, 2025

• BUG: DataFrame.explode fails with str dtype

  #61623 merged Jun 24, 2025

• fix for building docs on Windows

  #61686 merged Jun 22, 2025

6 Pull requests opened by 6 people

• Raise MergeError on mismatched signed/unsigned int merge keys

  #61694 opened Jun 23, 2025

• TST: Increase test coverage for pandas.io.formats.excel.py

  #61697 opened Jun 23, 2025

• DOC: move relevant whatsnew changes from 2.3.0 to 2.3.1 file

  #61698 opened Jun 24, 2025

• DOC: simplify theme footer config (fixes #60647)

  #61702 opened Jun 24, 2025

• TST: Refactor S3 tests

  #61703 opened Jun 24, 2025

• Slack Link Update issue #61690

  #61704 opened Jun 24, 2025

3 Issues closed by 2 people

• DISC: path to nullable-by-default integers and floats

  #58243 closed Jun 23, 2025

• BUG: Docs won't build (Unexpected exception in `doc\source\user_guide\enhancingperf.rst`)

  #60149 closed Jun 22, 2025

• DOC: Pandas contributor take limit

  #61626 closed Jun 22, 2025

7 Issues opened by 7 people

• ENH: When read_csv reports an error, include the column name and row number

  #61700 opened Jun 24, 2025

• ENH: Add prefix, suffix and sep arguments to shift method

  #61696 opened Jun 23, 2025

• ENH: Add `excel_sep_hint` parameter to `to_csv` for Excel compatibility

  #61692 opened Jun 23, 2025

• Proposal: Add pd.check(df) utility function for quick dataset diagnostics

  #61691 opened Jun 23, 2025

• DOC: The Slack invite link to join the Pandas Dev community is broken

  #61690 opened Jun 23, 2025

• BUG: Merge duplicates and validation failure when columns have type int64 and uint64

  #61688 opened Jun 22, 2025

• BUG: DataFrame.mul() corrupts data by setting values to zero

  #61687 opened Jun 22, 2025

45 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.

• BUG: fix: `list` as index item does not raise

  #61674 commented on Jun 23, 2025 • 5 new comments

• Implemented NumbaExecutionEngine

  #61487 commented on Jun 24, 2025 • 5 new comments

• BUG: Fix Index.equals between object and string

  #61541 commented on Jun 23, 2025 • 3 new comments

• BUG: Fix infer_dtype result for float with embedded pd.NA

  #61624 commented on Jun 23, 2025 • 2 new comments

• Fix/devcontainer qt deps

  #61611 commented on Jun 22, 2025 • 1 new comment

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

  #61530 commented on Jun 24, 2025 • 1 new comment

• DOC: Fix docs for various offset constructors

  #52431 commented on Jun 22, 2025 • 0 new comments

• BUG: np.nan to datetime assertionerror when too large datetime given

  #61671 commented on Jun 24, 2025 • 0 new comments

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

  #61386 commented on Jun 24, 2025 • 0 new comments

• BUG: replace value failed

  #61643 commented on Jun 24, 2025 • 0 new comments

• Moving to PyArrow dtypes by default

  #61618 commented on Jun 24, 2025 • 0 new comments

• DOC: Improve documentation for DataFrame.__setitem__ and .loc assignment from Series

  #61662 commented on Jun 24, 2025 • 0 new comments

• ENH: allow pd.merge() variables right_on and left_on to accept pd.Index() array_likes

  #58279 commented on Jun 24, 2025 • 0 new comments

• PDEP-15: Reject PDEP-10

  #58623 commented on Jun 23, 2025 • 0 new comments

• [WIP] ENH: support reading directory in read_csv

  #61275 commented on Jun 24, 2025 • 0 new comments

• BUG: Fix Dataframe handling of scalar Timestamp #61444

  #61450 commented on Jun 23, 2025 • 0 new comments

• BUG: Raise TypeError when joining with non-DataFrame using 'on=' (GH#61434)

  #61454 commented on Jun 25, 2025 • 0 new comments

• DOC: Improve DateOffset docstring with constructor and examples (#52431)

  #61476 commented on Jun 23, 2025 • 0 new comments

• ENH: improve optional import error message

  #61597 commented on Jun 23, 2025 • 0 new comments

• DOC: Show constructor arguments for some classes in `pd.series.offsets`

  #61605 commented on Jun 23, 2025 • 0 new comments

• BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes

  #61640 commented on Jun 23, 2025 • 0 new comments

• feature #58141: Consistent naming conventions for string dtype aliases

  #61651 commented on Jun 23, 2025 • 0 new comments

• BUG/TST: added TypeError if object dtypes are detected in dataframe

  #61682 commented on Jun 22, 2025 • 0 new comments

• BUG: Can only compare identically-labeled Series objects (string vs. object)

  #61099 commented on Jun 22, 2025 • 0 new comments

• BUG: `Index.drop_duplicates()` is inconsistent for unhashable values

  #60925 commented on Jun 22, 2025 • 0 new comments

• ENH: Switch to trusted publishing for package upload to PyPI in CI

  #61669 commented on Jun 23, 2025 • 0 new comments

• VOTE: Voting issue for PDEP-15: Reject adding PyArrow as a required dependency

  #61596 commented on Jun 23, 2025 • 0 new comments

• Incorrect rolling std() results on very large DataFrames

  #61677 commented on Jun 23, 2025 • 0 new comments

• BUG: Implicit conversion to float64 with isin()

  #61676 commented on Jun 23, 2025 • 0 new comments

• BUG: DataFrame.join(other) raises InvalidIndexError if column index is CategoricalIndex

  #61675 commented on Jun 23, 2025 • 0 new comments

• DOC: warn about apply with raw=True, if function returns Optional[int]

  #61632 commented on Jun 23, 2025 • 0 new comments

• BUG: PerformanceWarning when agg with pd.NamedAgg and as_index=False

  #61628 commented on Jun 23, 2025 • 0 new comments

• BUG: the behavior of DataFrameGroupBy.apply(..., include_groups=True) breaks post-mortem debugging

  #61627 commented on Jun 23, 2025 • 0 new comments

• BUG: infer_dtype result for float with embedded pd.NA

  #61621 commented on Jun 23, 2025 • 0 new comments

• BUG: Writing UUIDs fail

  #61602 commented on Jun 23, 2025 • 0 new comments

• BUG: StataWriter returns ascii error when length of string is < 2045, but encoded length is > 2045

  #61583 commented on Jun 23, 2025 • 0 new comments

• BUILD: Installation issue on Mac with M1 Pro arm64 processor. pandas_parser.cpython-311-darwin.so is using x86_64 arch

  #61566 commented on Jun 23, 2025 • 0 new comments

• ENH: Columns formatted as "Text" in Excel are read as numbers

  #61539 commented on Jun 23, 2025 • 0 new comments

• BUG: use of iloc with heterogeneous DataFrame sometimes performs undocumented conversions

  #61537 commented on Jun 23, 2025 • 0 new comments

• ENH: read_csv tz option

  #61535 commented on Jun 23, 2025 • 0 new comments

• raise TypeError when function returns object-like results

  #61529 commented on Jun 23, 2025 • 0 new comments

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

  #58989 commented on Jun 23, 2025 • 0 new comments

• BUG: CoW - eq not implemented for <class 'pandas.core.internals.blocks.ExtensionBlock'>

  #61622 commented on Jun 23, 2025 • 0 new comments

• ENH: ExcelWriter append or create mode

  #61634 commented on Jun 23, 2025 • 0 new comments

• DOC: Description of pandas_datetime_exec function

  #61631 commented on Jun 23, 2025 • 0 new comments