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27 Pull requests merged by 15 people
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Revert "ENH: Allow third-party packages to register IO engines"
#61767 merged
Jul 3, 2025 -
ENH: Allow third-party packages to register IO engines
#61642 merged
Jul 3, 2025 -
DEPR: object inference in to_stata
#56536 merged
Jul 3, 2025 -
[backport 2.3.x] CI: clean up wheel build workarounds now that Cython 3.1.0 is out (#61446)
#61752 merged
Jul 3, 2025 -
DEPS: bump pyarrow minimum version from 10.0 to 12.0
#61723 merged
Jul 3, 2025 -
Revert "[2.3.x] DEPS: Drop Python 3.9 (#60792)"
#61755 merged
Jul 3, 2025 -
BLD: Build wheels for 3.9 and musllinux-aarch64 for pandas 2.3
#61569 merged
Jul 2, 2025 -
chore: remove redundant words in comment
#61759 merged
Jul 2, 2025 -
TST (string dtype): resolve skip in misc test_memory_usage
#61757 merged
Jul 2, 2025 -
DOC: Pass docstring validation for Index.infer_objects
#61756 merged
Jul 1, 2025 -
BUG: Assigning boolean series with boolean indexer
#61743 merged
Jul 1, 2025 -
TST/CI: temporary upper pin for scipy in downstream tests for compat with statsmodels
#61750 merged
Jul 1, 2025 -
TST: fix decimal cast error message for pyarrow nightly tests
#61749 merged
Jul 1, 2025 -
[backport 2.3.x] DOC: move relevant whatsnew changes from 2.3.0 to 2.3.1 file (#61698)
#61751 merged
Jul 1, 2025 -
Use
TypeAlias
in code where types are declared#61504 merged
Jul 1, 2025 -
TST: Refactor S3 tests
#61703 merged
Jun 30, 2025 -
BUG: Fix return type of loc/iloc
#61054 merged
Jun 30, 2025 -
BUG: Copy attrs on pd.merge()
#60357 merged
Jun 30, 2025 -
ENH: improve optional import error message
#61597 merged
Jun 30, 2025 -
BUG: to_stata erroring when encoded text and normal text have mismatched length
#61629 merged
Jun 30, 2025 -
Description of pandas_datetime_exec function.
#61635 merged
Jun 30, 2025 -
DOC: move relevant whatsnew changes from 2.3.0 to 2.3.1 file
#61698 merged
Jun 30, 2025 -
DOC: Add missing Index.infer_objects link to API reference
#61736 merged
Jun 30, 2025 -
DOC: Fix grammar in AUTHORS.md
#61739 merged
Jun 30, 2025 -
CI: if no docstring, create error GL08 and don't validate - fix for numpydoc 1.9
#61744 merged
Jun 30, 2025
16 Pull requests opened by 10 people
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BUG: Raise OutOfBoundsDatetime in DataFrame.replace when value exceeds datetime64[ns] bounds (GH#61671)
#61717 opened
Jun 27, 2025 -
CI: add PyPI Trusted-Publishing “publish” job to wheels workflow (#61669)
#61718 opened
Jun 27, 2025 -
String dtype: turn on by default
#61722 opened
Jun 27, 2025 -
DOC: add sections about big new features (CoW, string dtype) to 3.0.0 whatsnew notes
#61724 opened
Jun 27, 2025 -
TST[string]: update expecteds for using_string_dtype to fix xfails
#61727 opened
Jun 27, 2025 -
POC: consistent NaN treatment for pyarrow dtypes
#61732 opened
Jun 28, 2025 -
adding pandas.api.typing.aliases and docs
#61735 opened
Jun 29, 2025 -
BUG: fillna with DataFrame input should preserve dtype when possible
#61742 opened
Jun 29, 2025 -
BUG: Fix assert_frame_equal with check_dtype=False for pd.NA dtype differences (GH#61473)
#61748 opened
Jun 30, 2025 -
BUG: .describe() doesn't work for EAs #61707
#61760 opened
Jul 2, 2025 -
ENH: speed up wide DataFrame.line plots by using a single LineCollection
#61764 opened
Jul 3, 2025 -
BUG: ensure to_numeric down-casts to uint64 for large unsigned integers
#61766 opened
Jul 3, 2025 -
BUG: NA.__and__, __or__, __xor__ with np.bool_ objects
#61768 opened
Jul 3, 2025 -
Improve MultiIndex label rename checks
#61769 opened
Jul 3, 2025 -
Fix unpickling of string dtypes of legacy pandas versions
#61770 opened
Jul 3, 2025 -
BUG[string]: incorrect index downcast in DataFrame.join
#61771 opened
Jul 3, 2025
14 Issues closed by 6 people
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BUG: Segmentation fault when misusing `VariableWindowIndexer.get_window_bounds`
#61753 closed
Jul 2, 2025 -
BUG: comparing strings of different dtypes errors in 2.3
#61570 closed
Jul 2, 2025 -
BUG: Incompatible dype warning when assigning boolean series with logical indexer
#57338 closed
Jul 1, 2025 -
BUG: loc[] returns object type instead of float
#60600 closed
Jun 30, 2025 -
ENH: Copy attrs on join (possibly depending on left, right, etc.)
#60351 closed
Jun 30, 2025 -
Misleading error message when PyTables is not installed
#61521 closed
Jun 30, 2025 -
BUG: StataWriter returns ascii error when length of string is < 2045, but encoded length is > 2045
#61583 closed
Jun 30, 2025 -
DOC: Description of pandas_datetime_exec function
#61631 closed
Jun 30, 2025 -
BUG: AttributeError in pandas.core.algorithms.diff when passing non-numeric types
#61728 closed
Jun 30, 2025 -
DOC: Index.infer_objects is missing from docs
#61733 closed
Jun 30, 2025 -
DISC: nanoarrow-backed ArrowStringArray
#58552 closed
Jun 29, 2025 -
ENH: Type support for variables in `DataFrame.query()`
#61731 closed
Jun 29, 2025 -
BUG: CI docstring-validation fails with AttributeError in numpydoc validate.py
#61720 closed
Jun 27, 2025 -
BUG/API: floordiv by zero in Int64Dtype
#61715 closed
Jun 27, 2025
10 Issues opened by 9 people
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BUG: Calling dict(df.groupby(...)) raises TypeError: 'str' object is not callable despite valid inputs
#61772 opened
Jul 3, 2025 -
BUG: StringDtype objects from pandas <2.3.0 cannot be reliably unpickled in 2.3.0.
#61763 opened
Jul 2, 2025 -
BUG: user expected pd.isna to be False for NaNs with Float64Dtype
#61758 opened
Jul 2, 2025 -
PERF: Arrow dtypes are much slower than Numpy for DataFrame.apply
#61747 opened
Jun 30, 2025 -
CLN: references/tests for item_cache
#61746 opened
Jun 30, 2025 -
CI Failures due to new scipy and new numpydoc
#61740 opened
Jun 29, 2025 -
Removal of members from pandas-triage team
#61734 opened
Jun 29, 2025 -
BUG: `read_csv()` : inconsistent dtype and content parsing.
#61730 opened
Jun 28, 2025 -
DOC: https://pandas.pydata.org/pandas-docs/version/2.3 does not work
#61721 opened
Jun 27, 2025 -
BUG: mapping categorical with single category to boolean returns category instead of bool dtype
#61719 opened
Jun 27, 2025
74 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.
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DOC: add pandas 3.0 migration guide for the string dtype
#61705 commented on
Jun 30, 2025 • 15 new comments -
BUG: Require sample weights to sum to less than 1 when replace = True
#61582 commented on
Jul 2, 2025 • 5 new comments -
feature #49580: support new-style float_format string in to_csv
#61650 commented on
Jun 30, 2025 • 4 new comments -
Fix/devcontainer qt deps
#61611 commented on
Jul 2, 2025 • 2 new comments -
BUG: Add fillna at the beginning of _where not to fill NA. #60729
#60772 commented on
Jun 27, 2025 • 1 new comment -
Implemented NumbaExecutionEngine
#61487 commented on
Jul 3, 2025 • 1 new comment -
BUG: Fix pivot_table margins to include NaN groups when dropna=False
#61524 commented on
Jul 1, 2025 • 1 new comment -
BUG: Add PyArrow datelike type support for `map()`
#61644 commented on
Jun 29, 2025 • 1 new comment -
BUG: Fix lost precision with common type of uint64/int64
#61679 commented on
Jul 2, 2025 • 1 new comment -
BUG: Incorrect logical operation between pandas dataframe and series
#60204 commented on
Jul 2, 2025 • 0 new comments -
BUG/API: preserve dtype in Index `append()`
#60159 commented on
Jul 2, 2025 • 0 new comments -
`pandas.__version__` is `2.3.0+4.g1dfc98e16a` in pandas 2.3.0 and python 3.9, not `2.3.0`
#61579 commented on
Jul 3, 2025 • 0 new comments -
DEPR: List of deprecations to be removed in 4.0
#56596 commented on
Jul 3, 2025 • 0 new comments -
BUG: "Python int too large" in maybe_convert_objects with numpy 1.26
#60023 commented on
Jul 3, 2025 • 0 new comments -
ENH: Restore the functionality of `.fillna`
#59831 commented on
Jul 2, 2025 • 0 new comments -
RLS: 2.3.1
#61590 commented on
Jul 3, 2025 • 0 new comments -
BUG: Series.mul silently returns wrong values with `UInt8` dtype when overflowing the max value range
#59261 commented on
Jul 2, 2025 • 0 new comments -
Request for guidance on issues for upcoming PyData Yerevan pandas sprint
#61347 commented on
Jul 3, 2025 • 0 new comments -
BUG: pyarrow stripping leading zeros with dtype=str
#57666 commented on
Jul 3, 2025 • 0 new comments -
ENH: Replacing behavior currently provided by pandas.to_numeric using errors="ignore"
#59221 commented on
Jul 2, 2025 • 0 new comments -
VOTE: Voting issue for PDEP-15: Reject adding PyArrow as a required dependency
#61596 commented on
Jul 3, 2025 • 0 new comments -
PDEP-15: Reject PDEP-10
#58623 commented on
Jul 1, 2025 • 0 new comments -
BUG: incompatible dtype when creating bool column with df.at
#56600 commented on
Jul 2, 2025 • 0 new comments -
[WIP] ENH: support reading directory in read_csv
#61275 commented on
Jul 3, 2025 • 0 new comments -
ENH: Implement translations infrastructure
#61380 commented on
Jul 2, 2025 • 0 new comments -
ENH: Add `force_suffixes` boolean argument to `pd.merge`
#61498 commented on
Jul 2, 2025 • 0 new comments -
ENH: Support Plugin Accessors Via Entry Points
#61499 commented on
Jun 27, 2025 • 0 new comments -
Parallelize test_sql.py - Issue #60378
#61551 commented on
Jul 3, 2025 • 0 new comments -
PDEP-18: Nullable Object Dtype
#61599 commented on
Jun 27, 2025 • 0 new comments -
DOC: Show constructor arguments for some classes in `pd.series.offsets`
#61605 commented on
Jul 1, 2025 • 0 new comments -
BUG: Fix infer_dtype result for float with embedded pd.NA
#61624 commented on
Jul 3, 2025 • 0 new comments -
BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes
#61640 commented on
Jul 2, 2025 • 0 new comments -
BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values
#61659 commented on
Jul 2, 2025 • 0 new comments -
BUG/TST: added TypeError if object dtypes are detected in dataframe
#61682 commented on
Jun 30, 2025 • 0 new comments -
WEB: add note to PDEP-10 about delayed timeline for requiring pyarrow
#61706 commented on
Jun 29, 2025 • 0 new comments -
POC: NA-only behavior for numpy-nullable dtypes
#61708 commented on
Jul 3, 2025 • 0 new comments -
POC: PDEP16 default to masked nullable dtypes
#61716 commented on
Jun 28, 2025 • 0 new comments -
BUG: DataFrameGroupBy.__getitem__ fails with tuples on multi-level column objects
#58282 commented on
Jul 2, 2025 • 0 new comments -
QST: Should the absence of tzdata package affect the performance in any way ?
#61218 commented on
Jun 29, 2025 • 0 new comments -
BUG: arithmetic between datetime.timedelta scalar and series produces timedelta64[us] instead of timedelta64[ns]
#59656 commented on
Jun 29, 2025 • 0 new comments -
BUG: Segfault on `np.maximum(series, ...)`
#60611 commented on
Jun 29, 2025 • 0 new comments -
BUG: why arrow only work on mac arm?
#60714 commented on
Jun 29, 2025 • 0 new comments -
Support for Storing and Retrieving Complex Data Types (e.g., Embeddings) in Pandas DataFrames
#60895 commented on
Jun 29, 2025 • 0 new comments -
ENH: Add an iterdicts() function
#60901 commented on
Jun 29, 2025 • 0 new comments -
ENH: Automate reading of data in chunks
#61110 commented on
Jun 29, 2025 • 0 new comments -
ENH: The method of obtaining a certain cell or slice of the dataframe is confusing and unclear
#61232 commented on
Jun 29, 2025 • 0 new comments -
ENH: Utility to return "feasible" dtype for `infer_dtype` output.
#61256 commented on
Jun 29, 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
Jun 29, 2025 • 0 new comments -
BUG: pre-commit version 4.0.0 is required
#61328 commented on
Jun 29, 2025 • 0 new comments -
BUG: replace value failed
#61643 commented on
Jun 29, 2025 • 0 new comments -
ENH: read_xml handling of bad lines
#59384 commented on
Jun 29, 2025 • 0 new comments -
ENH: read_xml() does not allow to specify huge_tree=True for the 'lxml' parser.
#61290 commented on
Jun 29, 2025 • 0 new comments -
BUG: pandas read_xml with iterparse and stylesheets silently ignores stylesheets
#58857 commented on
Jun 29, 2025 • 0 new comments -
ENH: Implement `skiptrailingspace` parameter for `read_csv`
#60813 commented on
Jun 28, 2025 • 0 new comments -
FEEDBACK: PyArrow as a required dependency and PyArrow backed strings
#54466 commented on
Jun 27, 2025 • 0 new comments -
BUG: read_csv not guessing delimiter
#47024 commented on
Jun 27, 2025 • 0 new comments -
BUG: `to_numeric` fails to convert a Pyarrow Decimal series containing NA values.
#61641 commented on
Jul 2, 2025 • 0 new comments -
TRACKER: new default String dtype (pyarrow-backed, numpy NaN semantics)
#54792 commented on
Jul 2, 2025 • 0 new comments -
Moving to PyArrow dtypes by default
#61618 commented on
Jul 1, 2025 • 0 new comments -
ENH: generic `save` and `read` methods for DataFrame
#60786 commented on
Jul 1, 2025 • 0 new comments -
ENH: add option to save json without escaping forward slashes
#61442 commented on
Jul 1, 2025 • 0 new comments -
ENH: read_csv tz option
#61535 commented on
Jul 1, 2025 • 0 new comments -
BUG: set_index with pyarrow timestamp type does not produce DatetimeIndex
#60561 commented on
Jul 1, 2025 • 0 new comments -
BUG: Converting string of type lxml.etree._ElementUnicodeResult to a datetime using pandas.to_datetime results in a TypeError.
#60933 commented on
Jul 1, 2025 • 0 new comments -
ENH: Decimal year
#60391 commented on
Jul 1, 2025 • 0 new comments -
ENH: Adding pd.from_pydantic
#61513 commented on
Jun 30, 2025 • 0 new comments -
BUG: Inconsistent behavior surrounding pd.fillna
#61568 commented on
Jun 30, 2025 • 0 new comments -
BUG: doing df.to_parquet and then reading it with pd.read_parquet causes KeyError
#61714 commented on
Jun 30, 2025 • 0 new comments -
BUG: .describe() doesn't work for EAs
#61707 commented on
Jun 30, 2025 • 0 new comments -
BUG: .round causes TypeError / NaN-
#61712 commented on
Jun 29, 2025 • 0 new comments -
BUG: dtype keyword in Series constructor ignored for Series input in certain cases
#59060 commented on
Jun 29, 2025 • 0 new comments -
ENH: Make ExtensionArray a Protocol
#57633 commented on
Jun 29, 2025 • 0 new comments -
QST: Why is subtracting pandas.timedelta from pandas.date not vectorized?
#58315 commented on
Jun 29, 2025 • 0 new comments -
ENH: read_parquet as a class method
#58303 commented on
Jun 29, 2025 • 0 new comments