20 Pull requests merged by 11 people

• BUG: If both index and axis are passed to DataFrame.drop, raise a clear error

  #61855 merged Jul 18, 2025

• API: IncompatibleFrequency subclass TypeError

  #61875 merged Jul 18, 2025

• BUG: disallow exotic np.datetime64 unit

  #61882 merged Jul 17, 2025

• DOC: fix doctests for string dtype changes (top-level)

  #61887 merged Jul 17, 2025

• DOC: make doc build run with string dtype enabled

  #61864 merged Jul 17, 2025

• API: Index.__cmp__(Series) return NotImplemented

  #61884 merged Jul 16, 2025

• BUG: Timedelta with invalid keyword

  #61883 merged Jul 16, 2025

• ERR: improve exception message from timedelta64-datetime64

  #61876 merged Jul 16, 2025

• DOC: update Parquet IO user guide on index handling and type support across engines

  #61878 merged Jul 16, 2025

• DOC: show Parquet examples with default engine (without explicit pyarrow/fastparquet engine keyword)

  #61877 merged Jul 16, 2025

• String dtype: turn on by default

  #61722 merged Jul 16, 2025

• DOC: Add Raises section to to_numeric docstring

  #61868 merged Jul 16, 2025

• API: np.isinf on Index return Index[bool]

  #61874 merged Jul 16, 2025

• TST(string dtype): Resolve xfails in test_from_dummies

  #60694 merged Jul 15, 2025

• Remove incorrect line in Series init docstring

  #61849 merged Jul 14, 2025

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

  #61524 merged Jul 13, 2025

• DOC: Update README.md to reference issues related to 'good first issue' and 'Docs' properly

  #61836 merged Jul 12, 2025

• DOC: rm excessive backtick

  #61839 merged Jul 12, 2025

• DOC: Correct error message in AbstractMethodError for methodtype argument

  #61827 merged Jul 11, 2025

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

  #61624 merged Jul 11, 2025

14 Pull requests opened by 11 people

• BUG: Fix .rolling().mean() reassignment returning NaNs (pandas-dev#61841)

  #61852 opened Jul 14, 2025

• Doc simplify footer

  #61859 opened Jul 15, 2025

• BUG: Fix inconsistency with DateOffset near DST

  #61870 opened Jul 16, 2025

• BUG FIX: None of the included dtypes present in df will raise ValueError with clear error message.

  #61871 opened Jul 16, 2025

• DOC: Document that str.match accepts a regular expression

  #61879 opened Jul 16, 2025

• Set up ty in CI

  #61880 opened Jul 16, 2025

• Output formatting: preserve quoting for string categories

  #61891 opened Jul 17, 2025

• WEB: Remove Extensibility section from Roadmap

  #61892 opened Jul 17, 2025

• BUG: Fix concat dtype preservation through concat

  #61893 opened Jul 17, 2025

• BUG: fix padding for string categories in CategoricalIndex repr

  #61894 opened Jul 17, 2025

• DEPR: PeriodDtype.freq

  #61897 opened Jul 18, 2025

• FIX: Correct clip behavior test for lower > upper case

  #61899 opened Jul 18, 2025

• BUG FIX: to_json() with JSON Table Schema work correctly with string dtype.

  #61900 opened Jul 18, 2025

• DEPR: maybe_infer_ndim

  #61901 opened Jul 18, 2025

34 Issues closed by 7 people

• BUG: `AttributeError` in `pd.eval()` when calling attribute after binary operation

  #61898 closed Jul 18, 2025

• high-freq properties of low-freq Periods

  #18378 closed Jul 18, 2025

• BUG: drop doesn't recognise MultiIndexes

  #61823 closed Jul 18, 2025

• API: IncompatibleFrequency should subclass TypeError

  #55782 closed Jul 18, 2025

• Timestamp incorrectly handles datetime64 with exotic units

  #25611 closed Jul 17, 2025

• VOTE: Voting issue for PDEP-8: Inplace methods in pandas

  #56507 closed Jul 17, 2025

• DISC: Consider not requiring PyArrow in 3.0

  #57073 closed Jul 17, 2025

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

  #61596 closed Jul 17, 2025

• DEPR: Index == Series should return NotImplemented

  #36759 closed Jul 16, 2025

• API: Have invalid_comparison return pandas object following `__pandas_priority__`?

  #54475 closed Jul 16, 2025

• ENH: pd.Timedelta could issue warning when 'units' falls through to **kwargs

  #53801 closed Jul 16, 2025

• BUG: provide better error message for pd.Timedelta - pd.Series[Timestamp]

  #59571 closed Jul 16, 2025

• DOC: Lacking information on error type raised by pd.to_numeric

  #61811 closed Jul 16, 2025

• API: Index.__array_wrap__ stop special-casing bool dtype

  #52676 closed Jul 16, 2025

• REF: share code between pd.array and Series constructor

  #27460 closed Jul 16, 2025

• DISC: remove Index and EA subclasses

  #43002 closed Jul 16, 2025

• DEPR: __finalize__ and _metadata

  #51280 closed Jul 16, 2025

• API/DEPR: dtype=(str|bytes) interpret as pyarrow

  #52429 closed Jul 16, 2025

• API/DEPR: pd.array don't cast numpy int/float/bool arrays to nullable

  #53695 closed Jul 16, 2025

• DEPR: Period, PeriodFoo

  #54235 closed Jul 16, 2025

• BUG: DTA/TDA setitem breaks freq on views

  #31218 closed Jul 16, 2025

• Cython 3.0 Checklist

  #34213 closed Jul 16, 2025

• BUG: ArrowStringArray.__setitem__ breaks views

  #45419 closed Jul 16, 2025

• ENH: Extending EAs

  #51471 closed Jul 15, 2025

• DOC: Enforce Numpy Docstring Validation | pandas.ExcelFile through pandas.HDFStore

  #58067 closed Jul 15, 2025

• DOC: Enforce Numpy Docstring Validation | pandas.Timestamp

  #58505 closed Jul 15, 2025

• DOC: Enforce Numpy Docstring Validation | pandas.api.types

  #58577 closed Jul 15, 2025

• BUG: Add pyarrow strings to any_string_dtype fixture

  #58495 closed Jul 15, 2025

• BUG: pd.eval raises AttributeError: 'BinOp' object has no attribute 'value'

  #61861 closed Jul 15, 2025

• ENH: Python 3.13 free-threading support

  #59057 closed Jul 14, 2025

• DOC: Series.__init__ doc incorrectly says dtype is ignored if data is a Series

  #61848 closed Jul 14, 2025

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

  #61509 closed Jul 13, 2025

• DOC: README.md link for issues specified for Docs and good first issue doesn't reference properly

  #61835 closed Jul 12, 2025

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

  #61621 closed Jul 11, 2025

17 Issues opened by 12 people

• BUG: `rank` gives incorrect outputs on Windows with PyArrow backend

  #61896 opened Jul 18, 2025

• Output formatting: the repr of the Categorical categories (quoted or unquoted strings?)

  #61890 opened Jul 17, 2025

• BUG: make to_json with JSON Table Schema work correctly with string dtype

  #61889 opened Jul 17, 2025

• ENH: Images embedded in cells. The DISPIMG function of WPS

  #61888 opened Jul 17, 2025

• DOC: fix doctests for repr changes with the new string dtype

  #61886 opened Jul 17, 2025

• API: boolean ops with float dtype

  #61881 opened Jul 16, 2025

• BUG:float_precision type hints differ in release version from github and docs pandas==2.3.1

  #61873 opened Jul 16, 2025

• BUG: Operations not implemented for non-1D ExtensionArrays

  #61866 opened Jul 15, 2025

• BUG: describe(include=..) fails with unrelated error if provided data types are not present

  #61863 opened Jul 15, 2025

• BUG: DateOffset default temporal pattern does not work as expected with DST

  #61862 opened Jul 15, 2025

• ENH: New method "ends" as a combination of “head” and "tail"

  #61860 opened Jul 15, 2025

• BUG: Inconsistent .values NA/NaN

  #61856 opened Jul 14, 2025

• ENH: Backport free-threading support to 2.3

  #61844 opened Jul 13, 2025

• BUG: .rolling().mean() returns all NaNs on re-execution, despite .copy() use

  #61841 opened Jul 12, 2025

• ENH: Include line number and number of fields when read_csv() callable raises ParserWarning

  #61838 opened Jul 12, 2025

• BUG: read_csv() on_bad_lines callable does not raise ParserWarning when index_col is set

  #61837 opened Jul 12, 2025

• ENH: error message context.

  #61834 opened Jul 12, 2025

169 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.

• ENH: speed up wide DataFrame.line plots by using a single LineCollection

  #61764 commented on Jul 16, 2025 • 7 new comments

• DOC: add sections about big new features (CoW, string dtype) to 3.0.0 whatsnew notes

  #61724 commented on Jul 15, 2025 • 6 new comments

• DOC: Clarify broadcasting behavior when using lists in DataFrame arithmetic (GH18857)

  #61820 commented on Jul 17, 2025 • 3 new comments

• BUG: Raise OutOfBoundsDatetime in DataFrame.replace when value exceeds datetime64[ns] bounds (GH#61671)

  #61717 commented on Jul 14, 2025 • 3 new comments

• BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values

  #61659 commented on Jul 17, 2025 • 3 new comments

• [READY] perf improvements for strftime

  #51298 commented on Jul 17, 2025 • 3 new comments

• CLN: Use dedup_names for column name mangling in Python parser (#50371)

  #61670 commented on Jul 16, 2025 • 2 new comments

• ENH: Implement PDEP-17

  #61468 commented on Jul 15, 2025 • 2 new comments

• [WIP] ENH: support reading directory in read_csv

  #61275 commented on Jul 16, 2025 • 2 new comments

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

  #61804 commented on Jul 17, 2025 • 1 new comment

• BUG: Add PyArrow datelike type support for `map()`

  #61644 commented on Jul 14, 2025 • 1 new comment

• Fix void dtype handling

  #61637 commented on Jul 15, 2025 • 1 new comment

• BUG: `pd.Arrays.SparseArray` warning inconsistencies when contained in a `pd.DataFrame` (potential false positive)

  #58582 commented on Jul 16, 2025 • 0 new comments

• BUG: next_workday observance wrongly adds BDay to holidays on weekdays

  #58553 commented on Jul 16, 2025 • 0 new comments

• BUG: datetime parsing: error message indicating position of conflicting string is wrong for larger data

  #55345 commented on Jul 16, 2025 • 0 new comments

• BUG: Dataframe's `to_sql` method fails while trying to persist Dataframe to Postgtres in Version 2.2.0

  #57196 commented on Jul 16, 2025 • 0 new comments

• Deprecate accepting None in pd.concat

  #57846 commented on Jul 16, 2025 • 0 new comments

• BUG: AttributeError about dateutil.relativedelta when calling pd.read_json(json_data)

  #59227 commented on Jul 16, 2025 • 0 new comments

• BUG: pd.read_sql is incorrectly reading long int when connecting to Teradata

  #61667 commented on Jul 16, 2025 • 0 new comments

• BUG: user expected pd.isna to be False for NaNs with Float64Dtype

  #61758 commented on Jul 16, 2025 • 0 new comments

• API: Categorical constructor with dtype raise instead of casting to NA

  #40996 commented on Jul 16, 2025 • 0 new comments

• BUG: pd.DataFrame.mul has not support fill_value?

  #61581 commented on Jul 13, 2025 • 0 new comments

• Thousands separator for to_csv

  #30045 commented on Jul 16, 2025 • 0 new comments

• DOC/ERR: better error message on unsuccessful datetime parsing

  #10720 commented on Jul 16, 2025 • 0 new comments

• ENH: Add a function like PYQT signal

  #61829 commented on Jul 16, 2025 • 0 new comments

• BUG: Multindex difference not working on columns with type Timestamp[ns][pyarrow]

  #61382 commented on Jul 16, 2025 • 0 new comments

• BUG: Rolling variance is negative

  #52407 commented on Jul 16, 2025 • 0 new comments

• ERR: Remove __invert__ operations on dtype=object?

  #16873 commented on Jul 16, 2025 • 0 new comments

• ENH: .ewm add min() max() and count()

  #51706 commented on Jul 16, 2025 • 0 new comments

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

  #61700 commented on Jul 17, 2025 • 0 new comments

• BUG: `Series.interpolate` does not interpolate `pd.NA`

  #54400 commented on Jul 17, 2025 • 0 new comments

• ENH: Add table prefixes to to_sql method

  #60422 commented on Jul 15, 2025 • 0 new comments

• BUG: SQL connection

  #59224 commented on Jul 15, 2025 • 0 new comments

• BUG: Difference between calamine and openpyxl readers - columns with mixed data types

  #59186 commented on Jul 15, 2025 • 0 new comments

• BUG: to_sql does gives incorrect column name for index when callable passed in to method

  #59112 commented on Jul 15, 2025 • 0 new comments

• ENH: Adding hint to to_sql

  #61370 commented on Jul 15, 2025 • 0 new comments

• ENH: Adding pd.from_pydantic

  #61513 commented on Jul 15, 2025 • 0 new comments

• ENH: access arrow-backed map as a python dictionary

  #61427 commented on Jul 15, 2025 • 0 new comments

• Writing data to mysql database using df.to_sql method gives exception

  #61711 commented on Jul 15, 2025 • 0 new comments

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

  #60365 commented on Jul 15, 2025 • 0 new comments

• BUG: Compatibility Issues of Numpy Methods with pd.NA in Styler.bar

  #56425 commented on Jul 15, 2025 • 0 new comments

• ENH: Inform on row & column of failed type conversion when parsing CSV files

  #53966 commented on Jul 15, 2025 • 0 new comments

• Calling pd.PeriodIndex constructor on pd.Index cannot infer frequency, while first calling pd.DateTimeIndex on pd.Index and calling .to_period() does work

  #54869 commented on Jul 15, 2025 • 0 new comments

• BUG: incorrect handling of line breaks in OdsWriter

  #55728 commented on Jul 15, 2025 • 0 new comments

• Removal of members from pandas-triage team

  #61734 commented on Jul 15, 2025 • 0 new comments

• Roadmap page has numbered-only list when should be a mix of numbered and unnumbered

  #60913 commented on Jul 15, 2025 • 0 new comments

• BUG: Type error supplying SQLAlchemy NVARCHAR length in to_sql()

  #61660 commented on Jul 16, 2025 • 0 new comments

• ENH: PyPy Support

  #42509 commented on Jul 16, 2025 • 0 new comments

• BUG: pd.Grouper cannot be reused in some cases

  #41930 commented on Jul 16, 2025 • 0 new comments

• BUG: some cases of binary arithmetic between string and timedelta raise TypeError

  #59653 commented on Jul 17, 2025 • 0 new comments

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

  #19082 commented on Jul 17, 2025 • 0 new comments

• BUG: tz_localize(None) with Arrow timestamp

  #61780 commented on Jul 18, 2025 • 0 new comments

• DEPR: Deprecate xlrd and pyxlsb excel engines

  #56542 commented on Jul 18, 2025 • 0 new comments

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

  #57745 commented on Jul 18, 2025 • 0 new comments

• DIS: Keywords for multi-threading capabilities

  #43313 commented on Jul 18, 2025 • 0 new comments

• ENH: the error behaviour in pandas operation should be consistent rename erros are ignore by default whereas drop erros are raise

  #61681 commented on Jul 18, 2025 • 0 new comments

• ENH: Support f-string formatting for Period objects

  #48536 commented on Jul 18, 2025 • 0 new comments

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

  #60159 commented on Jul 18, 2025 • 0 new comments

• Give the merge copy parameter better documentation

  #4599 commented on Jul 18, 2025 • 0 new comments

• DEPR: restrict downstream usage of core.internals

  #40226 commented on Jul 18, 2025 • 0 new comments

• PDEP-8: Inplace methods in pandas

  #51466 commented on Jul 17, 2025 • 0 new comments

• PDEP-15: Reject PDEP-10

  #58623 commented on Jul 17, 2025 • 0 new comments

• ENH: add basic DataFrame.from_arrow class method for importing through Arrow PyCapsule interface

  #59696 commented on Jul 15, 2025 • 0 new comments

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

  #60772 commented on Jul 15, 2025 • 0 new comments

• ENH: Implement translations infrastructure

  #61380 commented on Jul 18, 2025 • 0 new comments

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

  #61533 commented on Jul 17, 2025 • 0 new comments

• DOC: Clarify str.cat output for Index object (GH35556)

  #61833 commented on Jul 17, 2025 • 0 new comments

• API: Breaking Changes in 3.0 (without deprecations)

  #44823 commented on Jul 17, 2025 • 0 new comments

• ENH: cumcount() for DataFrames and Series

  #12648 commented on Jul 17, 2025 • 0 new comments

• ENH: Add decimal parameter to to_numeric

  #4674 commented on Jul 17, 2025 • 0 new comments

• BUG: `to_numeric` fails to convert a Pyarrow Decimal series containing NA values.

  #61641 commented on Jul 17, 2025 • 0 new comments

• BUG: Timedelta created by to_timedelta does not add correctly to datetime in Pandas 2

  #53643 commented on Jul 17, 2025 • 0 new comments

• BUG: Inconsistent data types of `Series.min()` return values by python interpreters

  #55566 commented on Jul 17, 2025 • 0 new comments

• Add parameter of bias or ddof to DataFrame.skew()

  #54556 commented on Jul 17, 2025 • 0 new comments

• DOC: Extra float values appear after resampling in column used by groupby

  #50893 commented on Jul 17, 2025 • 0 new comments

• BUG: In master, math with periodindex + index of offset produces wrong result

  #50162 commented on Jul 17, 2025 • 0 new comments

• BUG: in describe() result, mean is to NaN or Inf, when change float64 to float32 or float16

  #48757 commented on Jul 17, 2025 • 0 new comments

• cannot get cut() to display desired bins label

  #15357 commented on Jul 17, 2025 • 0 new comments

• BUG: Incorrect behavior of binary operations when left/right operands have different type (Series/DataFrame)

  #37663 commented on Jul 17, 2025 • 0 new comments

• Deprecate fill_value argument for df.add

  #32608 commented on Jul 17, 2025 • 0 new comments

• Using python comparison operators when SparseArrays of uneven length raises uninformative error

  #32119 commented on Jul 17, 2025 • 0 new comments

• QST: Pandas describe() methods(with float16 and float32) are different

  #41277 commented on Jul 17, 2025 • 0 new comments

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

  #61687 commented on Jul 17, 2025 • 0 new comments

• FEEDBACK: PyArrow as a required dependency and PyArrow backed strings

  #54466 commented on Jul 17, 2025 • 0 new comments

• BUG (string dtype): logical operation with bool and string failing

  #60234 commented on Jul 17, 2025 • 0 new comments

• BUG: pandas read_xml with iterparse and stylesheets silently ignores stylesheets

  #58857 commented on Jul 15, 2025 • 0 new comments

• ADMIN: Upgrade to mailman 3

  #58592 commented on Jul 15, 2025 • 0 new comments

• BUG: Forcing an int dtype on DataFrame construction raises an odd error

  #58586 commented on Jul 15, 2025 • 0 new comments

• REGR?: ExponentialMovingWindow.aggregate raises on main with np.mean

  #58299 commented on Jul 15, 2025 • 0 new comments

• BUG: failed to roundtrip to pyarrow Table with ArrowDtype for DictionaryArray

  #58207 commented on Jul 15, 2025 • 0 new comments

• ENH: Allow Arrow types directly with pd.to_datetime

  #58220 commented on Jul 15, 2025 • 0 new comments

• BUG: 2.2.2 pep517 build fails

  #58274 commented on Jul 15, 2025 • 0 new comments

• ENH: Use a neutral format to have lossless interface with scipp, Astropy, Xarray

  #58217 commented on Jul 15, 2025 • 0 new comments

• ENH: Better error handling in `strftime`

  #58178 commented on Jul 15, 2025 • 0 new comments

• ENH: consistent strftime behaviour

  #58179 commented on Jul 15, 2025 • 0 new comments

• Inconsistent behaviour of GroupBy for BooleanArray series

  #58031 commented on Jul 15, 2025 • 0 new comments

• BUG: Inconsistent `RollingGroupby` Behaviour

  #58124 commented on Jul 15, 2025 • 0 new comments

• BUG: read_csv file handle not closed after error

  #58131 commented on Jul 15, 2025 • 0 new comments

• BUG: PeriodIndex to DatetimeIndex fail or have wrong/no frequency

  #58092 commented on Jul 15, 2025 • 0 new comments

• BUG: Read hdfs:/// is broken since 2.1.0

  #58078 commented on Jul 15, 2025 • 0 new comments

• ENH: `pd.read_json` ability to skip over first line when `lines=True`

  #58049 commented on Jul 15, 2025 • 0 new comments

• QST: somthing weird in using groupby.rolling.apply(function)

  #58061 commented on Jul 15, 2025 • 0 new comments

• BUG: Categorical columns using the PyArrow backend requires 4x more memory

  #58062 commented on Jul 15, 2025 • 0 new comments

• BUG: read_csv() raises IndexError when dict supplied as dtype uses integer keys of same sign

  #57944 commented on Jul 15, 2025 • 0 new comments

• ENH: rolling window, make the very first window have the first element of my series on its left

  #57873 commented on Jul 15, 2025 • 0 new comments

• BUG: to_parquet on column containing StringArray objects fails

  #57773 commented on Jul 15, 2025 • 0 new comments

• PERF: Arrow dtypes are much slower than Numpy for DataFrame.apply

  #61747 commented on Jul 13, 2025 • 0 new comments

• BUG: .round causes TypeError / NaN-

  #61712 commented on Jul 13, 2025 • 0 new comments

• Updating value of a single row of a column using loc or at fails

  #22040 commented on Jul 13, 2025 • 0 new comments

• BUG: Series created from pre-2.1 legacy pickles lose their names during .copy operations

  #61819 commented on Jul 13, 2025 • 0 new comments

• "drop" fails by default when label to drop is not in the index, but "rename" silently passes by. Wouldn't it make sense to synchronize?

  #40427 commented on Jul 14, 2025 • 0 new comments

• DOC: Typo within `Series.mask()` docs - alignment is done between self and cond, not cond and other

  #61781 commented on Jul 14, 2025 • 0 new comments

• ENH: Support attrs in feather files

  #60675 commented on Jul 14, 2025 • 0 new comments

• DOC: Simplify pandas theme footer

  #51536 commented on Jul 15, 2025 • 0 new comments

• BUG?: creating Categorical from pandas Index/Series with "object" dtype infers string

  #61778 commented on Jul 15, 2025 • 0 new comments

• BUG: CustomBusinessDay not respecting calendar

  #60647 commented on Jul 15, 2025 • 0 new comments

• BUG: inconsistent treatment of overflows between groupby.sum() and groupby.apply(lambda: _grp: _grp.sum()) and DataFrame.resample

  #60303 commented on Jul 15, 2025 • 0 new comments

• ENH: Add read_dbf method

  #61306 commented on Jul 15, 2025 • 0 new comments

• ENH: Add ignore_empty and ignore_all_na arguments to pd.concat

  #61210 commented on Jul 15, 2025 • 0 new comments

• BUG: setting column with 2D object array raises

  #61026 commented on Jul 15, 2025 • 0 new comments

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

  #60813 commented on Jul 15, 2025 • 0 new comments

• BUG: why arrow only work on mac arm？

  #60714 commented on Jul 15, 2025 • 0 new comments

• ENH: RST support

  #60616 commented on Jul 15, 2025 • 0 new comments

• BUG: subtracting datetime series from datetime dataframe, or datetime dataframe from datetime series, raises TypeError or UFuncTypeError

  #59529 commented on Jul 15, 2025 • 0 new comments

• BUG: regression in master for DataFrame.sparse.from_spmatrix

  #59212 commented on Jul 15, 2025 • 0 new comments

• ENH: Pipe `attrs` to_html Jinja2 environmental variables

  #59193 commented on Jul 15, 2025 • 0 new comments

• BUG: numerical inconsistency in calculating rolling kurtosis

  #58711 commented on Jul 15, 2025 • 0 new comments

• BUG: Unable to create PeriodIndex with freq of QuarterEnd with startingMonth != 12

  #55784 commented on Jul 15, 2025 • 0 new comments

• BUG: DatetimeIndex.round needs ambiguous='infer', although nothing ambiguous is in the index

  #55864 commented on Jul 15, 2025 • 0 new comments

• BUG: calendar day date_range AmbiguousTimeError with unambiguous DST boundaries

  #56240 commented on Jul 15, 2025 • 0 new comments

• DOC: Note multiset-like behaviour of `Index.union` for indexes with duplicates

  #56137 commented on Jul 15, 2025 • 0 new comments

• ENH: do not write noninformative indices (like RangeIndex) by default in to_csv

  #56129 commented on Jul 15, 2025 • 0 new comments

• QST: Using a chunksize iterator with StataWriter for very large queries

  #55881 commented on Jul 15, 2025 • 0 new comments

• BUG: read_csv() returns column indices, created as integers, as strings rather than integers

  #56380 commented on Jul 15, 2025 • 0 new comments

• BUG: timedelta.round fails to round to nearest day

  #57781 commented on Jul 15, 2025 • 0 new comments

• BUG: Using DateOffset with shift on a daylight savings transition produces error

  #57837 commented on Jul 15, 2025 • 0 new comments

• BUG: Unable to use CustomBusinessDays in a MultiIndex

  #57949 commented on Jul 15, 2025 • 0 new comments

• BUG: Losing information when handling of `NoneType`s in `pd.json_normalize`

  #58395 commented on Jul 15, 2025 • 0 new comments

• BUG: Error tokenizing data. C error: Expected 1 fields in line 3, saw 2

  #58216 commented on Jul 15, 2025 • 0 new comments

• ENH: `FY5253Quarter` to support alternative week allocations

  #58272 commented on Jul 15, 2025 • 0 new comments

• BUG: pandas.Grouper should not accept args and kwargs and should have permanent arguments

  #58388 commented on Jul 15, 2025 • 0 new comments

• BUG: Using `Series.diff()` on a Series with Periods on Windows shows an overflow error

  #58320 commented on Jul 15, 2025 • 0 new comments

• BUG: AssertionError when multiplying timedelta Series with a pandas nullable dtype Series

  #58054 commented on Jul 15, 2025 • 0 new comments

• BUG: inconsistency in the behaviour of `DatetimeIndex.is_year_start` on the frequency "BYS"

  #58920 commented on Jul 15, 2025 • 0 new comments

• ENH: Introduce type-safe constructors for `Timestamp` and `Timedelta`.

  #58475 commented on Jul 15, 2025 • 0 new comments

• BUG: groupby.first() with None values fills None value with next row

  #58611 commented on Jul 15, 2025 • 0 new comments

• BUG: to_sql does not populate index column with a value when using the mssql+pyodbc engine

  #59111 commented on Jul 15, 2025 • 0 new comments

• ENH: pd.to_sql(upsert=True, upsert_on_columns=['game_id'])

  #60434 commented on Jul 15, 2025 • 0 new comments

• BUG: Setting a numpy array as a column in Pandas uses only the first column of the array.

  #57765 commented on Jul 15, 2025 • 0 new comments

• BUG: to_sql fails for Oracle BLOB columns

  #57660 commented on Jul 15, 2025 • 0 new comments

• BUG: Boxplot does not apply colors set by Matplotlib rcParams for certain plot elements

  #57709 commented on Jul 15, 2025 • 0 new comments

• BUG: .str.replace repl string incorrectly parsed with pyarrow string dtype

  #57636 commented on Jul 15, 2025 • 0 new comments

• BUG: Unexpected read_csv parse_dates behavior

  #57512 commented on Jul 15, 2025 • 0 new comments

• ENH: background_gradient accepts a normalization parameter

  #56756 commented on Jul 15, 2025 • 0 new comments

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

  #56642 commented on Jul 15, 2025 • 0 new comments

• BUG: `SeriesGroupBy.plot` does not respect `cmap` parameter

  #56697 commented on Jul 15, 2025 • 0 new comments

• QST: Questions about HDF5 support of pandas

  #56560 commented on Jul 15, 2025 • 0 new comments

• BUG: Inconsistent data type inference in `read_csv` for large CSV files with mixed data types

  #56480 commented on Jul 15, 2025 • 0 new comments

• BUG: inconsistency in freq of DatetimeIndex when converting PeriodIndex.to_timestamp

  #56213 commented on Jul 15, 2025 • 0 new comments

• BUG: DateOffset with non-integer days is not working anymore

  #55909 commented on Jul 15, 2025 • 0 new comments

• DOC: read_fwf claims to support a [str] in the first argument

  #55790 commented on Jul 15, 2025 • 0 new comments

• BUG: Series.plot.hist segfault for timedelta64

  #43941 commented on Jul 15, 2025 • 0 new comments

• BUG: xticks in bar plot breaks plot

  #55508 commented on Jul 15, 2025 • 0 new comments

• BUG: roll_std compute different result when input same data with diffrent length

  #55343 commented on Jul 15, 2025 • 0 new comments

• ENH: Auto-detect text encoding to avoid UnicodeDecodeErrors

  #55197 commented on Jul 15, 2025 • 0 new comments

• ENH: Extending the `orient="table"` option to all Table Schema types

  #55038 commented on Jul 15, 2025 • 0 new comments

• BUG: Nullable Float64Dtype incorrectly converting NaN to NA when constructed with Arrow array

  #55668 commented on Jul 15, 2025 • 0 new comments

• BUG: infer_freq has stateful behavior

  #55794 commented on Jul 15, 2025 • 0 new comments

• DOC: na_values defaults for read_csv don't match STR_NA_VALUES correctly

  #55803 commented on Jul 15, 2025 • 0 new comments