7 Pull requests merged by 6 people

• Update guidance on CFLAGS

  #61190 merged Mar 28, 2025

• BUG: Clip corr edge cases between -1.0 and 1.0

  #61154 merged Mar 25, 2025

• WEB: Remove self (Marco Gorelli) from "active maintainers" list

  #61163 merged Mar 25, 2025

• BUG: DataFrame.resample is changing the index type to MultiIndex when the dataframe is empty

  #61174 merged Mar 24, 2025

• DOC: Remove outdated comment, use DateOffset instead of BaseOffset in docs

  #61097 merged Mar 24, 2025

• DOC: Add punctuation to basics.rst in User Guide

  #61167 merged Mar 24, 2025

• WEB: Update sponsors and fix logos style

  #61121 merged Mar 24, 2025

9 Pull requests opened by 9 people

• ENH: Accept no fields for groupby by

  #61168 opened Mar 23, 2025

• DataFrame.dtypes.to_json OverflowError: Maximum recursion level reached

  #61171 opened Mar 23, 2025

• BUG: Handle line and bar on the same plot

  #61173 opened Mar 24, 2025

• update offsets.pyx to fix #60647

  #61181 opened Mar 26, 2025

• REGR: Interpolate with method=index

  #61183 opened Mar 26, 2025

• Doc pivot table

  #61184 opened Mar 26, 2025

• ENH: Reimplement DataFrame.lookup

  #61185 opened Mar 26, 2025

• BUG: Fix pyarrow categoricals not working for pivot and categoricals

  #61193 opened Mar 28, 2025

• DOC: User Guide Page on user-defined functions

  #61195 opened Mar 28, 2025

13 Issues closed by 4 people

• BUG: `to_datetime()` warns unnecessarily that format cannot be inferred

  #61196 closed Mar 29, 2025

• BUG: \0 null bytes in `str` not preserved in `pandas.CategoricalIndex` or `pandas.MultiIndex`

  #61189 closed Mar 28, 2025

• BUG: Series.unique() terminates strings prematurely on null Bytes

  #53720 closed Mar 28, 2025

• STYLE check pandas doesn't use external package when that package is vendored

  #47964 closed Mar 27, 2025

• BUG: Sorting fails in specific cases with pandas==2.1.1

  #61068 closed Mar 27, 2025

• BUG: replace with np.nan unexpectedly converts pd.Timestamp to pd.NaT

  #61179 closed Mar 26, 2025

• BUG: import pandas 2.2.3 on WSL 2.4.12.0 raises broken support for `numpy.longdouble` dtype warning

  #61153 closed Mar 26, 2025

• BUG: .corr() values significantly higher than 1

  #61120 closed Mar 25, 2025

• BUG: When upsampling an empty dataframe, the index type changes from DatetimeIndex to MultiIndex

  #55572 closed Mar 24, 2025

• DOC: should `DateOffset` always be used instead of `BaseOffset`?

  #60886 closed Mar 24, 2025

• ENH: add destructor to HDFStore

  #61169 closed Mar 24, 2025

• DataFrame.describe(percentiles=[]) still returns 50% percentile.

  #11866 closed Mar 24, 2025

• ENH: add as_index to value_counts and pivot_table

  #49069 closed Mar 24, 2025

11 Issues opened by 11 people

• ENH: adding a filter (and bold) to header when writing to excel

  #61194 opened Mar 28, 2025

• BUG: Boolean selection edge case.

  #61191 opened Mar 27, 2025

• BUG: date comparison fails when series is all pd.NaT values

  #61188 opened Mar 27, 2025

• BUG: DataFrame.min raises TypeError when column contains mixed types (e.g., np.nan and datetime)

  #61187 opened Mar 27, 2025

• BUG: engine calamine lost 0 when read_excel from vlookup cell

  #61186 opened Mar 27, 2025

• BUG: Negation of `.str.isnumeric()` changes `dtype` when `pd.NA` is present

  #61182 opened Mar 26, 2025

• BUG: Performance issue with fillna() after merging DataFrames

  #61180 opened Mar 26, 2025

• BUG: Inconsistency when converting week PeriodIndex into DatetimeIndex with astype("datetime64[ns]")

  #61177 opened Mar 25, 2025

• BUG: AttributeError on method call after binary operation in eval expression

  #61175 opened Mar 25, 2025

• BUG: pd.read_csv() on empty files should give an empty dataframe pd.DataFrame()

  #61172 opened Mar 24, 2025

• BUG: DataFrame.dtypes.to_json OverflowError: Maximum recursion level reached

  #61170 opened Mar 23, 2025

56 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.

• MNT: Bump dev pin on NumPy

  #60987 commented on Mar 29, 2025 • 9 new comments

• Bug: Save original index and remap after function completes

  #61116 commented on Mar 26, 2025 • 5 new comments

• BUG(string dtype): groupby/resampler.min/max returns float on all NA strings

  #60985 commented on Mar 29, 2025 • 4 new comments

• API (string dtype): implement hierarchy (NA > NaN, pyarrow > python) for consistent comparisons between different string dtypes

  #61138 commented on Mar 26, 2025 • 3 new comments

• Bug cov nat

  #60898 commented on Mar 26, 2025 • 2 new comments

• BUG: groupby.agg with UDF changing pyarrow dtypes

  #59601 commented on Mar 23, 2025 • 1 new comment

• DEPS: Bump optional dependencies

  #60655 commented on Mar 25, 2025 • 0 new comments

• Fix binary operations on attrs for Series and DataFrame

  #59636 commented on Mar 28, 2025 • 0 new comments

• DOC: Write user guide page on apply/map/transform methods

  #61126 commented on Mar 29, 2025 • 0 new comments

• BUG: TypeError: Cannot convert numpy.ndarray to numpy.ndarray

  #60184 commented on Mar 29, 2025 • 0 new comments

• Support for Storing and Retrieving Complex Data Types (e.g., Embeddings) in Pandas DataFrames

  #60895 commented on Mar 28, 2025 • 0 new comments

• ENH: Enable nsmallest/nlargest on object dtype

  #61166 commented on Mar 28, 2025 • 0 new comments

• BUILD: Cython.Compiler.Errors: 'free_threading_config.pxi' not found

  #61156 commented on Mar 28, 2025 • 0 new comments

• Move interchange protocol implementation into a separate project

  #56732 commented on Mar 27, 2025 • 0 new comments

• BUG: duplicated() on a empty DataFrame or a DataFrame with an empty subset of columns with a non-empty index

  #12869 commented on Mar 27, 2025 • 0 new comments

• BUG: `pivot_table` drops rows and columns despite values being non-`NaN`

  #61113 commented on Mar 27, 2025 • 0 new comments

• ENH: re-implement DataFrame.lookup.

  #40140 commented on Mar 27, 2025 • 0 new comments

• Relax meson pins in CI and Fix Missed Warnings

  #60681 commented on Mar 24, 2025 • 0 new comments

• TST(string dtype): Resolve xfails in test_from_dummies

  #60694 commented on Mar 24, 2025 • 0 new comments

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

  #60772 commented on Mar 28, 2025 • 0 new comments

• ENH(string dtype): fallback for HDF5 with UTF-8 surrogates

  #60993 commented on Mar 26, 2025 • 0 new comments

• BUG: Passing original properties of `DataFrame` and `Series` subclasses to their constructors

  #61101 commented on Mar 25, 2025 • 0 new comments

• BUG/TST/DEPR: Ensure dtype="category" always implies ordered=False & add tests

  #61118 commented on Mar 24, 2025 • 0 new comments

• BUG: Collision between equivalent frequencies 'QS-…

  #61142 commented on Mar 26, 2025 • 0 new comments

• Preserve column names in empty Dataframe

  #61143 commented on Mar 26, 2025 • 0 new comments

• String dtype: more informative repr (keeping brief __str__)

  #61148 commented on Mar 26, 2025 • 0 new comments

• ENH: Added dict support for `pd.set_option`

  #61151 commented on Mar 26, 2025 • 0 new comments

• Preserve Complex Data Types for to_csv

  #61157 commented on Mar 28, 2025 • 0 new comments

• ENH: merge_asof threshold minimum

  #61164 commented on Mar 22, 2025 • 0 new comments

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

  #19082 commented on Mar 22, 2025 • 0 new comments

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

  #54466 commented on Mar 23, 2025 • 0 new comments

• DOC: Add link to the "try pandas online" in the regular documentation

  #61060 commented on Mar 23, 2025 • 0 new comments

• DOC: Generating docs doesn't work if path has whitespaces

  #22836 commented on Mar 23, 2025 • 0 new comments

• DOC: document optional arguments on plot submethods

  #11042 commented on Mar 23, 2025 • 0 new comments

• TST: mixed_int_string Index

  #54072 commented on Mar 23, 2025 • 0 new comments

• BUG: Inconsistent dtype with GroupBy for StrDtype and all missing values

  #60810 commented on Mar 23, 2025 • 0 new comments

• API: creating DataFrame with no columns: object vs string dtype columns?

  #60338 commented on Mar 23, 2025 • 0 new comments

• BUG: Inconsistent index type when using read_csv with string[pyarrow] dtype

  #61145 commented on Mar 23, 2025 • 0 new comments

• BUG: pd.merge has unexpected behaviour when joining on index / column

  #57291 commented on Mar 24, 2025 • 0 new comments

• BUG: Timestamp.fromisoformat drops ISO 8601 timezone information

  #56398 commented on Mar 24, 2025 • 0 new comments

• BUG: fails to plot 2 plots with secondary y axis when index type is PeriodIndex and plot kinds are different

  #61161 commented on Mar 24, 2025 • 0 new comments

• BUG: Collision between equivalent frequencies 'QS-FEB' and 'QS-NOV'

  #61086 commented on Mar 24, 2025 • 0 new comments

• ENH: Automate reading of data in chunks

  #61110 commented on Mar 24, 2025 • 0 new comments

• BUG: groupby.sum() is inconsistent with df.sum() for large integers

  #34681 commented on Mar 24, 2025 • 0 new comments

• PERF: why nlargest is so slower?

  #61076 commented on Mar 25, 2025 • 0 new comments

• ENH: ArrowTemporalProperties' object has no attribute 'to_period'

  #59771 commented on Mar 25, 2025 • 0 new comments

• BUG: `ValueError: Length of values (5) does not match length of index (4)` when subtracting two series with MultIndex and Index and nan values

  #60908 commented on Mar 25, 2025 • 0 new comments

• BUG: Impossible creation of array with dtype=string

  #61155 commented on Mar 26, 2025 • 0 new comments

• BUG: `.map` & `.apply` would convert element type for extension array.

  #60766 commented on Mar 26, 2025 • 0 new comments

• BUG: timedeltas.pyx.c varies between builds

  #60078 commented on Mar 26, 2025 • 0 new comments

• WEB: Multiple "Getting Started" on pandas.io leads to different links

  #32307 commented on Mar 26, 2025 • 0 new comments

• ENH: Accept no fields for groupby by

  #61160 commented on Mar 26, 2025 • 0 new comments

• ENH: Replacing behavior currently provided by pandas.to_numeric using errors="ignore"

  #59221 commented on Mar 26, 2025 • 0 new comments

• BUG: args offset in Timestamp.__new__ causes bugs

  #52343 commented on Mar 26, 2025 • 0 new comments

• BUG: Datatypes not preserved on pd.read_excel

  #60088 commented on Mar 27, 2025 • 0 new comments

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

  #61093 commented on Mar 27, 2025 • 0 new comments