10 Pull requests merged by 8 people

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• DOC: Remove outdated comment, use DateOffset instead of BaseOffset in docs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

• Fix bug in Series.describe where the median is included any time the percentiles argument is not None

  #61158 merged Mar 21, 2025

• DOC: Add missing period

  #61150 merged Mar 20, 2025

• Fix #61123 with simple doc change

  #61146 merged Mar 19, 2025

• BUG: fix read_json ignoring the dtype with the pyarrow engine

  #60997 merged Mar 19, 2025

10 Pull requests opened by 9 people

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

  #61148 opened Mar 19, 2025

• BUG: Added deprecation warning to Timestamp constructor

  #61149 opened Mar 20, 2025

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

  #61151 opened Mar 20, 2025

• ENH: Adds `dict` & `**dict` support for `pd.set_option` [#61093]

  #61152 opened Mar 20, 2025

• Csv func

  #61157 opened Mar 20, 2025

• ENH: Support boolean masks for `iloc.__getitem__`

  #61162 opened Mar 21, 2025

• 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

14 Issues closed by 5 people

• 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

• BUG: Faulty DatetimeIndex union

  #61159 closed Mar 22, 2025

• BUG: `datetime64[s]` fails round trip using `.to_parquet` and `read_parquet`

  #61165 closed Mar 22, 2025

• ENH: Passing a single value to `.describe(percentiles = [0.25])` returns 25th- and 50th-percentile

  #60550 closed Mar 21, 2025

• Update plot docs when backend is set.

  #28618 closed Mar 20, 2025

• DOC: `read_excel` `nrows` parameter reads extra rows when tables are adjacent (no blank row)

  #61123 closed Mar 19, 2025

• BUG: read_json silently ignores the dtype when engine=pyarrow

  #59516 closed Mar 19, 2025

• DOC: Clarification on Python 3.13 support

  #61139 closed Mar 19, 2025

• BUG: astype transforms NA to "NA"

  #61141 closed Mar 19, 2025

13 Issues opened by 13 people

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

  #61180 opened Mar 26, 2025

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

  #61179 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

• ENH: Enable nsmallest/nlargest on object dtype

  #61166 opened Mar 22, 2025

• ENH: merge_asof threshold minimum

  #61164 opened Mar 21, 2025

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

  #61161 opened Mar 21, 2025

• ENH: Accept no fields for groupby by

  #61160 opened Mar 21, 2025

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

  #61156 opened Mar 20, 2025

• BUG: Impossible creation of array with dtype=string

  #61155 opened Mar 20, 2025

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

  #61153 opened Mar 20, 2025

58 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 20, 2025 • 6 new comments

• Bug: Save original index and remap after function completes

  #61116 commented on Mar 26, 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(string dtype): groupby/resampler.min/max returns float on all NA strings

  #60985 commented on Mar 24, 2025 • 2 new comments

• BUG: groupby.agg with UDF changing pyarrow dtypes

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

• DOC: Updated link for OVH server benchmark visualization

  #61108 commented on Mar 19, 2025 • 1 new comment

• BUG: Collision between equivalent frequencies 'QS-…

  #61142 commented on Mar 21, 2025 • 1 new comment

• Preserve column names in empty Dataframe

  #61143 commented on Mar 19, 2025 • 1 new comment

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

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

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

  #61126 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

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

  #61093 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: `pivot_table` drops rows and columns despite values being non-`NaN`

  #61113 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

• DEPS: Bump optional dependencies

  #60655 commented on Mar 25, 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 24, 2025 • 0 new comments

• [backport 2.3.x] API: ignore empty range/object dtype in Index setop operations (string dtype compat) (#60797)

  #60948 commented on Mar 21, 2025 • 0 new comments

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

  #60993 commented on Mar 22, 2025 • 0 new comments

• BUG: Fix return type of loc/iloc

  #61054 commented on Mar 20, 2025 • 0 new comments

• Bug: Fix for overflow at edge cases in `normalize()` by raising exception

  #61083 commented on Mar 19, 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: Datatypes not preserved on pd.read_excel

  #60088 commented on Mar 19, 2025 • 0 new comments

• BUG: `DataFrame.from_records()` ignores `columns` with iterator and `nrows=0`

  #61140 commented on Mar 19, 2025 • 0 new comments

• ENH: `DatetimeIndex.set_freq()`

  #61094 commented on Mar 19, 2025 • 0 new comments

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

  #61144 commented on Mar 19, 2025 • 0 new comments

• BUG: queries on categorical string columns in HDFStore.select() return unexpected results

  #57608 commented on Mar 19, 2025 • 0 new comments

• BUG: Series.plot.hist segfault for timedelta64

  #43941 commented on Mar 19, 2025 • 0 new comments

• TST: read_csv silently drops empty row

  #21995 commented on Mar 19, 2025 • 0 new comments

• ENH: fillna enhancement with method='nearest'

  #61124 commented on Mar 19, 2025 • 0 new comments

• Memory leakage when concatting list of dataframes

  #20849 commented on Mar 20, 2025 • 0 new comments

• ENH: Need API support and __repr__ to discover the storage used for strings

  #59342 commented on Mar 20, 2025 • 0 new comments

• ENH: Supporting third-party engines for all `map` and `apply` methods

  #61125 commented on Mar 20, 2025 • 0 new comments

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

  #53643 commented on Mar 20, 2025 • 0 new comments

• BUG: str.fullmatch behavior is not the same for object dtype and string[pyarrow] dtype

  #61072 commented on Mar 20, 2025 • 0 new comments

• BUG: .to_json() of periode_range gives OverflowError: Maximum recursion level reached

  #55490 commented on Mar 21, 2025 • 0 new comments

• BUG: ``Series.interpolate`` regression in latest Pandas 3.0.0 nightly (method 'linear' behaves like 'index')

  #61122 commented on Mar 22, 2025 • 0 new comments

• DEPR: Some dropna behaviors in DataFrame.pivot_table

  #53521 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: args offset in Timestamp.__new__ causes bugs

  #52343 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: timedeltas.pyx.c varies between builds

  #60078 commented on Mar 24, 2025 • 0 new comments