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Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more
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Pandas v2.1.1

Pandas: v2.1.1 Release

Release date:
September 20, 2023
Previous version:
v2.1.0 (released August 30, 2023)
Magnitude:
1,337 Diff Delta
Contributors:
3 total committers
Data confidence:
Commits:
46 impacting commits

46 Commits in this Release

Ordered by the degree to which they evolved the repo in this version.

Backport PR #55189 on branch 2.1.x (Revert "DEPR: Deprecate returning a DataFrame in SeriesApply.apply_standard) (#55205)
Authored September 20, 2023
Backport PR #54826 on branch 2.1.x (Infer large_string type as pyarrow_numpy strings) (#54969)
Authored September 2, 2023
Backport PR #54983 on branch 2.1.x (BUG: pct_change showing unnecessary FutureWarning) (#55040)
Authored September 7, 2023
Backport PR #54880 on branch 2.1.x (REGR: comparing datetime vs None raises) (#54925)
Authored September 1, 2023
Backport PR #54927 on branch 2.1.x (REGR: interpolate raising if fill_value is given) (#55017)
Authored September 5, 2023
Backport PR #54985 on branch 2.1.x (REGR: rountripping datetime through sqlite doesn't work) (#54993)
Authored September 5, 2023
Backport PR #54982 on branch 2.1.x (REG: filter not respecting the order of labels) (#55022)
Authored September 6, 2023
Backport PR #54952 on branch 2.1.x (REGR: Arrow backed objects not propagating exceptions) (#55209)
Authored September 20, 2023
Backport PR #55000 on branch 2.1.x (BUG: ArrowDtype raising for fixed size list) (#55016)
Authored September 5, 2023
Backport PR #54954 on branch 2.1.x (REGR: read_csv splitting on comma with delim_whitespace) (#54967)
Authored September 2, 2023
Backport PR #54913 on branch 2.1.x (REGR: drop_duplicates raising for arrow strings) (#54955)
Authored September 2, 2023
Backport PR #55013 on branch 2.1.x (CI: Ignore hypothesis differing executors) (#55019)
Authored September 5, 2023
Backport PR #55052 on branch 2.1.x (Improve error message for StringDtype with invalid storage) (#55053)
Authored September 7, 2023
Backport PR #55042 on branch 2.1.x (REGR: DataFrameGroupBy.agg with duplicate column names and a dict) (#55056)
Authored September 7, 2023
Backport PR #55010 on branch 2.1.x (BLD: Build wheels for Python 3.12) (#55055)
Authored September 7, 2023
Backport PR #54914 on branch 2.1.x (REGR: concat raising for 2 different ea dtypes) (#55018)
Authored September 5, 2023
Backport PR #54885 on branch 2.1.x (REGR: setitem with part of a MultiIndex raises) (#54899)
Authored August 31, 2023
Backport PR #54784 on branch 2.1.x (CI: Unpin Cython) (#55154)
Authored September 16, 2023
Backport PR #54894 on branch 2.1.x (MAINT: Reflect changes from `numpy` namespace refactor Part 5) (#54905)
Authored August 31, 2023
Backport PR #54962 on branch 2.1.x (BUG: DataFrame.stack with future_stack=True failing when columns are tuples) (#54971)
Authored September 2, 2023
Backport PR #54884 on branch 2.1.x (REGR: value_counts raises with bins) (#54932)
Authored September 1, 2023
Backport PR #54881 on branch 2.1.x (REGR: read_csv raising when dtypes is specified with usecols) (#54926)
Authored September 1, 2023
Backport PR #55051 on branch 2.1.x (Fix pickle roundtrip for new arrow string dtype) (#55054)
Authored September 7, 2023
Backport PR #55048 on branch 2.1.x (COMPAT: bump pyarrow min version for div on duration) (#55073)
Authored September 8, 2023
Backport PR #54882 on branch 2.1.x (REGR: get_group raising with axis=1) (#54956)
Authored September 2, 2023
Backport PR #55072 on branch 2.1.x (BUG: dt.tz with ArrowDtype returned string) (#55124)
Authored September 13, 2023
Backport PR #54896 on branch 2.1.x (DOC: updated docstring for deprecation of axis=1 in groupby) (#54912)
Authored August 31, 2023
Backport PR #54895 on branch 2.1.x (REGR: Merge raising when left merging on arrow string index) (#54933)
Authored September 1, 2023
Backport PR #54945 on branch 2.1.x (REGR: MultiIndex.append raising for overlapping IntervalIndex levels) (#54968)
Authored September 2, 2023
Backport PR #54974 on branch 2.1.x (Include pyarrow_numpy string in efficient merge implementation) (#55021)
Authored September 6, 2023
Backport PR #55180 on branch 2.1.x (MAINT: Cleanup expired ndarray methods) (#55184)
Authored September 18, 2023
Backport PR #55185 on branch 2.1.x (CI: Fix no BLAS error in 32 bit build) (#55191)
Authored September 18, 2023
Backport PR #55210 on branch 2.1.x (CI: Pin matplotlib < 3.8) (#55216)
Authored September 20, 2023
Backport PR #55082 on branch 2.1.x (Updated future warning msg in transform() for Series.groupby) (#55097)
Authored September 11, 2023
Backport PR #55159 on branch 2.1.x (DOCS: temporary pin pydata-sphinx-theme to 0.13) (#55161)
Authored September 16, 2023
Backport PR #54949 on branch 2.1.x (BLD: improvements to meson.build files) (#55065)
Authored September 8, 2023
Backport PR #54879 on branch 2.1.x (DOC: Add release notes for 2.1.1) (#54891)
Authored August 31, 2023
Backport PR #55094 on branch 2.1.x (TST: Make test_hash_equality_invariance xfail more generic) (#55100)
Authored September 11, 2023
Backport PR #54958 on branch 2.1.x (BLD: Fix race condition) (#54965)
Authored September 2, 2023
Backport PR #55175 on branch 2.1.x (DEPS: Bump to 1.26 proper for Python 3.12) (#55203)
Authored September 19, 2023

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Top Contributors in v2.1.1

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Directory Browser for v2.1.1

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Release Notes Published

This is a patch release in the 2.1.x series and includes some regression and bug fixes. We recommend that all users upgrade to this version.

See the full whatsnew for a list of all the changes.

The release will be available on the defaults and conda-forge channels: conda install pandas Or via PyPI: python3 -m pip install --upgrade pandas Please report any issues with the release on the pandas issue tracker.

Thanks to all the contributors who made this release possible.

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