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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 v1.4.4

Pandas: v1.4.4 Release

Release date:
August 31, 2022
Previous version:
v1.4.3 (released June 23, 2022)
Magnitude:
1,181 Diff Delta
Contributors:
6 total committers
Data confidence:
Commits:
35 impacting commits

35 Commits in this Release

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

Backport PR #47762 on branch 1.4.x (REGR: preserve reindexed array object (instead of creating new array) for concat with all-NA array) (#48308)
Authored August 30, 2022
Backport PR #47474 on branch 1.4.x (BUG: to_sql with method=callable not returning int raising TypeError) (#47590)
Authored July 4, 2022
Backport PR #47771 on branch 1.4.x (REGR: fix pd.cut with datetime IntervalIndex as bins) (#48166)
Authored August 19, 2022
Backport PR #45287 on branch 1.4.x (BUG: frame[x].loc[y] inconsistent with frame.at[x, y]) (#45287) (#47921)
Authored August 3, 2022
Backport PR #48164 on branch 1.4.x (BUG/REGR: Fix subset for DataFrameGroupBy.value_counts) (#48204)
Authored August 23, 2022
Manual Backport PR #48057 on branch 1.4.x (REGR: fix regression in scalar setitem with setting a length-1 array-like) (#48161)
Authored August 19, 2022
Backport PR #47763 on branch 1.4.x (BUG: fix regression in Series[string] setitem setting a scalar with a mask) (#47784)
Authored July 19, 2022
Backport PR #48178 on branch 1.4.x (REGR: loc not working with NamedTuple) (#48217)
Authored August 23, 2022
Backport PR #48167 on branch 1.4.x (BUG: DTI.intersection with DST transition) (#48189)
Authored August 22, 2022
Backport PR #48246 on branch 1.4.x (REGR: iloc not possible for sparse DataFrame) (#48310)
Authored August 30, 2022
Backport PR #47581 on branch 1.4.x (BUG: DataFrame.loc not aligning rhs df for single block case) (#47984)
Authored August 8, 2022
"Backport PR #47508 on branch 1.4.x REGR: concat materializing index even if sort is not necessary )" (#47565)
Authored July 2, 2022
Backport PR #47550 on branch 1.4.x (REGR: fix eval with inplace=True to correctly update column values inplace) (#48151)
Authored August 19, 2022
Manual Backport PR #47803 on branch 1.4.x (TST/CI: xfail test_round_sanity for 32 bit) (#47824)
Authored July 23, 2022
Backport PR #48245 on Branch 1.4.x (CI: Skip test_round_sanity tests due to failures) (#48269)
Authored August 26, 2022
Backport PR #48065 on branch 1.4.x (CI/DEPS: Fix timezone test due to pytz upgrade) (#48076)
Authored August 14, 2022
Backport PR #48149 on branch 1.4.x (REGR: fix calling numpy bitwise ufunc with Index objects) (#48200)
Authored August 22, 2022
Backport PR #47547 on branch 1.4.x (REGR: NotImplementedError: Prefix not defined when slicing offset with loc) (#48209)
Authored August 23, 2022
Backport PR #48169 on branch 1.4.x (BUG: DataFrame.select_dtypes(include=number) still included BooleanDtype) (#48174)
Authored August 20, 2022
Backport PR #48215 on branch 1.4.x (REGR: properly update DataFrame cache in Series.__setitem__) (#48266)
Authored August 26, 2022
Backport PR #48147 on branch 1.4.x (BUG: ensure object dtype for strftime accessor/index method + REGR: avoid spurious warning) (#48158)
Authored August 19, 2022
Backport PR #47949 on branch 1.4.x (TST: Add test for loc not updating cache correctly) (#47949) (#47954)
Authored August 4, 2022
Backport PR #47946: REGR: fix error caused by deprecation warning in pd.merge when joining two Series (#48154)
Authored August 19, 2022
"Backport PR #47387 on branch 1.4.x (TST,WARN: read_csv raises warning at wrong stacklevel, but _assert_raised_with_correct_stacklevel doesn't fail )" (#47513)
Authored July 2, 2022
Backport PR #47473 on branch 1.4.x (DOC: Start v1.4.4 release notes) (#47486)
Authored June 23, 2022
Backport PR #48314 on branch 1.4.x (DOC: v1.4.4 release date and tidy up release notes) (#48319)
Authored August 30, 2022
Backport PR #48176 on branch 1.4.x (REGR: ensure DataFrame.select_dtypes() returns a copy) (#48219)
Authored August 24, 2022
Backport PR #47774 on branch 1.4.x (BUG: Fix fillna on multi indexed Dataframe doesn't work) (#48216)
Authored August 23, 2022
Backport PR #48058 on branch 1.4.x (REGR: fix reset_index (Index.insert) regression with custom Index subclasses) (#48199)
Authored August 22, 2022
Backport PR #47979 on branch 1.4.x (DEPS: Update cython) (#48009)
Authored August 8, 2022
CI: fix mypy typing errors (pin numpy) on branch 1.4.x (#47967)
Authored August 4, 2022
Backport PR #47951 on branch 1.4.x (DOC: Fix missing s3 file in read xml doc example) (#47957)
Authored August 4, 2022
Backport PR #47792 on branch 1.4.x (DOC: Fix versionadded for callable in on_bad_lines) (#47795)
Authored July 20, 2022
Backport PR #47670 on branch 1.4.x (CI: Fix npdev build post Cython annotation change) (#47709)
Authored July 14, 2022
RLS: 1.4.4
Authored August 31, 2022

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Top Contributors in v1.4.4

meeseeksmachine
phofl
mroeschke
simonjayhawkins
MarcoGorelli
pandas-development-team-79e2

Directory Browser for v1.4.4

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Release Notes Published

This is a patch release in the 1.4.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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