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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 v1.4.1

Pandas: v1.4.1 Release

Release date:
February 12, 2022
Previous version:
v1.4.0 (released January 22, 2022)
Magnitude:
1,898 Diff Delta
Contributors:
5 total committers
Data confidence:
Commits:
59 impacting commits

59 Commits in this Release

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

Backport PR #45627: CLN: Use pytest -r to show skipped tests instead of print_skipped.py (#45645)
Authored January 26, 2022
Backport PR #45655: BUG: Fix window aggregations to skip over unused elements (GH-45647) (#45683)
Authored January 28, 2022
Backport PR #45868: CI: Always run clipboard tests on GHA Linux (#45887)
Authored February 9, 2022
Backport PR #45612: DOC: Improve reshaping.rst (#45669)
Authored January 28, 2022
Backport PR #45856: CI: Align GHA and Windows Azure dependencies (#45861)
Authored February 7, 2022
Backport PR #45706: BUG: Frame.iat item_cache invalidation bug (#45744)
Authored February 1, 2022
Backport PR #45812: TST: Create is_ci_environment helper (#45823)
Authored February 4, 2022
Backport PR #45641: Switch deps to Conda (#45851)
Authored February 7, 2022
Backport PR #45668: BUG: unnecessary FutureWarning in sort_values (#45727)
Authored January 31, 2022
Backport PR #45808: bug: fix pd.NA in highlighters (#45828)
Authored February 4, 2022
Backport PR #45723: TST: Allow tm.network to catch urllib.error.URLError (#45726)
Authored January 31, 2022
Backport PR #45703: CI: Align downstream build packages with other builds (#45714)
Authored January 30, 2022
Backport PR #45910: TST/CI: Set hypothesis deadline to None to avoid flaky failures (#45919)
Authored February 11, 2022
Backport PR #45702: TST: Disable testing that hangs Azure CI (#45718)
Authored January 30, 2022
Backport PR #45558: BUG: Segfault in to_json with tzaware datetime (#45584)
Authored January 24, 2022
Backport PR #45707: TST/CI: Fix numexpr test failing in downstream build (#45710)
Authored January 30, 2022
Backport PR #45667: TST: Dynamically use doctest_namespace only if running the doctest (#45685)
Authored January 29, 2022
Backport PR #45437: CI: Don't split slow vs non slow jobs for GHA posix (#45620)
Authored January 25, 2022
Backport PR #45662: BUG: Fix joining overlapping IntervalIndex objects (GH-45661) (#45682)
Authored January 28, 2022
Backport PR #45732: TST: Ensure tm.network has pytest.mark.network (#45741)
Authored January 31, 2022
Backport PR #45731: TST: Add @td.skip_if_no_scipy to failing test (#45739)
Authored January 31, 2022
Backport PR #45623: REGR: loc.setitem losing index name when df was empty before (#45650)
Authored January 27, 2022
Backport PR #45925: BUG: rolling(axis=1).apply() raising ValueError (#45939)
Authored February 11, 2022
Backport PR #45546: REGR: changed behavior in series[period].mask(foo, bar, inplace=True) (#45560)
Authored January 23, 2022
Backport PR #45646: Revert "PERF: nancorr pearson (#42761)" (#45649)
Authored January 27, 2022
Backport PR #45642: REGR: Series.fillna(downcast=False) (#45666)
Authored January 28, 2022
Backport PR #45909: BUG: DateOffset(n) not defaulting to days (#45918)
Authored February 11, 2022
Backport PR #45920: DOC: fix URLs, formatting and typos (#45930)
Authored February 11, 2022
Backport PR #45786: TST: Skip flaky, crashing test in Windows (#45805)
Authored February 4, 2022
Backport PR #45565: REGR: check_flags not respected in assert_frame_equal (#45671)
Authored January 28, 2022
Backport PR #45616: BUG: is_bool_dtype raises AttributeError when checking categorical Series (#45738)
Authored January 31, 2022
Backport PR #45507: CI: Troubleshoot (#45559)
Authored January 22, 2022
Backport PR #45555: WEB: update web/pandas/versions.json for docs dropdown menu (#45556)
Authored January 22, 2022
Backport PR #45628: CI/TST: Call join on server process test (#45631)
Authored January 26, 2022
Backport PR #45576: CI: Use xsel instead of xclip for numpydev (#45604)
Authored January 25, 2022
Backport PR #45771: TST: Skip pyarrow hanging in MacOS CI (#45781)
Authored February 3, 2022
Backport PR #45886: CI: Debug ASV timeout (#45891)
Authored February 9, 2022
Backport PR #45597: CI: Fix failing CI for test_alignment_deprecation_many_inputs (#45600)
Authored January 24, 2022
Backport PR #45503: BLD: Fix pydata-sphix-theme version GH45374 (#45563)
Authored January 23, 2022
Backport PR #45872: CI/TST: add is_ci_environment to test_close_file_handle_on_invalid_usecols skip (#45879)
Authored February 8, 2022

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Top Contributors in v1.4.1

meeseeksmachine
mroeschke
jbrockmendel
pandas-development-team-79e2
simonjayhawkins

Directory Browser for v1.4.1

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Release Notes Published

This is the first patch release in the 1.4.x series and includes some regression fixes 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.

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