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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 v1.3.1

Pandas: v1.3.1 Release

Release date:
July 25, 2021
Previous version:
v1.3.0 (released July 2, 2021)
Magnitude:
1,216 Diff Delta
Contributors:
6 total committers
Data confidence:
Commits:
40 impacting commits

40 Commits in this Release

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

Backport PR #42622: BUG: `Styler.set_sticky` not handling display of `index names`. 1/2 (#42695)
Authored July 24, 2021
Backport PR #42524: CI: Xfail less on Python 3.10 (#42525)
Authored July 14, 2021
Backport PR #42464: BUG: `to_xml` with `index=False` and offset input index (#42513)
Authored July 13, 2021
Backport PR #42338: PERF/REGR: revert #41785 (#42444)
Authored July 8, 2021
Backport PR #42394: REGR: unpickling in 1.3.0 DataFrame created in 1.2.x #42345 (#42416)
Authored July 6, 2021
Backport PR #42469: REGR: indexing with list subclass (#42489)
Authored July 12, 2021
Backport PR #42579: BUG: DataFrame.copy not consolidating (#42679)
Authored July 23, 2021
Backport PR #42449: REGR: DataFrame.agg with axis=1, EA dtype, and duplicate index (#42460)
Authored July 9, 2021
Backport PR #42473: REGR: isin with nullable types with missing values raising (#42543)
Authored July 15, 2021
Backport PR #42640: BUG: Fix bug in SeriesGroupBy.value_counts when DataFrame has one row (#42618) (#42696)
Authored July 24, 2021
Backport PR #42692: Regression in merge_asof raising KeyError when at least one by columnis in index (#42694)
Authored July 24, 2021
Backport PR #42541: REGR: concat(ints, bools) casting to object #42092 (#42548)
Authored July 15, 2021
Backport PR #42486: REGR: to_dict(orient={"records", "split", "dict"}) slowdown (#42502)
Authored July 12, 2021
Backport PR #42487: CI: add back xfail for flaky chunksize test (#42491)
Authored July 12, 2021
Backport PR #42411: CI: Don't test on 1.2.x (#42412)
Authored July 6, 2021
Backport PR #42633: Fixed regression for SettingWithCopyWarning showing incorrect stacklevel (#42678)
Authored July 23, 2021
Backport PR #42576: BUG: concat bool+int with ArrayManager (#42610)
Authored July 19, 2021
Backport PR #42577: BUG: Series(dask.array) GH#38645 (#42623)
Authored July 20, 2021
Backport PR #42614: CI/TYP: remove unneeded stata ignore (#42616)
Authored July 19, 2021
Backport PR #42583: CI: auto-cancel Azure builds in PR (#42641)
Authored July 21, 2021
Backport PR #42413: CI: runtime warning in npdev build (#42415)
Authored July 6, 2021
Backport PR #42538: CI: Run some checks on push on 1.3.x (#42551)
Authored July 15, 2021
Backport PR #42612: Pin fastparquet (#42632)
Authored July 20, 2021
Backport PR #42419: CI: update vm image version for Azure (#42432)
Authored July 7, 2021
Backport PR #42527: CI: Test Python dev on 1.3.x PRs (#42531)
Authored July 14, 2021
Backport PR #42439: DOC: Refactor Numba enhancing performance and add parallelism caveat (#42490)
Authored July 12, 2021
Backport PR #42342: DOC: fix docs after deprecation of args (#42363)
Authored July 4, 2021
Backport PR #42571: CI: Fixed a typo in Web and Docs (#42578)
Authored July 17, 2021
Backport PR #42360: BUG: fixes PyPy build (do not use _PyHASH_Imag) (#42373)
Authored July 5, 2021
Backport PR #42417: DOC: GH42409 Fix mistake in code example of Styler.to_latex documentation (#42418)
Authored July 7, 2021
Backport PR #42312: DOC: Start v1.3.1 release notes (#42348)
Authored July 2, 2021
Backport PR #42686: DOC: 1.3.1 release date (#42699)
Authored July 24, 2021
Backport PR #42648: DOC: Boolean Array Is Experimental (#42676)
Authored July 23, 2021
Backport PR #42261 (BUG: Fix to_datetime() cache behaviour to not omit duplicated output values) (#42660)
Authored July 22, 2021
Backport PR #42558: CI: Remove xfail for xpassing test (#42563)
Authored July 16, 2021
Backport PR #42554: Modified ecosystem.rst to include ibis (#42564)
Authored July 16, 2021
Backport PR #42475: PERF/REGR: astype changing order of some 2d data (#42526)
Authored July 14, 2021
Backport PR #42516: DOC: fixes for 1.3.1 release notes (#42517)
Authored July 13, 2021
Backport PR #42386: DOC fix the incorrect doc style in 1.2.1 (#42445)
Authored July 8, 2021
RLS: 1.3.1
Authored July 25, 2021

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Top Contributors in v1.3.1

meeseeksmachine
mzeitlin11
lithomas1
phofl
pandas-development-team-79e2
simonjayhawkins

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Release Notes Published

This is the first patch release in the 1.3.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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