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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 v1.1.1

Pandas: v1.1.1 Release

Release date:
August 20, 2020
Previous version:
v1.1.0 (released July 28, 2020)
Magnitude:
1,982 Diff Delta
Contributors:
3 total committers
Data confidence:
Commits:
39 impacting commits

39 Commits in this Release

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

Backport PR #35470: CI: unpin isort 5 (#35134) (#35501)
Authored August 1, 2020
Backport PR #35519: REF: StringArray._from_sequence, use less memory (#35770)
Authored August 17, 2020
Backport PR #35440: BUG: CategoricalIndex.format (#35539)
Authored August 4, 2020
Backport PR #35272: CI: Unpin pytest (#35469)
Authored July 30, 2020
Backport PR #35723: agg with list of non-aggregating functions (#35738)
Authored August 15, 2020
Backport PR #35697: REGR: Don't ignore compiled patterns in replace (#35765)
Authored August 17, 2020
Backport PR #35750: Pass check_dtype to assert_extension_array_equal (#35773)
Authored August 17, 2020
Backport PR #35647: BUG: Support custom BaseIndexers in groupby.rolling (#35699)
Authored August 13, 2020
Backport PR #35473: REGR: Fix conversion of mixed dtype DataFrame to numpy str (#35617)
Authored August 8, 2020
Backport PR #35639: BUG: RollingGroupby with closed and column selection no longer raises ValueError (#35651)
Authored August 10, 2020
Backport PR #35590: BUG: validate index/data length match in DataFrame construction (#35597)
Authored August 7, 2020
Backport PR #35578: BUG: df.shift(n, axis=1) with multiple blocks (#35601)
Authored August 7, 2020
Backport PR #35502: CI: xfail numpy-dev (#35537)
Authored August 4, 2020
Backport PR #35522: BUG: Fix assert_equal when check_exact=True for non-numeric dtypes #3… (#35652)
Authored August 10, 2020
Backport PR #35582: BUG: to_timedelta fails on Int64 Series with null values (#35602)
Authored August 7, 2020
Backport PR #35543: REGR: Fix interpolation on empty dataframe (#35764)
Authored August 17, 2020
Backport PR #35513: BUG: RollingGroupby respects __getitem__ (#35591)
Authored August 6, 2020
Backport PR #35562: BUG: Ensure rolling groupby doesn't segfault with center=True (#35610)
Authored August 7, 2020
Backport PR #35707: REGR: fix DataFrame.diff with read-only data (#35721)
Authored August 14, 2020
Backport PR #35547: Bug fix one element series truncate (#35600)
Authored August 7, 2020
Backport PR #35588: BUG: fix styler cell_ids arg so that blank style is ignored on False (#35619)
Authored August 8, 2020
Backport PR #35633: BUG: DataFrame.apply with func altering row in-place (#35666)
Authored August 11, 2020
Backport PR #35673: REGR: Dataframe.reset_index() on empty DataFrame with MI and datatime level (#35716)
Authored August 14, 2020
Backport PR #35510: REGR: Check for float in isnaobj_old (#35540)
Authored August 4, 2020
Backport PR #35664: BUG: Styler cell_ids fails on multiple renders (#35722)
Authored August 14, 2020
Backport PR #35654: BUG: GH-35558 merge_asof tolerance error (#35702)
Authored August 13, 2020
CI: test_chunks_have_consistent_numerical_type periodically fails on 1.1.x (#35808)
Authored August 20, 2020
Backport PR #35754: CI: Min Pytest Cov Version/Restrict xdist version (#35761)
Authored August 17, 2020
Backport PR #35774: REGR: follow-up to return copy with df.interpolate on empty DataFrame (#35789)
Authored August 18, 2020
Backport PR #35467: CI: activate github actions on 1.1.x (PR only) (#35535)
Authored August 4, 2020
Backport PR #35468: CI: activate azure pipelines on 1.1.x (#35536)
Authored August 4, 2020
Backport PR #35776: Changed 'int' type to 'integer' in to_numeric docstring (#35806)
Authored August 19, 2020
Backport PR #35477: MAINT: Use float arange when required or intended (#35500)
Authored August 1, 2020
Backport PR #35621: CI: Linux py36_locale failures with pytest DeprecationWarning (#35623)
Authored August 8, 2020
Backport PR #35801: DOC: another pass of v1.1.1 release notes (#35822)
Authored August 20, 2020
Backport PR #35787: DOC: clean v1.1.1 release notes (#35800)
Authored August 19, 2020
Backport PR #35554: DOC: Document that read_hdf can use pickle (#35593)
Authored August 6, 2020
Backport PR #35809: CI: more xfail failing 32-bit tests (#35821)
Authored August 20, 2020
RLS: 1.1.1
Authored August 20, 2020

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Top Contributors in v1.1.1

meeseeksmachine
simonjayhawkins
pandas-development-team-79e2

Directory Browser for v1.1.1

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Release Notes Published

This is a minor bug-fix release in the 1.1.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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