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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 v1.2.0rc0

Pandas: v1.2.0rc0 Release

Release date:

December 8, 2020

Previous version:

v1.2.0.dev0 (released December 7, 2020)

Magnitude:

38,188 Diff Delta

Contributors:

74 total committers

Data confidence:

Commits:

435

435 Commits in this Release

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

REF: move get_filepath_buffer into get_handle (#37639)

Authored November 13, 2020

REF/BUG/TYP: read_csv shouldn't close user-provided file handles (#36997)

Authored November 4, 2020

TYP: Check untyped defs (except vendored) (#37556)

Authored November 9, 2020

CLN: fix flake8 C406, C409, and some of C408 (#38078)

Authored November 26, 2020

TST/REF: share method tests between DataFrame and Series (#37596)

Authored November 3, 2020

ENH: context-manager for chunksize/iterator-reader (#38225)

Authored December 4, 2020

TST/REF: collect indexing tests by method (#37729)

Authored November 10, 2020

Revert "REF: back IntervalArray by a single ndarray (#37047)" (#38024)

Authored November 24, 2020

DOC: re-use storage_options (#37953)

Authored November 19, 2020

CLN: test_ewm_rolling_consistency.py (#37951)

Authored November 19, 2020

REF: share more methods in ExtensionIndex (#37970)

Authored November 20, 2020

BUG: Index.where casting ints to str (#37591)

Authored November 3, 2020

CLN: test_moments_rolling_consistency.py (#37946)

Authored November 18, 2020

BUG: preserve nullable dtype for float result in IntegerArray/BooleanArray arithmetic ops (#38178)

Authored December 1, 2020

TST: share transform tests (#38304)

Authored December 7, 2020

ENH: Implement cross method for Merge Operations (#37864)

Authored November 26, 2020

TST/REF: collect indexing tests by method (#38005)

Authored November 23, 2020

API: consistently raise TypeError for invalid-typed fill_value (#37733)

Authored November 13, 2020

CLN: test_moments_expanding_consistency.py (#37944)

Authored November 18, 2020

REF: implement _wrap_reduction_result (#37660)

Authored November 8, 2020

TST/REF: collect Index.equals tests (#38011)

Authored November 24, 2020

CLN refactor core/arrays (#37581)

Authored November 4, 2020

CLN: More tests/window/* (#37959)

Authored November 19, 2020

TST/REF: collect tests by method (#37589)

Authored November 2, 2020

ENH: memory_map for compressed files (#37621)

Authored November 5, 2020

making namespace usage more consistent (#37852)

Authored November 16, 2020

Move inconsistent namespace check to pre-commit, fixup more files (#37662)

Authored November 8, 2020

TST/REF: tests.generic (#37618)

Authored November 4, 2020

TYP: Add cast to ABC classes. (#37902)

Authored November 24, 2020

API: CategoricalIndex.append fallback to concat_compat (#38098)

Authored November 29, 2020

TST: collect tests by method (#37617)

Authored November 4, 2020

REF/TST: collect indexing tests by method (#37677)

Authored November 8, 2020

TYP: __getitem__ method of EA (#37898)

Authored November 17, 2020

BUG: DataFrame reductions inconsistent with Series counterparts (#37827)

Authored November 14, 2020

BUG: obj.loc[listlike] with missing keys and CategoricalIndex (#37901)

Authored November 17, 2020

BUG: name retention in Index.intersection (#38111)

Authored December 2, 2020

TST/REF: collect Series accessor tests (#37523)

Authored October 31, 2020

ENH: Support all Scipy window types in rolling(..., win_type) (#37204)

Authored October 31, 2020

TYP: copy method of EAs (#37816)

Authored November 14, 2020

REF: share delete, putmask, insert between ndarray-backed EA indexes (#37529)

Authored October 31, 2020

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Top Contributors in v1.2.0rc0

jbrockmendel

twoertwein

phofl

mroeschke

simonjayhawkins

jorisvandenbossche

MarcoGorelli

fangchenli

rhshadrach

christopherhadley

Directory Browser for v1.2.0rc0

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Release Notes Published

This is the first release candidate for 1.2.0rc0. If all goes well, we'll release pandas 1.2.0 in about two weeks.

See the whatsnew for a list of all the changes.

The release can be installed from PyPI

python -m pip install --upgrade --pre pandas==1.2.0rc0

Or from conda-forge

conda install -c conda-forge/label/pandas_rc pandas==1.2.0rc0

Please report any issues with the release candidate on the pandas issue tracker.