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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 v1.4.2

Pandas: v1.4.2 Release

Release date:
April 2, 2022
Previous version:
v1.4.1 (released February 12, 2022)
Magnitude:
1,228 Diff Delta
Contributors:
4 total committers
Data confidence:
Commits:
34 impacting commits

34 Commits in this Release

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

Backport PR #45902: Use Mamba in Azure CI (#46159)
Authored February 26, 2022
Backport PR #45949: TST: Check network URL statuses in tests (#45993)
Authored February 15, 2022
Backport PR #46239: DOC+BUG: `Styler.to_excel` pseudo css `number-format` (#46245)
Authored March 6, 2022
Backport PR #45995: CI: Add single_cpu build (#46005)
Authored February 16, 2022
Backport PR #46118: CI: Align MacOS dependencies with other builds (#46158)
Authored February 26, 2022
Backport PR #45983: REGR: drop raising with ea index and duplicates (#46020)
Authored February 16, 2022
Backport PR #46325: Regression in read csv causing segfault for invalid file input (#46333)
Authored March 12, 2022
Backport PR #46404: REGR: DataFrame.replace when the replacement value was explicitly None (#46441)
Authored March 20, 2022
Backport PR #46204: PERF: avoid copies in frame[col].fillna(val, inplace=True) GH#46149 (#46242)
Authored March 6, 2022
Backport PR #46322: Regression in loc.setitem losing mi names when df is empty (#46334)
Authored March 12, 2022
Backport PR #46335: BUG: replace with value also being replaced (#46340)
Authored March 12, 2022
Backport PR #46274: CI/TST: numpy 1.22.3 release fixes (#46290)
Authored March 9, 2022
Backport PR #46548: REGR: tests + whats new: boolean dtype in styler render (#46577)
Authored March 31, 2022
Backport PR #46057: bug: styler latex longtable column count (#46157)
Authored February 26, 2022
Backport PR #45950: CI: Set max job limit for test runs (#45980)
Authored February 15, 2022
Backport PR #46119: REF: isinstance(x, int) -> is_integer(x) (#46501)
Authored March 29, 2022
Backport PR #46542: Reorder YAML (#46550)
Authored March 29, 2022
Manual Backport PR #46143 on branch 1.4.x (CI: Merge datamanager job into posix) (#46165)
Authored February 27, 2022
CI: Test various Pyarrow version on Linux (#46059) (#46097)
Authored February 23, 2022
CI: Debug min build timing out (#45946) (#45974)
Authored February 13, 2022
Backport PR #46515: CI/DOC: pin jinja2 to 3.0.3 (#46517)
Authored March 26, 2022
Backport PR #46054: CI: pin markupsafe to avoid import error (#46062)
Authored February 19, 2022
Backport PR #46457: BUG: url regex in `style_render` does not pass colon and other valid (#46497)
Authored March 25, 2022
Backport PR #45938: DOC: Start v1.4.2 release notes (#45960)
Authored February 13, 2022
Backport PR #46605: DOC: 1.4.2 release date (#46607)
Authored April 1, 2022
Backport PR #46567 on branch 1.4.x (BUG: groupby().rolling(freq) with monotonic dates within groups #46065 ) (#46592)
Authored April 1, 2022
Backport of CI related PRs on 1.4.x (#46559)
Authored March 29, 2022
Backport PR #46461: Update install.rst (#46464)
Authored March 23, 2022
Backport PR #46354: DOC: minor fixes to 1.4.2 release notes (#46380)
Authored March 16, 2022
Backport PR #46018: BUG: remove usage of _constructor._get_axis_number (fix when _constructor properties return callables) (#46228)
Authored March 4, 2022
Backport PR #46055: DOC: Add "build C extensions" note (#46168)
Authored February 27, 2022
Backport PR #46124: DOC: Improve options.rst (#46160)
Authored February 26, 2022
Backport PR #46069: DOC: fix ref in 1.4.2 release notes (#46073)
Authored February 19, 2022
RLS: 1.4.2
Authored April 2, 2022

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Top Contributors in v1.4.2

meeseeksmachine
mroeschke
pandas-development-team-79e2
simonjayhawkins

Directory Browser for v1.4.2

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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.

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