ANN: pandas v0.20.1 released

[Tom Augspurger]

Hi all,

I'm happy to announce that pandas 0.20.0 and 0.20.1 have been released.

Pandas 0.20.1 contains a single additional change from 0.20.0 for backwards compatibility with projects using pandas' utils methods. See https://github.com/pandas-dev/pandas/pull/16250. The full release notes for 0.20.0 are below.

This is a major release from 0.19.2 and includes a number of API changes, several new features, enhancements, and performance improvements along with a large number of bug fixes. See the Whatsnew file for more information: http://pandas.pydata.org/pandas-docs/version/0.20/whatsnew.html

We recommend that all users upgrade to this version.

This release includes 897 commits over 5 months of development by 204 contributors. A big thank you to all contributors!

Tom

---

## What is it:

pandas is a Python package providing fast, flexible, and expressive data structures designed to make working with “relational” or “labeled” data both easy and intuitive. It aims to be the fundamental high-level building block for doing practical, real world data analysis in Python. Additionally, it has the broader goal of becoming the most powerful and flexible open source data analysis / manipulation tool available in any language.

## Highlights of the 0.20.0 release include:

• new .agg() API for Series/DataFrame similar to the groupby-rolling-resample API's, see here
• Integration with the feather-format, including a new top-level pd.read_feather() and DataFrame.to_feather() method, see here
• The .ix indexer has been deprecated, see here
• Panel has been deprecated, see here
• Addition of an IntervalIndex and Interval scalar type, see here
• Improved user API when accessing levels in .groupby(), see here
• Improved support for UInt64 dtypes, see here
• A new orient for JSON serialization, orient='table', that uses the Table Schema spec, see here
• Experimental support for exporting DataFrame.style formats to Excel, see here
• Window Binary Corr/Cov operations now return a MultiIndexed DataFrame rather than a Panel, as Panel is now deprecated, see here
• Support for S3 handling now uses s3fs, see here
• Google BigQuery support now uses the pandas-gbq library, see here
• Switched the test framework to use pytest

## How to get it:

Source tarballs and Windows / Mac / Linux wheels are available on PyPI (thanks to Christoph Gohlke for the windows wheels, and to Matthew Brett for setting up the Mac / Linux wheels)

    pip install --upgrade pip setuptools

    pip install --upgrade --upgrade-strategy=only-if-needed pandas

Conda packages currently building, and will be available via the conda-forge channel (conda install pandas -c conda-forge). It will be available on the default channel soon.

    conda install -c conda-forge pandas

## Issues:

Please report any issues on our issue tracker: https://github.com/pydata/pandas/issues/

## Thanks to all the contributors:

- Adam J. Stewart

- Adrian

- Ajay Saxena

- Akash Tandon

- Albert Villanova del Moral

- Aleksey Bilogur

- Alexis Mignon

- Amol Kahat

- Andreas Winkler

- Andrew Kittredge

- Anthonios Partheniou

- Arco Bast

- Ashish Singal

- Baurzhan Muftakhidinov

- Ben Kandel

- Ben Thayer

- Ben Welsh

- Bill Chambers

- Brandon M. Burroughs

- Brian

- Brian McFee

- Carlos Souza

- Chris

- Chris Ham

- Chris Warth

- Christoph Gohlke

- Christoph Paulik

- Christopher C. Aycock

- Clemens Brunner

- D.S. McNeil

- DaanVanHauwermeiren

- Daniel Himmelstein

- Dave Willmer

- David Cook

- David Gwynne

- David Hoffman

- David Krych

- Diego Fernandez

- Dimitris Spathis

- Dmitry L

- Dody Suria Wijaya

- Dominik Stanczak

- Dr-Irv

- Dr. Irv

- Elliott Sales de Andrade

- Ennemoser Christoph

- Francesc Alted

- Fumito Hamamura

- Giacomo Ferroni

- Graham R. Jeffries

- Greg Williams

- Guilherme Beltramini

- Guilherme Samora

- Hao Wu

- Harshit Patni

- Ilya V. Schurov

- Iván Vallés Pérez

- Jackie Leng

- Jaehoon Hwang

- James Draper

- James Goppert

- James McBride

- James Santucci

- Jan Schulz

- Jeff Carey

- Jeff Reback

- JennaVergeynst

- Jim

- Jim Crist

- Joe Jevnik

- Joel Nothman

- John

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- Jon M. Mease

- Jon Mease

- Jonathan Whitmore

- Jonathan de Bruin

- Joost Kranendonk

- Joris Van den Bossche

- Joshua Bradt

- Julian Santander

- Julien Marrec

- Jun Kim

- Justin Solinsky

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