[SciPy-User] ANN: pandas 0.9.1 released

Wes McKinney wesmckinn@gmail....
Wed Nov 14 21:33:25 CST 2012

hi all,

I'm pleased to announce the 0.9.1 release of pandas. This is
primarily a bugfix release but contains a number of new features
and enhancements. There are also a few minor API changes having
to do with time series using the Period data type. I strongly
recommend that all users upgrade to this release.

Note that I plan to make a 0.9.2 release shortly within the next
few weeks (hopefully!) that includes the new file parser
branch (http://wesmckinney.com/blog/?p=543). This includes vastly
improved performance and memory usage, per-column user data type
specification (in addition to the default type inference), column
subsetting by name (for those "really wide" CSV files), improved
support for European decimal formats, and many other goodies. I'm
hopeful someone will help port this code to go in a near-future
version of NumPy.

As always source archives and Windows installers can be found on
PyPI. Thanks to all who contributed to this release, especially
Yoval P, Chang She, Jeff Reback, and everyone listed below. A
special thanks also goes out to all those who answer questions on
StackOverflow and the mailing lists, helping to make the pandas
community vibrant and helpful.

What's new: http://pandas.pydata.org/pandas-docs/stable/whatsnew.html

$ git log v0.9.0..v0.9.1 --pretty=format:%aN | sort | uniq -c | sort -rn
     90 Wes McKinney
     66 y-p
     57 Chang She
      7 Jeff Reback
      6 Tobias Brandt
      4 Wouter Overmeire
      4 Brenda Moon
      2 timmie
      1 Martin Blais
      1 K.-Michael Aye
      1 Justin C Johnson

Happy data hacking!

- Wes

What is it
pandas is a Python package providing fast, flexible, and
expressive data structures designed to make working with
relational, time series, or any other kind of labeled data both
easy and intuitive. It aims to be the fundamental high-level
building block for doing practical, real world data analysis in

Release Notes: http://github.com/pydata/pandas/blob/master/RELEASE.rst
Documentation: http://pandas.pydata.org
Installers: http://pypi.python.org/pypi/pandas
Code Repository: http://github.com/pydata/pandas
Mailing List: http://groups.google.com/group/pydata

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