[RELEASED] Python 3.1.1

Benjamin Peterson benjamin at python.org
Mon Aug 17 04:55:14 CEST 2009

On behalf of the Python development team, I'm happy to announce the first bugfix
release of the Python 3.1 series, Python 3.1.1.

This bug fix release fixes many normal bugs and several critical ones including
potential data corruption in the io library.

Python 3.1 focuses on the stabilization and optimization of the features and
changes that Python 3.0 introduced.  For example, the new I/O system has been
rewritten in C for speed.  File system APIs that use unicode strings now handle
paths with undecodable bytes in them. Other features include an ordered
dictionary implementation, a condensed syntax for nested with statements, and
support for ttk Tile in Tkinter.  For a more extensive list of changes in 3.1,
see http://doc.python.org/3.1/whatsnew/3.1.html or Misc/NEWS in the Python

Please note the Windows and Mac binaries are not available yet but
will be in the coming days.

To download Python 3.1.1 visit:


The 3.1 documentation can be found at:


Bugs can always be reported to:



Benjamin Peterson
Release Manager
benjamin at python.org
(on behalf of the entire python-dev team and 3.1.1's contributors)

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