Python 3.1

Python 3.1 has been superseded by 3.1.1. You can download 3.1.1.

Python 3.1 final was released on June 27th, 2009.

Python 3.1 is a continuation of the work started by Python 3.0, the new backwards-incompatible series of Python. Improvements in this release include:

An ordered dictionary type

Various optimizations to the int type

New unittest features including test skipping and new assert methods.

A much faster io module

Tile support for Tkinter

A pure Python reference implementation of the import statement

New syntax for nested with statements

See these resources for further information: