New Pythons - 2.7.1 and 3.1.3
Monday, 29 November 2010

The last V2 Python update has been released along with a corresponding update to the incompatible V3.

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Python has a slight problem in that it has a widely used version 2 and a relatively new (2008) non-backwards compatible version 3. Any attempt to move a language forward in a non-backward compatible way is a dangerous time in its development.

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Python 2 has now reached a milestone. The latest version, 2.7.1, is the last major revision of the version 2 line of Python and marks the move to maintenance only. Many of its new features were first released in version 3 so in a sense you can consider it to be a backward compatible extension in version 3's direction. New features include:

  • An ordered dictionary type
  • New unittest features including test skipping, new assert methods, and test discovery
  • A much faster io module
  • Automatic numbering of fields in the str.format() method
  • Float repr improvements backported from 3.x
  • Tile support for Tkinter
  • A backport of the memoryview object from 3.x
  • Set literals
  • Set and dictionary comprehensions
  • Dictionary views
  • New syntax for nested with statements
  • The sysconfig module

Also released at the same time is Python 3.1.3 and it includes some of the same improvements:

  • 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

More information and downloads from: http://www.python.org/

 

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