RELEASED Python 2.5.1, FINAL

Anthony Baxter anthony at
Thu Apr 19 10:45:59 CEST 2007

On behalf of the Python development team and the Python
community, I'm happy to announce the release of Python 2.5.1

This is the first bugfix release of Python 2.5. Python 2.5
is now in bugfix-only mode; no new features are being added.
According to the release notes, over 150 bugs and patches
have been addressed since Python 2.5, including a fair
number in the new AST compiler (an internal implementation
detail of the Python interpreter).

This is a production release of Python, and should be a
painless upgrade from 2.5. Since the release candidate, we
have backed out a couple of small changes that caused 2.5.1
to behave differently to 2.5. See the release notes for

For more information on Python 2.5.1, including download
links for various platforms, release notes, and known
issues, please see:

Highlights of this new release include:

  Bug fixes. According to the release notes, at least 150
  have been fixed.

Highlights of the previous major Python release (2.5) are
available from the Python 2.5 page, at

Enjoy this release,

Anthony Baxter
anthony at
Python Release Manager
(on behalf of the entire python-dev team)
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