[Python-Dev] RELEASED Python 3.0 final

Thu Dec 4 02:51:33 CET 2008

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On behalf of the Python development team and the Python community, I 
am happy to announce the release of Python 3.0 final.
Python 3.0 (a.k.a. "Python 3000" or "Py3k") represents a major 
milestone in Python's history, and was nearly three years in the 
making. This is a new version of the language that is incompatible 
with the 2.x line of releases, while remaining true to BDFL Guido van 
Rossum's vision. Some things you will notice include:
* Fixes to many old language warts
* Removal of long deprecated features and redundant syntax
* Improvements in, and a reorganization of, the standard library
* Changes to the details of how built-in objects like strings and 
dicts work
* ...and many more new features
While these changes were made without concern for backward 
compatibility, Python 3.0 still remains very much "Pythonic".
We are confident that Python 3.0 is of the same high quality as our 
previous releases, such as the recently announced Python 2.6. We will 
continue to support and develop both Python 3 and Python 2 for the 
foreseeable future, and you can safely choose either version (or both) 
to use in your projects. Which you choose depends on your own needs 
and the availability of third-party packages that you depend on. Some 
other things to consider:
* Python 3 has a single Unicode string type; there are no more 8-bit 
strings
* The C API has changed considerably in Python 3.0 and third-party 
extension modules you rely on may not yet be ported
* Tools are available in both Python 2.6 and 3.0 to help you migrate 
your code
* Python 2.6 is backward compatible with earlier Python 2.x releases
We encourage you to participate in Python 3.0's development process by 
joining its mailing list:
 http://mail.python.org/mailman/listinfo/python-3000
If you find things in Python 3.0 that are broken or incorrect, please 
submit bug reports at:
 http://bugs.python.org/
For more information, links to documentation, and downloadable 
distributions, see the Python 3.0 website:
 http://www.python.org/download/releases/3.0/
Enjoy,
- -Barry
Barry Warsaw
barry at python.org
Python 2.6/3.0 Release Manager
(on behalf of the entire python-dev team)
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