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Prep for Python 3.1!

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Barry Warsaw 2008-12-03 16:46:14 +00:00
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This is Python version 3.0 release candidate 3
==============================================
This is Python version 3.1 alpha 0
==================================
For notes specific to this release, see RELNOTES in this directory.
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Python Software Foundation.
All rights reserved.
Python 3000 (a.k.a. "Py3k", and released as Python 3.0) is a new
version of the language, which is incompatible with the 2.x line of
releases. The language is mostly the same, but many details,
especially how built-in objects like dictionaries and strings work,
have changed considerably, and a lot of deprecated features have
finally been removed.
Python 3.x is a new version of the language, which is incompatible with the
2.x line of releases. The language is mostly the same, but many details,
especially how built-in objects like dictionaries and strings work, have
changed considerably, and a lot of deprecated features have finally been
removed.
This is an ongoing project; the cleanup isn't expected to be complete
until some time in 2008. In particular there are plans to reorganize
@ -21,22 +20,15 @@ the standard library namespace.
Release Schedule
----------------
The release plan is to have a series of alpha releases in 2007 and 2008,
beta releases in 2008, and a final release in October 2008. The alpha
releases are primarily aimed at developers who want a sneak peek at the
new langauge, especially those folks who plan to port their code to
Python 3000. The hope is that by the time of the final release, many
3rd party packages will already be available in a 3.0-compatible form.
See PEP 361 for release details: http://www.python.org/dev/peps/pep-0361/
See PEP XXX for release details: http://www.python.org/dev/peps/pep-XXX/
Documentation
-------------
Documentation for Python 3000 is online, updated twice a day:
Documentation for Python 3.1 is online, updated twice a day:
http://docs.python.org/dev/3.0/
http://docs.python.org/dev/3.1/
All documentation is also available online at the Python web site
(http://docs.python.org/, see below). It is available online for
@ -48,9 +40,9 @@ translators, and people with special formatting requirements.
This is a work in progress; please help improve it!
The design documents for Python 3000 are also online. While the
reference documentation is being updated, the PEPs are often the best
source of information about new features. Start by reading PEP 3000:
The design documents for Python 3 are also online. While the reference
documentation is being updated, the PEPs are often the best source of
information about new features. Start by reading PEP 3000:
http://python.org/dev/peps/pep-3000/
@ -58,15 +50,15 @@ source of information about new features. Start by reading PEP 3000:
What's New
----------
For an overview of what's new in Python 3000, see Guido van Rossum's
blog at artima.com:
For an overview of what's new in Python 3, see Guido van Rossum's blog at
artima.com:
http://www.artima.com/weblogs/index.jsp?blogger=guido
We try to eventually have a comprehensive overview of the changes in
the "What's New in Python 3.0" document, found at
the "What's New in Python 3.1" document, found at
http://docs.python.org/dev/3.0/whatsnew/3.0
http://docs.python.org/dev/3.1/whatsnew/3.1
Please help write it!
@ -88,13 +80,12 @@ current PEPs, as well as guidelines for submitting a new PEP, are listed at
http://www.python.org/dev/peps/.
Converting From Python 2.x to 3.0
Converting From Python 2.x to 3.x
---------------------------------
Python 2.6 (to be released concurrent with Python 3.0) will contain features
to help locating code that needs to be changed, such as optional warnings when
deprecated features are used, and backported versions of certain key Python
3000 features.
Python starting with 2.6 will contain features to help locating code that
needs to be changed, such as optional warnings when deprecated features are
used, and backported versions of certain key Python 3.x features.
Installing multiple versions