This is Python version 3.0.1============================For notes specific to this release, see RELNOTES in this directory.Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009Python Software Foundation.All rights reserved.Python 3 (a.k.a. "Python 3000" or "Py3k", and released as Python 3.0) is a newversion 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-inobjects like dictionaries and strings work, have changed considerably, and alot of deprecated features have finally been removed.Documentation-------------Documentation for Python 3.0 is online, updated twice a day:http://docs.python.org/dev/3.0/All documentation is also available online at the Python web site(http://docs.python.org/, see below).  It is available online for occasionalreference, and it can be downloaded in many formats for faster local access.The documentation is downloadable in HTML, PostScript, PDF, LaTeX (through2.5), and reStructuredText (2.6, 3.0, and going forward) formats; the LaTeXand reStructuredText versions are primarily for documentation authors,translators, and people with special formatting requirements.This is a work in progress; please help improve it!The design documents for Python 3 are also online.  While the referencedocumentation is being updated, the PEPs are often the best source ofinformation about new features.  Start by reading PEP 3000:http://python.org/dev/peps/pep-3000/What's New----------For an overview of what's new in Python 3.0, see Guido van Rossum's blog atartima.com:http://www.artima.com/weblogs/index.jsp?blogger=guidoWe try to eventually have a comprehensive overview of the changes in the"What's New in Python 3.0" document, found athttp://docs.python.org/dev/3.0/whatsnew/3.0Please help improve it!For a more detailed change log, read Misc/NEWS, though this file, too, isincomplete, and also doesn't list anything merged in from the 2.6 release.If you want to install multiple versions of Python see the section belowentitled "Installing multiple versions".Proposals for enhancement-------------------------If you have a proposal to change Python, you may want to send an email to thecomp.lang.python or python-ideas mailing lists for initial feedback.  A PythonEnhancement Proposal (PEP) may be submitted if your idea gains ground.  Allcurrent PEPs, as well as guidelines for submitting a new PEP, are listed athttp://www.python.org/dev/peps/.Converting From Python 2.x to 3.0---------------------------------Python 2.6 contains features to help locating and updating code that needs tobe changed when migrating to Python 3.A source-to-source translation tool, "2to3", can take care of themundane task of converting large amounts of source code.  It is not acomplete solution but is complemented by the deprecation warnings in2.6.  This tool is currently available via the Subversion sandbox:http://svn.python.org/view/sandbox/trunk/2to3/Installing multiple versions----------------------------On Unix and Mac systems if you intend to install multiple versions of Pythonusing the same installation prefix (--prefix argument to the configure script)you must take care that your primary python executable is not overwritten bythe installation of a different version.  All files and directories installedusing "make altinstall" contain the major and minor version and can thus liveside-by-side.  "make install" also creates ${prefix}/bin/python which refersto ${prefix}/bin/pythonX.Y.  If you intend to install multiple versions usingthe same prefix you must decide which version (if any) is your "primary"version.  Install that version using "make install".  Install all otherversions using "make altinstall".For example, if you want to install Python 2.5, 2.6 and 3.0 with 2.6 being theprimary version, you would execute "make install" in your 2.6 build directoryand "make altinstall" in the others.Issue Tracker and Mailing List------------------------------We're soliciting bug reports about all aspects of the language.  Fixes arealso welcome, preferable in unified diff format.  Please use the issuetracker:http://bugs.python.org/If you're not sure whether you're dealing with a bug or a feature, use themailing list:    python-dev@python.orgTo subscribe to the list, use the Mailman form:http://mail.python.org/mailman/listinfo/python-dev/Build Instructions------------------On Unix, Linux, BSD, OSX, and Cygwin:    ./configure    make    make test    sudo make install    # or "make altinstall"You can pass many options to the configure script; run "./configure--help" to find out more.  On OSX and Cygwin, the executable is calledpython.exe; elsewhere it's just python.On Mac OS X, if you have configured Python with --enable-framework,you should use "make frameworkinstall" to do the installation.  Notethat this installs the Python executable in a place that is notnormally on your PATH, you may want to set up a symlink in/usr/local/bin.On Windows, see PCbuild/readme.txt.If you wish, you can create a subdirectory and invoke configure fromthere.  For example:    mkdir debug    cd debug    ../configure --with-pydebug    make    make test(This will fail if you *also* built at the top-level directory.  Youshould do a "make clean" at the toplevel first.)Copyright and License Information---------------------------------Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009Python Software Foundation.All rights reserved.Copyright (c) 2000 BeOpen.com.All rights reserved.Copyright (c) 1995-2001 Corporation for National Research Initiatives.All rights reserved.Copyright (c) 1991-1995 Stichting Mathematisch Centrum.All rights reserved.See the file "LICENSE" for information on the history of thissoftware, terms & conditions for usage, and a DISCLAIMER OF ALLWARRANTIES.This Python distribution contains *no* GNU General Public License(GPL) code, so it may be used in proprietary projects.  There areinterfaces to some GNU code but these are entirely optional.All trademarks referenced herein are property of their respectiveholders.