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Mark Dickinson c0b6cc8af1 Blocked revisions 62684 via svnmerge
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  r62684 | mark.dickinson | 2008-05-03 22:05:06 -0400 (Sat, 03 May 2008) | 9 lines

  Some very minor changes to decimal.py in Python 2.6, aimed
  at reducing the size of the diff between the 2.x decimal.py
  and 3.x decimal.py and thereby making future merges easier:

  - replace one instnace of an old-style raise statement
  - define __div__ in terms of __truediv__ instead of the
    other way around
  - make wording match on an exception message
........
2008-05-04 02:07:53 +00:00
Demo Merged revisions 62021,62029,62035-62038,62043-62044,62052-62053 via svnmerge from 2008-03-31 01:51:45 +00:00
Doc Merge OpenSearch-related changes. 2008-05-03 20:52:18 +00:00
Grammar Issue #1066: implement PEP 3109, 2/3 of PEP 3134. 2007-08-31 00:04:24 +00:00
Include Cleanup the Unicode header documentation and formatting a bit. 2008-04-29 11:14:08 +00:00
Lib Revert changes in 62669, since they caused test failures. 2008-05-04 00:00:19 +00:00
Mac Merged revisions 62021,62029,62035-62038,62043-62044,62052-62053 via svnmerge from 2008-03-31 01:51:45 +00:00
Misc Merged revisions 60056-60071,60073-60127,60129-60261,60263-60284,60286-62589,62591-62594 via svnmerge from 2008-04-30 17:11:46 +00:00
Modules Issue #1950: Fixed misusage of PyUnicode_AsString(). 2008-05-03 18:24:43 +00:00
Objects Issue #1950: Fixed misusage of PyUnicode_AsString(). 2008-05-03 18:24:43 +00:00
PC Merged revisions 62380,62382-62383 via svnmerge from 2008-04-19 00:31:39 +00:00
PCbuild Merged revisions 62380,62382-62383 via svnmerge from 2008-04-19 00:31:39 +00:00
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Python Issue #1950: Fixed misusage of PyUnicode_AsString(). 2008-05-03 18:24:43 +00:00
Tools Merged revisions 62246-62259 via svnmerge from 2008-04-10 03:06:53 +00:00
.bzrignore Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62128,62130,62132,62134-62135,62137,62139-62140,62144,62146,62151,62155,62157,62162-62166,62171-62172,62175-62176,62178,62181-62186,62188-62192,62196,62200-62203,62206,62211-62213,62215-62218,62222,62224-62226,62228,62232,62236,62240-62245,62248,62250-62254,62256-62258,62262,62264-62265,62267-62270,62272-62276,62280-62288,62291-62292,62299-62301,62307,62312,62316-62318,62322-62331,62333-62337,62339-62344,62346-62348 via svnmerge from 2008-04-15 06:43:13 +00:00
.hgtags Tagging 3.0a4. 2008-04-02 23:47:54 +00:00
INTBENCH Merged the int/long unification branch, by very crude means (sorry Thomas!). 2007-01-14 03:31:43 +00:00
LICENSE Copyright and version tweaks for 3.0a3. 2008-03-01 17:45:23 +00:00
Makefile.pre.in Merged revisions 62380,62382-62383 via svnmerge from 2008-04-19 00:31:39 +00:00
README release.py induced and manual editing steps for 3.0a4. 2008-04-02 23:33:27 +00:00
RELNOTES Updated release notes (to match what's on python.org/download/releases/3.0/). 2007-12-10 19:25:42 +00:00
configure Remove temporary autoconf checks added in revision 62592 2008-05-01 21:27:05 +00:00
configure.in Remove temporary autoconf checks added in revision 62592 2008-05-01 21:27:05 +00:00
install-sh Patch #746366: Update to current automake install-sh. Will backport to 2.2. 2003-06-14 06:58:32 +00:00
pyconfig.h.in Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from 2008-03-28 10:53:29 +00:00
runtests.sh Use bash, so echo -n will do the right thing. 2008-01-12 19:47:54 +00:00
setup.py Merged revisions 62179 via svnmerge from 2008-04-07 00:25:59 +00:00

README

This is Python version 3.0 alpha 4
==================================

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.

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
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 August 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/


Documentation
-------------

Documentation for Python 3000 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
occasional reference, or can be downloaded in many formats for faster
access.  The documentation is downloadable in HTML, PostScript, PDF,
LaTeX (through 2.5), and reStructuredText (2.6+) formats; the LaTeX and
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 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:

    http://python.org/dev/peps/pep-3000/


What's New
----------

For an overview of what's new in Python 3000, 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

    http://docs.python.org/dev/3.0/whatsnew/3.0

Please help write it!

If you want to install multiple versions of Python see the section below
entitled "Installing multiple versions".


What's New Since 3.0a1
----------------------

Undoubtedly the biggest change is in the bytes type: 'bytes' is now
immutable, and there is a new mutable bytes type 'bytearray'.  These
two types are interoperable in every way.  For more info on this
issue, read PEP 3137.

For a more detailed change log, read Misc/NEWS (though this file, too,
is incomplete, and also doesn't list anything merged in from the 2.6
release under development).

Proposals for enhancement
-------------------------

If you have a proposal to change Python, you may want to send an email to the
comp.lang.python or python-ideas mailing lists for inital feedback. A Python
Enhancement Proposal (PEP) may be submitted if your idea gains ground. All
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
---------------------------------

Python 2.6 (not yet released) 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.


Installing multiple versions
----------------------------

On Unix and Mac systems if you intend to install multiple versions of Python
using the same installation prefix (--prefix argument to the configure
script) you must take care that your primary python executable is not
overwritten by the installation of a different versio.  All files and
directories installed using "make altinstall" contain the major and minor
version and can thus live side-by-side.  "make install" also creates
${prefix}/bin/python which refers to ${prefix}/bin/pythonX.Y.  If you intend
to install multiple versions using the same prefix you must decide which
version (if any) is your "primary" version.  Install that version using
"make install".  Install all other versions using "make altinstall".

For example, if you want to install Python 2.5, 2.6 and 3.0 with 2.6 being
the primary version, you would execute "make install" in your 2.6 build
directory and "make altinstall" in the others.


Configuration options and variables
-----------------------------------

A source-to-source translation tool, "2to3", can take care of the
mundane task of converting large amounts of source code.  It is not a
complete solution but is complemented by the deprecation warnings in
2.6.  This tool is currently available via the Subversion sandbox:

    http://svn.python.org/view/sandbox/trunk/2to3/


Issue Tracker and Mailing List
------------------------------

We're soliciting bug reports about all aspects of the language.  Fixes
are also welcome, preferable in unified diff format.  Please use the
issue tracker:

    http://bugs.python.org/

If you're not sure whether you're dealing with a bug or a feature, use
the mailing list:

    python-3000@python.org

To subscribe to the list, use the mailman form:

    http://mail.python.org/mailman/listinfo/python-3000/


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 called
python.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.  Note
that this installs the Python executable in a place that is not
normally 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 from
there.  For example:

    mkdir debug
    cd debug
    ../configure --with-pydebug
    make
    make test

(This will fail if you *also* built at the top-level directory.  You
should do a "make clean" at the toplevel first.)


Copyright and License Information
---------------------------------

Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Python 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 this
software, terms & conditions for usage, and a DISCLAIMER OF ALL
WARRANTIES.

This Python distribution contains *no* GNU General Public License
(GPL) code, so it may be used in proprietary projects.  There are
interfaces to some GNU code but these are entirely optional.

All trademarks referenced herein are property of their respective
holders.