cpython/README
Christian Heimes dd15f6c315 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r61239 | andrew.kuchling | 2008-03-05 01:44:41 +0100 (Wed, 05 Mar 2008) | 1 line

  Add more items; add fragmentary notes
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  r61240 | amaury.forgeotdarc | 2008-03-05 02:50:33 +0100 (Wed, 05 Mar 2008) | 13 lines

  Issue#2238: some syntax errors from *args or **kwargs expressions
  would give bogus error messages, because of untested exceptions::

      >>> f(**g(1=2))
      XXX undetected error
      Traceback (most recent call last):
        File "<stdin>", line 1, in <module>
      TypeError: 'int' object is not iterable

  instead of the expected SyntaxError: keyword can't be an expression

  Will backport.
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  r61241 | neal.norwitz | 2008-03-05 06:10:48 +0100 (Wed, 05 Mar 2008) | 3 lines

  Remove the files/dirs after closing the DB so the tests work on Windows.
  Patch from Trent Nelson.  Also simplified removing a file by using test_support.
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  r61242 | neal.norwitz | 2008-03-05 06:14:18 +0100 (Wed, 05 Mar 2008) | 3 lines

  Get this test to pass even when there is no sound card in the system.
  Patch from Trent Nelson.  (I can't test this.)
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  r61243 | neal.norwitz | 2008-03-05 06:20:44 +0100 (Wed, 05 Mar 2008) | 3 lines

  Catch OSError when trying to remove a file in case removal fails. This
  should prevent a failure in tearDown masking any real test failure.
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  r61244 | neal.norwitz | 2008-03-05 06:38:06 +0100 (Wed, 05 Mar 2008) | 5 lines

  Make the timeout longer to give slow machines a chance to pass the test
  before timing out.  This doesn't change the duration of the test under
  normal circumstances.  This is targetted at fixing the spurious failures
  on the FreeBSD buildbot primarily.
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  r61245 | neal.norwitz | 2008-03-05 06:49:03 +0100 (Wed, 05 Mar 2008) | 1 line

  Tabs -> spaces
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  r61246 | neal.norwitz | 2008-03-05 06:50:20 +0100 (Wed, 05 Mar 2008) | 1 line

  Use -u urlfetch to run more tests
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  r61247 | neal.norwitz | 2008-03-05 06:51:20 +0100 (Wed, 05 Mar 2008) | 1 line

  test_smtplib sometimes reports leaks too, suppress it
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  r61248 | jeffrey.yasskin | 2008-03-05 07:19:56 +0100 (Wed, 05 Mar 2008) | 5 lines

  Fix test_socketserver on Windows after r61099 added several signal.alarm()
  calls (which don't exist on non-Unix platforms).

  Thanks to Trent Nelson for the report and patch.
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  r61249 | georg.brandl | 2008-03-05 08:10:35 +0100 (Wed, 05 Mar 2008) | 2 lines

  Fix some rst.
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  r61252 | thomas.heller | 2008-03-05 15:53:39 +0100 (Wed, 05 Mar 2008) | 2 lines

  News entry for yesterdays commit.
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  r61253 | thomas.heller | 2008-03-05 16:34:29 +0100 (Wed, 05 Mar 2008) | 3 lines

  Issue 1872: Changed the struct module typecode from 't' to '?', for
  compatibility with PEP3118.
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  r61254 | skip.montanaro | 2008-03-05 17:41:09 +0100 (Wed, 05 Mar 2008) | 4 lines

  Elaborate on the role of the altinstall target when installing multiple
  versions.
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  r61255 | georg.brandl | 2008-03-05 20:31:44 +0100 (Wed, 05 Mar 2008) | 2 lines

  #2239: PYTHONPATH delimiter is os.pathsep.
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  r61256 | raymond.hettinger | 2008-03-05 21:59:58 +0100 (Wed, 05 Mar 2008) | 1 line

  C implementation of itertools.permutations().
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  r61257 | raymond.hettinger | 2008-03-05 22:04:32 +0100 (Wed, 05 Mar 2008) | 1 line

  Small code cleanup.
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  r61260 | martin.v.loewis | 2008-03-05 23:24:31 +0100 (Wed, 05 Mar 2008) | 2 lines

  cd PCbuild only after deleting all pyc files.
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  r61261 | raymond.hettinger | 2008-03-06 02:15:52 +0100 (Thu, 06 Mar 2008) | 1 line

  Add examples.
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  r61262 | andrew.kuchling | 2008-03-06 02:36:27 +0100 (Thu, 06 Mar 2008) | 1 line

  Add two items
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  r61263 | georg.brandl | 2008-03-06 07:47:18 +0100 (Thu, 06 Mar 2008) | 2 lines

  #1725737: ignore other VC directories other than CVS and SVN's too.
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  r61264 | martin.v.loewis | 2008-03-06 07:55:22 +0100 (Thu, 06 Mar 2008) | 4 lines

  Patch #2232: os.tmpfile might fail on Windows if the user has no
  permission to create files in the root directory.
  Will backport to 2.5.
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  r61269 | georg.brandl | 2008-03-06 08:19:15 +0100 (Thu, 06 Mar 2008) | 2 lines

  Expand on re.split behavior with captured expressions.
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  r61270 | georg.brandl | 2008-03-06 08:22:09 +0100 (Thu, 06 Mar 2008) | 2 lines

  Little clarification of assignments.
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  r61271 | georg.brandl | 2008-03-06 08:31:34 +0100 (Thu, 06 Mar 2008) | 2 lines

  Add isinstance/issubclass to tutorial.
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  r61272 | georg.brandl | 2008-03-06 08:34:52 +0100 (Thu, 06 Mar 2008) | 2 lines

  Add missing NEWS entry for r61263.
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  r61273 | georg.brandl | 2008-03-06 08:41:16 +0100 (Thu, 06 Mar 2008) | 2 lines

  #2225: return nonzero status code from py_compile if not all files could be compiled.
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  r61274 | georg.brandl | 2008-03-06 08:43:02 +0100 (Thu, 06 Mar 2008) | 2 lines

  #2220: handle matching failure more gracefully.
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  r61275 | georg.brandl | 2008-03-06 08:45:52 +0100 (Thu, 06 Mar 2008) | 2 lines

  Bug #2220: handle rlcompleter attribute match failure more gracefully.
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  r61278 | martin.v.loewis | 2008-03-06 14:49:47 +0100 (Thu, 06 Mar 2008) | 1 line

  Rely on x64 platform configuration when building _bsddb on AMD64.
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  r61279 | martin.v.loewis | 2008-03-06 14:50:28 +0100 (Thu, 06 Mar 2008) | 1 line

  Update db-4.4.20 build procedure.
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  r61285 | raymond.hettinger | 2008-03-06 21:52:01 +0100 (Thu, 06 Mar 2008) | 1 line

  More tests.
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  r61286 | raymond.hettinger | 2008-03-06 23:51:36 +0100 (Thu, 06 Mar 2008) | 1 line

  Issue 2246:  itertools grouper object did not participate in GC (should be backported).
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  r61288 | raymond.hettinger | 2008-03-07 02:33:20 +0100 (Fri, 07 Mar 2008) | 1 line

  Tweak recipes and tests
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  r61289 | jeffrey.yasskin | 2008-03-07 07:22:15 +0100 (Fri, 07 Mar 2008) | 5 lines

  Progress on issue #1193577 by adding a polling .shutdown() method to
  SocketServers. The core of the patch was written by Pedro Werneck, but any bugs
  are mine. I've also rearranged the code for timeouts in order to avoid
  interfering with the shutdown poll.
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  r61290 | nick.coghlan | 2008-03-07 15:13:28 +0100 (Fri, 07 Mar 2008) | 1 line

  Speed up with statements by storing the __exit__ method on the stack instead of in a temp variable (bumps the magic number for pyc files)
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  r61298 | andrew.kuchling | 2008-03-07 22:09:23 +0100 (Fri, 07 Mar 2008) | 1 line

  Grammar fix
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  r61303 | georg.brandl | 2008-03-08 10:54:06 +0100 (Sat, 08 Mar 2008) | 2 lines

  #2253: fix continue vs. finally docs.
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  r61304 | marc-andre.lemburg | 2008-03-08 11:01:43 +0100 (Sat, 08 Mar 2008) | 3 lines

  Add new name for Mandrake: Mandriva.
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  r61305 | georg.brandl | 2008-03-08 11:05:24 +0100 (Sat, 08 Mar 2008) | 2 lines

  #1533486: fix types in refcount intro.
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  r61312 | facundo.batista | 2008-03-08 17:50:27 +0100 (Sat, 08 Mar 2008) | 5 lines


  Issue 1106316. post_mortem()'s parameter, traceback, is now
  optional: it defaults to the traceback of the exception that is currently
  being handled.
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  r61313 | jeffrey.yasskin | 2008-03-08 19:26:54 +0100 (Sat, 08 Mar 2008) | 2 lines

  Add tests for with and finally performance to pybench.
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  r61314 | jeffrey.yasskin | 2008-03-08 21:08:21 +0100 (Sat, 08 Mar 2008) | 2 lines

  Fix pybench for pythons < 2.6, tested back to 2.3.
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  r61317 | jeffrey.yasskin | 2008-03-08 22:35:15 +0100 (Sat, 08 Mar 2008) | 3 lines

  Well that was dumb. platform.python_implementation returns a function, not a
  string.
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  r61329 | georg.brandl | 2008-03-09 16:11:39 +0100 (Sun, 09 Mar 2008) | 2 lines

  #2249: document assertTrue and assertFalse.
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  r61332 | neal.norwitz | 2008-03-09 20:03:42 +0100 (Sun, 09 Mar 2008) | 4 lines

  Introduce a lock to fix a race condition which caused an exception in the test.
  Some buildbots were consistently failing (e.g., amd64).
  Also remove a couple of semi-colons.
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  r61344 | raymond.hettinger | 2008-03-11 01:19:07 +0100 (Tue, 11 Mar 2008) | 1 line

  Add recipe to docs.
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  r61350 | guido.van.rossum | 2008-03-11 22:18:06 +0100 (Tue, 11 Mar 2008) | 3 lines

  Fix the overflows in expandtabs().  "This time for sure!"
  (Exploit at request.)
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  r61351 | raymond.hettinger | 2008-03-11 22:37:46 +0100 (Tue, 11 Mar 2008) | 1 line

  Improve docs for itemgetter().  Show that it works with slices.
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  r61363 | georg.brandl | 2008-03-13 08:15:56 +0100 (Thu, 13 Mar 2008) | 2 lines

  #2265: fix example.
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  r61364 | georg.brandl | 2008-03-13 08:17:14 +0100 (Thu, 13 Mar 2008) | 2 lines

  #2270: fix typo.
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  r61365 | georg.brandl | 2008-03-13 08:21:41 +0100 (Thu, 13 Mar 2008) | 2 lines

  #1720705: add docs about import/threading interaction, wording by Nick.
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  r61366 | andrew.kuchling | 2008-03-13 12:07:35 +0100 (Thu, 13 Mar 2008) | 1 line

  Add class decorators
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  r61367 | raymond.hettinger | 2008-03-13 17:43:17 +0100 (Thu, 13 Mar 2008) | 1 line

  Add 2-to-3 support for the itertools moved to builtins or renamed.
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  r61368 | raymond.hettinger | 2008-03-13 17:43:59 +0100 (Thu, 13 Mar 2008) | 1 line

  Consistent tense.
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  r61369 | raymond.hettinger | 2008-03-13 20:03:51 +0100 (Thu, 13 Mar 2008) | 1 line

  Issue 2274:  Add heapq.heappushpop().
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  r61370 | raymond.hettinger | 2008-03-13 20:33:34 +0100 (Thu, 13 Mar 2008) | 1 line

  Simplify the nlargest() code using heappushpop().
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  r61371 | brett.cannon | 2008-03-13 21:27:00 +0100 (Thu, 13 Mar 2008) | 4 lines

  Move test_thread over to unittest. Commits GHOP 237.

  Thanks Benjamin Peterson for the patch.
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  r61372 | brett.cannon | 2008-03-13 21:33:10 +0100 (Thu, 13 Mar 2008) | 4 lines

  Move test_tokenize to doctest.

  Done as GHOP 238 by Josip Dzolonga.
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  r61373 | brett.cannon | 2008-03-13 21:47:41 +0100 (Thu, 13 Mar 2008) | 4 lines

  Convert test_contains, test_crypt, and test_select to unittest.

  Patch from GHOP 294 by David Marek.
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  r61374 | brett.cannon | 2008-03-13 22:02:16 +0100 (Thu, 13 Mar 2008) | 4 lines

  Move test_gdbm to use unittest.

  Closes issue #1960. Thanks Giampaolo Rodola.
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  r61375 | brett.cannon | 2008-03-13 22:09:28 +0100 (Thu, 13 Mar 2008) | 4 lines

  Convert test_fcntl to unittest.

  Closes issue #2055. Thanks Giampaolo Rodola.
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  r61376 | raymond.hettinger | 2008-03-14 06:03:44 +0100 (Fri, 14 Mar 2008) | 1 line

  Leave heapreplace() unchanged.
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  r61378 | martin.v.loewis | 2008-03-14 14:56:09 +0100 (Fri, 14 Mar 2008) | 2 lines

  Patch #2284: add -x64 option to rt.bat.
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  r61379 | martin.v.loewis | 2008-03-14 14:57:59 +0100 (Fri, 14 Mar 2008) | 2 lines

  Use -x64 flag.
........
  r61382 | brett.cannon | 2008-03-14 15:03:10 +0100 (Fri, 14 Mar 2008) | 2 lines

  Remove a bad test.
........
  r61383 | mark.dickinson | 2008-03-14 15:23:37 +0100 (Fri, 14 Mar 2008) | 9 lines

  Issue 705836: Fix struct.pack(">f", 1e40) to behave consistently
  across platforms:  it should now raise OverflowError on all
  platforms.  (Previously it raised OverflowError only on
  non IEEE 754 platforms.)

  Also fix the (already existing) test for this behaviour
  so that it actually raises TestFailed instead of just
  referencing it.
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  r61387 | thomas.heller | 2008-03-14 22:06:21 +0100 (Fri, 14 Mar 2008) | 1 line

  Remove unneeded initializer.
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  r61388 | martin.v.loewis | 2008-03-14 22:19:28 +0100 (Fri, 14 Mar 2008) | 2 lines

  Run debug version, cd to PCbuild.
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  r61392 | georg.brandl | 2008-03-15 00:10:34 +0100 (Sat, 15 Mar 2008) | 2 lines

  Remove obsolete paragraph. #2288.
........
  r61395 | georg.brandl | 2008-03-15 01:20:19 +0100 (Sat, 15 Mar 2008) | 2 lines

  Fix lots of broken links in the docs, found by Sphinx' external link checker.
........
  r61396 | skip.montanaro | 2008-03-15 03:32:49 +0100 (Sat, 15 Mar 2008) | 1 line

  note that fork and forkpty raise OSError on failure
........
  r61402 | skip.montanaro | 2008-03-15 17:04:45 +0100 (Sat, 15 Mar 2008) | 1 line

  add %f format to datetime - issue 1158
........
  r61403 | skip.montanaro | 2008-03-15 17:07:11 +0100 (Sat, 15 Mar 2008) | 2 lines

  .
........
2008-03-16 00:07:10 +00:00

200 lines
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Plaintext

This is Python version 3.0 alpha 3
==================================
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, 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.
Documentation
-------------
Documentation for Python 3000 is online, updated twice a day:
http://docs.python.org/dev/3.0/
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).
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.