Added names from release27-maint branch that were missing from py3k.

Issue #9530:  Fix undefined-behaviour-inducing overflow checks in bytes and bytearray implementations.

by Kristján.  Unfortunately the 3.x Windows buildbots are in a wreck, so we'll
have to watch them when they become fit again.

Interpreter Lock around all system calls.  Original patch by Ryan Kelly.

Thread-local objects involved in reference cycles will be deallocated
timely by the cyclic GC, even if the underlying thread is still running.

and make it return the file descriptor.

Fix Issue7007 -  Use percent-encoded consistently instead of URL Encoded variations. Changes in Modules.

  ------------------------------------------------------------------------
  r81149 | florent.xicluna | 2010-05-13 23:40:01 +0200 (jeu. 13 mai 2010) | 2 lignes

  Better test skipping, with message in the log.
  ------------------------------------------------------------------------
  r81150 | florent.xicluna | 2010-05-13 23:41:05 +0200 (jeu. 13 mai 2010) | 2 lignes

  Improve test feedback to troubleshoot issue #8423 on OS X.
  ------------------------------------------------------------------------
  r81151 | florent.xicluna | 2010-05-14 01:46:48 +0200 (ven. 14 mai 2010) | 2 lignes

  Revert changeset r81150 which helped diagnose issue #8423 on some OS X buildbot.
  ------------------------------------------------------------------------
  r82056 | florent.xicluna | 2010-06-17 22:30:56 +0200 (jeu. 17 juin 2010) | 2 lignes

  Add few words about test.test_genericpath.CommonTest
  ------------------------------------------------------------------------

  ------------------------------------------------------------------------
  r80411 | florent.xicluna | 2010-04-23 19:59:10 +0200 (ven. 23 avril 2010) | 2 lignes

  Remove ImportWarnings filters.  They become obsolete after r79310, issue #8205.
  ------------------------------------------------------------------------
  r80412 | florent.xicluna | 2010-04-23 20:10:12 +0200 (ven. 23 avril 2010) | 2 lignes

  Fix the "regrtest -s" switch.
  ------------------------------------------------------------------------
  r81140 | florent.xicluna | 2010-05-13 19:05:29 +0200 (jeu. 13 mai 2010) | 3 lignes

  Add sensible information about the OS X platform to diagnose issue #8423:
  test_pep277 fails on "x86 Tiger" buildbot but not on "PPC Tiger".
  ------------------------------------------------------------------------
  r81141 | florent.xicluna | 2010-05-13 20:16:06 +0200 (jeu. 13 mai 2010) | 2 lignes

  Revert the additional OS X information (r81140).  Keep the endianness information.
  ------------------------------------------------------------------------

Add read_file, read_string, and read_dict to the configparser API;
new source attribute to exceptions.

Now the _collections is statically built, the build dependencies are in proper
order and build works fine.

Commit Log from r83874:
Issue 9396.   Apply functools.lru_cache in the place of the
random flushing cache in the re module.

The problem is that the re module is imported by sysconfig
and re needs functools which uses collections.OrderedDict()
but the _collectionsmodule.c code is not yet constructed
at this point in the build.

The likely best solution will be to include _collections
as part of the static build before the rest of the
boot-strapping.

random flushing cache in the re module.

Updated to solution to use the functools.lru_cache().
Restores the API so that purge() is not needed
(because the cache never gets big).

Just move the code and some variables.

socket into the closed state without closing the underlying file
descriptor.

Fix a regression introduced in test_sys by r83778.

setup_context() replaces .pyc or .pyo filename suffix by .py, but it
didn't work if the filename contains a non-ascii character because the
function used the wrong unit for the length (number of characters
instead of the number of bytes).

With this patch, it uses unicode filenames instead of bytes filenames,
to fix the bug and to be fully unicode compliant.

shutdown.