Issue 2517: Allow unicode messages in Exceptions again by correctly bypassing the instance dictionary when looking up __unicode__ on new-style classes

  redundant ":443" port number designation when the connection is using the
  default https port (443).

  properly when raising an exception due to the bz2file being closed.
  Prevents a deadlock.

Forward-port of 38255 (2005/01/15!)
This was already fixed in 2.4, but never merged into trunk...
py3k is already right, thanks to the bytes/str distinction!

Should be backported to 2.5.

  interrupted by a signal.

  freelists.  Changes their CompactFreeList apis into ClearFreeList apis and
  calls them via gc.collect().

the builtin one.

svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

........
  r64493 | benjamin.peterson | 2008-06-24 04:14:14 +0200 (Di, 24 Jun 2008) | 1 line

  add a fix_import mapping for cPickle -> pickle
........
  r64651 | brett.cannon | 2008-07-02 04:00:11 +0200 (Mi, 02 Jul 2008) | 3 lines

  Update fix_imports for urllib. Had to change the fixer itself to handle modules
  that are split across several renames in 3.0.
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  r64669 | brett.cannon | 2008-07-02 21:43:48 +0200 (Mi, 02 Jul 2008) | 4 lines

  Backing out last change until fix_imports is working again. Also re-enable the
  testing for fix_imports; if it is deemed that it takes too long to run then a
  random sample should be taken and used to test it.
........

#3168.

makes the float constructor behave in the same way as specified
by various other language standards, including C99, IEEE 754r,
and the IBM Decimal standard.

This is a new feature, but Barry authorized adding it in the beta period.

Also fixes
- Issue #1526: Allow more than 64k files to be added to Zip64 file.

- Issue #1746: Correct handling of zipfile archive comments (previously
  archives with comments over 4k were flagged as invalid). Allow writing
  Zip files with archives by setting the 'comment' attribute of a ZipFile.

the GIL must be re-acquired in the callback function