(Also fix some whitespace)

Klocwork #364.

As mentioned on python-dev, reverting patch #1504333 because it introduced
an infinite loop in rev 47154.

This patch also adds a test to prevent the regression.

on exception classes.  Would require introducing a tp_unicode slot to make it
work otherwise.

Fixes bug #1551432 and will be backported.

as first argument, and failed with a 'bad argument to internal function'
error message.

and they gave a strange error message from PyArg_ParseTuple:
    function takes exactly 2 arguments (3 given).

With tests.

if an input hook has been defined.  Patch by Richard Boulton.

This select() code is only executed with readline 2.1, or if
READLINE_CALLBACKS is defined.

Backport candidate for 2.5, 2.4, probably earlier versions too.

Fix the speed regression in inspect.py by adding another cache to speed up getmodule(). Patch #1553314

offending buildbot

Also make sure that every exception class has __module__ set to
'exceptions'.

imports (if not in package and if beyond toplevel package).

of os.urandom().

subprocess module.

Facilitate cross-compilation by having binaries in separate Win32 and x64 directories.
Rationalized configs by making proper use of platforms/configurations.
Remove pythoncore_pgo project.
Add new PGIRelease and PGORelease configurations to perform Profile Guided Optimisation.
Removed I64 support, but this can be easily added by copying the x64 platform settings.

the function name was placed into a regex pattern and the unbalanced paren
caused re.compile() to report an error

[Bug #1525469] SimpleXMLRPCServer still uses the sys.exc_{value,type} module-level globals instead of calling sys.exc_info().  Reported by Russell Warren

to use "in".

- gbk and gb18030 codec now handle U+30FB KATAKANA MIDDLE DOT correctly.
- iso2022_jp_2 codec now encodes into G0 for KS X 1001, GB2312
  codepoints to conform the standard.
- iso2022_jp_3 and iso2022_jp_2004 codec can encode JIS X 2013:2
  codepoints now.

Add a comment about some refactoring.  (There's probably more that should be done.)  I will reformat this file in the next checkin due to the inconsistent tabs/spaces.

generator expressions (x for x, in ... ) works again.

Sigh, I only fixed for loops the first time, not list comps and genexprs too.
I couldn't find any more unpacking cases where there is a similar bug lurking.

This code should be refactored to eliminate the duplication.  I'm sure
the listcomp/genexpr code can be refactored.  I'm not sure if the for loop
can re-use any of the same code though.

Will backport to 2.5 (the only place it matters).