'warnings' code in places where it was previously not possible (e.g., the
parser). It could also potentially lead to a speed-up in interpreter start-up
if the C version of the code (_warnings) is imported over the use of the
Python version in key places.

Closes issue #1631171.

It was only used as a helper in types.py to access types (GetSetDescriptorType and MemberDescriptorType),
when they can easily be obtained with python code.
These expressions even work with Jython.

I don't know what the future of the types module is; (cf. discussion in http://bugs.python.org/issue1605 )
at least this change makes it simpler.

inspect.py, and pydoc.py.  Specifically, this allows for querying the type of
an object against these built-in C types and more importantly, for getting
their docstrings printed in the interactive interpreter's help() function.

This patch includes a new built-in module called _types which provides
definitions of getset and member descriptors for use by the types.py module.
These types are exposed as types.GetSetDescriptorType and
types.MemberDescriptorType.  Query functions are provided as
inspect.isgetsetdescriptor() and inspect.ismemberdescriptor().  The
implementations of these are robust enough to work with Python implementations
other than CPython, which may not have these fundamental types.

The patch also includes documentation and test suite updates.

I commit these changes now under these guiding principles:

1. Silence is assent.  The release manager has not said "no", and of the few
   people that cared enough to respond to the thread, the worst vote was "0".

2. It's easier to ask for forgiveness than permission.

3. It's so dang easy to revert stuff in svn, that you could view this as a
   forcing function. :)

Windows build patches will follow.

Cleanup Python-ast.c generation.

+ I'm not sure what to do about configure.in.  Left it alone.

+ Ditto pyexpat.c.  Fred or Martin will know what to do.

Fixes bug #121706.

empty argumentlists.

sys.builtin_module_names.  (Noticed by Toby Dickenson.)

Setup.in: clarified Tk comments somewhat.
structmodule.c: use memcpy() instead of double precision assignment.

Note addition of gethostbyaddr() and improved repr() for sockets,
renaming of md5.md5() to md5.new(), and fixing of leaks in threads.

audioop.c: fix for MPW
config.c.in: save original argc/argv for Lance
rotormodule.c: new coding conventions
timemodule.c: add casts for Lance

	Does not need any SGI-specific libraries.
cgen.py, cstubs, Makefile: Generate glmodule.c differently so that it
	can be compiled using an ANSI compiler.

  parser.
* mappingobject.c (lookmapping): 'freeslot' was never used due to a bug in
  the code.

  careful about these.
* arraymodule.c: added 8 byte swap; added 'i' format character; added
  reverse() method; rename read/write to fromfile/tofile.
* config.c: Set version to 0.9.9++.
* rotormodule.c (r_rand): declare k1..k5 as unsigned longs so the shifts
  will have a well-defined effect independent of word size.
* bltinmodule.c: renamed bagof() to filter().

  no longer done by config.c).
* stdwinmodule.c (initstdwin), config.c (initall): get command line
  arguments from sys.argv instead of special-casing stdwin in config.c
* import.c (get_module): fix core dump when foomodule.o does not define
  initfoo().
* ChangeLog: documented changes by Sjoerd.

  image objects, and lots of new methods.
* Added counting of allocations and deallocations of builtin types if
  COUNT_ALLOCS is defined.  Had to move calls to NEWREF down in some
  files.
* Bug fix in sorting lists.