add test cases for non-UserList class, tuple, & string

If a non-tuple sequence is passed as the *arg, convert it to a tuple
before checking its length.
If named keyword arguments are used in combination with **kwargs, make
a copy of kwargs before inserting the new keys.

Careful, this has had zero testing (except by Peter)!

dictionary that contains the same key/value pairs as p.

Building on Windows NT.
Removed Tcl installation.
Commented out Doc installation.

    Win32 test case.

    Win32 test case

(Needs testing on Win32.)

light of three different situations: (1) running from build; (2)
running from installed; (3) running without being able to find an
installation (e.g. as a COM object).  The system paths in the
repository are only used for (3); the path deduced from the
installation location are used otherwise.  PYTHONHOME overrides in all
cases.

Read the comments for more details.

name is much longer, which fouls up dis's formatting slightly; this is
a "fix" for that.

script pointed to by PYTHONPATH will be executed on startup.  That
should say PYTHONSTARTUP.

Martinez Foffani <hfoffani@sofrecom.com.ar>.

device info.  I don't know why these occur, but they seem to be
shortlived and harmless.

PyErr_Occurred(), just set x=NULL and break.  Oh, and make Jeremy stop
nagging me about the "special" indentation for this block.

the return value of PySequence_Length().  If an exception occurred,
the returned length will be -1.  Make sure this doesn't get obscurred,
and that the bogus length isn't used.

If you do a "cvs update" in the Lib directory, it will pop up there.

use global __debug__ flag to determine if compiled files will be ".pyc"
or ".pyo".  Tweaked compilation output messages too.

might have been copied, regardless of the 'update' flag.

Made handling OSError in 'mkpath()' more standard.

make 'mkdir()' return list of directories created.

for the 'bdist_dumb' command.  Adapted, with tweakage, from the 'sdist'
command.

in preparation for the 'bdist_dumb' command; these methods remain as
trivial wrappers around the versions in distutils.util.

'has_ext_modules()', 'has_c_libraries()', 'has_modules()', and 'is_pure()'.

  is responsible for installing all Python modules (pure and extensions).
Added 'get_outputs()' in preparation for the 'bdist' command, and
  '_mutate_outputs()' to support 'get_outputs()'.

  in a class attribute 'sub_commands', rather than hard-coded in 'run()'.
  This should make it easier to subclass 'install', and also makes it
  easier to keep 'run()' and the new 'get_outputs()' consistent.
Added 'get_outputs()' in preparation for the 'bdist' command.

methods of Distribution instead of grovelling directly in self.distribution.

Changed signature of 'build_extensions()': no longer takes the extension
  list, but uses 'self.extensions' (just like 'get_outputs()' has to)
Moved call to 'check_extensions_list()' from 'run()' to 'build_extensions()',
  again for consistency with 'get_outputs()'.