has a few slightly different calls from the old one.

the change to regrtest.py to unload all newly imported modules did
something bad to the threads -- and I realized that they would never
stop!

This uses the same precautions when trying to find a temporary
directory as when the actual tempfile is created (using O_CREAT and
O_EXCL).  On non-posix platforms, nothing is changed.

Don't build the _tkinter project from Build, only the one from Extensions:Imaging, which now drops its resulting .slb into the PlugIns folder.

The fix also adds support for POSTing to an https URL

The .exp file hadn't been regenerated after adding the threading stuff. This means that building a nonthreaded PythonCore will now require massaging of the .exp.

Added a note about Personal Webserver, and replaced "netpresenz" by a list of the current mac webservers.

Added Corran Webster's explanation of how to write extensions in MPW and a pointer to his W documentation.

added 'abspath()' and 'extend()'.

exceptions better.

errors in the setup script or on the command line, so shouldn't result
in a traceback.

  'make_archive()' to a global static dictionary, ARCHIVE_FORMATS.
Added 'check_archive_formats()', which obviously makes good use of
  this dictionary.

and the other "composite meta-data" methods.

after each test has been run.  This avoids excessive memory growth
during the tests.

* Base address for all extension modules updated. PC\dllbase_nt.txt
also updated.  Erroneous "libpath" directory removed for all
projects.

* winsound module moved from a builtin module to an extension
module.  This was done primarily to avoid Python16.dll needing to
pull in winmm.dll.  Really dumb test added for winsound - but if
nothing else it ensures the module imports.

* Temp directory for all projects are now specific to the project
(rather than common as before).  This avoids any conflicts with
debug symbols or common file names etc.
NOTE: You should manually delete your existing build directory after
applying this patch, as the MSVC "clean" command will now only clean
the new temporary directories - not the existing common temp
directory.

* Base address for all extension modules updated. PC\dllbase_nt.txt
also updated.  Erroneous "libpath" directory removed for all
projects.

* winsound module moved from a builtin module to an extension
module.  This was done primarily to avoid Python16.dll needing to
pull in winmm.dll.  Really dumb test added for winsound - but if
nothing else it ensures the module imports.

"""
Running "test_extcall" repeatedly results in memory leaks.

One of these can't be fixed (at least not easily!), it happens since
this code:

def saboteur(**kw):
    kw['x'] = locals()
d = {}
saboteur(a=1, **d)

creates a circular reference - d['x']['d']==d

The others are due to some missing decrefs in ceval.c, fixed by the
patch attached below.

Note:  I originally wrote this without the "goto", just adding the
missing decref's where needed.  But I think the goto is justified in
keeping the executable code size of ceval as small as possible.
"""

[I think the circular reference is more like kw['x']['kw'] == kw. --GvR]

_PyTuple_Resize().  In addition, a change suggested by Jeremy Hylton
to limit the size of the free lists is also merged into this patch.

Charles wrote initially:

"""
Test Case:  run the following code:

class Nothing:
    def __len__(self):
        return 5
    def __getitem__(self, i):
        if i < 3:
            return i
        else:
            raise IndexError, i

def g(a,*b,**c):
    return

for x in xrange(1000000):
    g(*Nothing())


and watch Python's memory use go up and up.


Diagnosis:

The analysis begins with the call to PySequence_Tuple at line 1641 in
ceval.c - the argument to g is seen to be a sequence but not a tuple,
so it needs to be converted from an abstract sequence to a concrete
tuple.  PySequence_Tuple starts off by creating a new tuple of length
5 (line 1122 in abstract.c).  Then at line 1149, since only 3 elements
were assigned, _PyTuple_Resize is called to make the 5-tuple into a
3-tuple.  When we're all done the 3-tuple is decrefed, but rather than
being freed it is placed on the free_tuples cache.

The basic problem is that the 3-tuples are being added to the cache
but never picked up again, since _PyTuple_Resize doesn't make use of
the free_tuples cache.  If you are resizing a 5-tuple to a 3-tuple and
there is already a 3-tuple in free_tuples[3], instead of using this
tuple, _PyTuple_Resize will realloc the 5-tuple to a 3-tuple.  It
would more efficient to use the existing 3-tuple and cache the
5-tuple.

By making _PyTuple_Resize aware of the free_tuples (just as
PyTuple_New), we not only save a few calls to realloc, but also
prevent this misbehavior whereby tuples are being added to the
free_tuples list but never properly "recycled".
"""

And later:

"""
This patch replaces my submission of Sun, 16 Apr and addresses Jeremy
Hylton's suggestions that we also limit the size of the free tuple
list.  I chose 2000 as the maximum number of tuples of any particular
size to save.

There was also a problem with the previous version of this patch
causing a core dump if Python was built with Py_TRACE_REFS.  This is
fixed in the below version of the patch, which uses tupledealloc
instead of _Py_Dealloc.
"""

"""
In the course of debugging this I also saw that cPickle is
inconsistent with pickle - if you attempt a pickle.load or pickle.dump
on a closed file, you get a ValueError, whereas the corresponding
cPickle operations give an IOError.  Since cPickle is advertised as
being compatible with pickle, I changed these exceptions to match.
"""

"""
Problem description:

	Run the following script:

import test.test_cpickle
for x in xrange(1000000):
    reload(test.test_cpickle)

Watch Python's memory use go up up and away!

In the course of debugging this I also saw that cPickle is
inconsistent with pickle - if you attempt a pickle.load or pickle.dump
on a closed file, you get a ValueError, whereas the corresponding
cPickle operations give an IOError.  Since cPickle is advertised as
being compatible with pickle, I changed these exceptions to match.
"""