[Python-3000] Py3k-buffer branch merged back to py3k branch

[Travis E. Oliphant]

Hello all,

I'm sorry I won't be attending the Google sprints next week.  I'm going 
to be moving from Utah to Texas next week and will be offline for 
several days.

In preparation for the sprints, I have converted all Python objects to 
use the new buffer protocol PEP and implemented most of the C-API.  This 
work took place in the py3k-buffer branch which now passes all the tests 
that py3k does.

So, I merged the changes back to the py3k branch in hopes that others 
can continue working on what I've done.  The merge took place after 
fully syncing the py3k-buffer branch with the current trunk.

There will be somebody from our community that will be at the Sprints 
next week.  He has agreed to try and work on the buffer protocol some 
more.  He is new to Python and so will probably need some help.  He has 
my cell phone number and will call me with questions which I hope to 
answer.

Left to do:

1) Finish the MemoryViewObject (getitem/setitem needs work).
2) Finish the struct module changes (I've started, but have not checked
	the changes in).
3) Add tests

Possible problems:

It seems that whenever a PyExc_BufferError is raised, problems (like 
segfaults) occur.  I tried to add a new error object by copying how 
Python did it for other errors, but it's likely that I didn't do it right.

I will have email contact for a few days (until Tuesday) but will not 
have much time to work.

Thanks,


-Travis Oliphant