[Python-Dev] strop vs. string

[M.-A. Lemburg]

Mark Hammond wrote:
> 
> [Tim]
> > The buffer object has been neglected for years:  is that because it's in
> > prime shape, or because nobody cares about it enough to maintain it?
> 
> My take is a little different.  I think people could be convinced to care
> about it, and indeed I do.  However, it has one fatal flaw, and no one seems
> to know what to do about it.
> 
> The problem is the one best demonstrated with the array module - if you get
> a pointer to the buffer interface for an array object, but the array then
> resizes itself, the buffer pointer dangles.

I guess there are three ways to "solve" this:

a) mutable types don't implement the getreadbuf interface

b) the getreadbuf interface is complemented with a callback
   interface, so the the buffer object can be notified of
   the change

c) calling getreadbuf on a mutable object causes this object
   to become immutable

-- 
Marc-Andre Lemburg
CEO eGenix.com Software GmbH
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