Antoine Pitrou <pit...@free.fr> added the comment:

Thinking about it, I'm not sure this would be a good idea to do this by 
default. There is an ambiguity where it's not obvious if the buffer would 
contain the whole data or only the bytes after the current position.

I think perhaps an explicit method (getbuffer()?) could be used to export a 
buffer-compatible object, without copying. Perhaps a memoryview; this would 
imply defining bf_releasebuffer without bf_getbuffer.

----------
stage: unit test needed -> needs patch

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue5506>
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