[Python-Dev] Buffer protocol for io.BytesIO?

[Antoine Pitrou]

Hello all,

In issue #5506, I originally proposed that io.BytesIO objects support
the buffer protocol, to make it possible to access the internal buffer
without intermediate copies.

Then it came to me then perhaps it would be too automatic. So I'm
currently floating between:
- add implicit buffer protocol support to BytesIO objects
- add explicit buffer protocol support through the call of a
  getbuffer() method, which would return a small intermediate object
  supporting the buffer protocol on behalf of the original BytesIO
  object

What do you think would be better?

Thank you

Antoine.