[Python-Dev] Shared ABCs for the IO implementation

[Antoine Pitrou]

Hello,

I would like to know if both IO implementations (the C one and the Python one)
should share their ABCs (IOBase, RawIOBase, etc.). It looks preferable to me but
since I'm not very familiar with ABCs I'd like to be sure it's the good choice.

(of course, the *implementations* won't be shared at all. Just the virtual
inheritance information)

Regards

Antoine.