[Python-Dev] PEP 575: Unifying function/method classes

[Jeroen Demeyer]

On 2018-04-20 12:02, Jeroen Demeyer wrote:
> One solution to improve backwards compatibility would be to duplicate
> some classes. For example, make a separate class for bound methods in
> extension types, which would be literally a duplicate of the existing
> types.MethodType class (possibly with a different name). In other words,
> a bound method of an extension type would work exactly the same way as
> an existing bound method but it would artificially be a different class
> for the benefit of non-duck-typing.

I elaborated on this:

https://www.python.org/dev/peps/pep-0575/#two-phase-implementation