22.06.18 00:04, Ivan Pozdeev via Python-Dev пише:
On 21.06.2018 23:40, Guido van Rossum wrote:
I'm with Serhiy here, for mutable values I don't think the methods
should compare equal, even when the values do. For immutables I don't
care either way, it's an implementation detail.
In this light, methods rather shouldn't have a rich comparison logic at
all
This would be so if you get the same method object when resolve an
attribute. But a.f is not a.f. Every time a new method object is
created. If we want a.f == a.f, we need to implement a rich comparison
logic.
-- at the very least, until we have a realistic use case and can
flesh out the requirements for it.
There are realistic use cases. You will get a number of failures in the
Python tests if make method objects incomparable.
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