Robert Latest via Python-list wrote:
> I found a workaround using a wrapper method which calls a C function,
> passing the instance as a separate argument. It works, and I cannot see
> any disadvantage. It's just not as elegant as I'd like it to be, and I
> don't understand WHY the C "method" doesn't receive a pointer to the
> Python instance. Maybe somebody can clarify.
I don't know much about the C-implementation side, but functions written in
Python are also descriptors. Given
def f(self): pass
class A(object):
m = f
c = abs
v = 42
a = A()
a seemingly simple attribute access
m = a.m # m is now a bound method
invokes f.__get__(a, A) under the hood while
m = a.c
assert m is abs
just returns the function (abs in the example) the same way it returns any
other value:
v = a.v
assert v == 42
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