How to replace __str__ for a function

Question

I want to change the string representation of a python function to be just the function name.

Eg for some function

def blah(x):
 ...

<

Answer 1

As Joran said:

class NamedFunction:
    def __init__(self, name, f):
        self.f = f
        self.name = name

    def __call__(self, *args, **kwargs):
        return self.f(*args, **kwargs)

    def __str__(self):
        return self.name


f = NamedFunction("lambda: 'blah'", lambda: 'blah')
print(f())
print(f)