Automatically decorating every instance method in a class

Question

I want to apply the same decorator to every method in a given class, other than those that start and end with __.

It seems to me it should be doable using

Answer 1

You could do this (not sure if this is the most elegant way though):

def get_all_instance_methods(x):
    return filter(callable, map(lambda d: getattr(x, d), dir(x)))

As for the cls.method_name, you will have to use getattr(cls, method_name).