[three]Bean

dynamically reassigning methods from one class to another in python (dunder func, who knew?)

Jan 27, 2011 | categories: python View Comments

I don't know if you've ever wanted to take a method from one class and attach it to another. I never knew I'd wanted to, but it turns out I did.

#!/usr/bin/python

class Foo(object):
    def __init__(self, id):
        self.id = id
    
    def bar(self):
        print self.id

class Oof(object):
    def __init__(self, id):
        self.id = id

# Wow
Oof.bar = Foo.bar.__func__

Foo(52).bar()      # prints 52
Oof(10).bar()      # prints 10

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