I'm working on pulling some functionality out of one object and putting it in another, and I came across this interesting problem:
class Foo:
me = "foo"
class Bar:
me = "bar"
def get_me(self):
return self.me
Foo.get_me = Bar.get_me
x = Foo()
print x.get_me()
What does this print?
And, next question, why is that?
After lunch I'll post my thoughts 
Until now, I had assumed that the semi-magic self variable was set on method calls (ie, when x.get_me() is called)... But apparently it's set when the object is instantiated (which makes perfect sense, otherwise getattr(Bar(), 'get_me')() would not work).
So I can only presume that something equivalent to this happens when an object is instantiated:
new_obj = Class()
for (key, val) in new_obj.__dict__.items():
if not callable(val): continue
setattr(new_obj, key, partial(val, new_obj))