'I love that I can define + for any object in Ruby and that doing so gives me += for free.' fwiw: this works in python too >>> class Foo(object): ... def

'I love that I can define + for any object in Ruby and that doing so gives me += for free.' fwiw: this works in python too >>> class Foo(object): ... def __add__(self, x): ... print "%s+%s"%(self,x) ... >>> a = Foo() >>> a+=8 <__main__.Foo object at 0x657d0>+8 >>> You can override __iadd__ separately too.