stupidly unpythonic methodcaller example

python

>>> from operator import methodcaller
>>> from random import randint
>>> class Foo(object):
...     def __init__(self):
...         self.number = randint(0, 10)
...     def get_number(self):
...         return self.number
...
>>> lfoos = [Foo() for i in xrange(10)]
>>> for foo in lfoos:
...     print foo.number
...
4
5
9
5
10
10
0
3
0
6
>>> f = methodcaller('get_number')
>>> for foo in sorted(lfoos, key=lambda x: f(x)):
...     print foo.number
...
0
0
3
4
5
5
6
9
10
10
>>>