"Real" closure in Python 2.x

closure.py

#!/usr/bin/env python3

def make_counter(value):
    def inc():
        nonlocal value
        value += 1
        return value
    def dec():
        nonlocal value
        value -= 1
        return value
    return inc, dec

# Without `nonlocal` Marcin's way (doesn't work):

def make_counter(value):
    def inc(container=[value]):
        container[0] += 1
        return container[0]
    def dec(container=[value]):
        container[0] -= 1
        return container[0]
    return inc, dec