Modify the function variables from inner function in python

Question

It\'s ok to get and print the outer function variable a

def outer():
    a = 1
    def inner():
        print a

It\'s also ok

Answer 1

In Python 3 you can do this with the nonlocal keyword. Do nonlocal a at the beginning of inner to mark a as nonlocal.

In Python 2 it is not possible.