In Python what is a global statement?

Question

What is a global statement? And how is it used? I have read Python\'s official definition;
however, it doesn\'t make a lot of sense to me.

Answer 1

a = 1

def f():
    a = 2 # doesn't affect global a, this new definition hides it in local scope

a = 1

def f():
    global a
    a = 2 # affects global a