Demonstrate local, nonlocal, and global scope of variables

scope-example.py

def scope_test():
    def do_local():
        spam = "local spam"
    def do_nonlocal():
        nonlocal spam
        spam = "nonlocal spam"
    def do_global():
        global spam
        spam = "global spam"
    spam = "test spam"
    do_local()
    print("After local assignment:", spam) # test spam
    do_nonlocal()
    print("After nonlocal assignment:", spam) # nonlocal spam
    do_global()
    print("After global assignment:", spam) # nonlocal spam
scope_test()
print("In global scope", spam) # global spam