# Scope 2

def f1():
    x = 2
    x = x + 3
    return x

print x

y = f1()

print x
print y

# Why variables are locally scoped
def corrupt_string(my_string):
    my_string = "Corrupted String"
    return my_string

# Since my_string is immutable, we know it cannot be modified
# Since variables are locally scoped, we know it cannot be redefined inside a function
my_string = "My Important String"
corrupt_string(my_string)
print my_string
# Therefore my_string is not corrupted