# Import for example below
from math import *

# Variable inside functions do not exist outside

def a():
    a_out = 5
    print a_out

print a_out

# Smaller scope takes precedence

b_out = 2

def b():
    b_out = 5
    print b_out

print b_out

# Nested scope

c_out = 1
print c_out

def c1():
    c_out = 2
    print c_out

    def c2():
        print c_out
        c_out = 3
        print c_out

    print c_out

print c_out

# Overwriting module imported as *
print pi

pi = "Pie"

print pi

# For loop 'local' variable

i = -1
print i

for i in range(10):
    print i

# Retains value from last iteration
print i