# - compatibility with Python 3
from __future__ import print_function  # print('me') instead of print 'me'
from __future__ import division  # 1/2 == 0.5, not 0

my_var = 3

def my_first_func():
    # my_func can 'see' the global variable
    print('I see "my_var" = ', my_var, ' from "my_first_func"')

my_first_func()

def my_second_func():
    a = 10
    print('I see "a" = ', a, 'from "my_second_func"')

my_second_func()

a