'an example module'
def f():
    'function f'
    print('Executing f()')

def g():
    'function g'
    print('Executing g()')
    
x = 0  # global var

print(dir())
# Solution to Practice Problem 7.6
if __name__ == '__main__':
   print('Testing module example:')
   f()
   g()
   print(x)