python3 gist

new_gist_file_0

if __name__ == '__main__':
    main(sys.argv[1]) # The 0th arg is the module filename
    
   
if __name__ == '__main__':
    unittest.main()

#!/usr/bin/env python3

Use __name__ to determine how the module is being used
If __name__ == "__main__" the module is being executed Module code is executed exactly once, on  rst import
def is a statement which binds a function de nition to a name
Command line arguments are accessible through sys.argv 
The script  lename is in sys.argv[0]

Tuple - immutable sequance. 
t = ("Norway" , 4.95, 1)