#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Hash starts a comment. Python will ignore anything written here.
# The first line of the application helps the OS to figure out how to run the application (i.e. using Python)
# The second line specifies the encoding used in this file.
# If you still have no idea, just copy those two to your file :P

#------------------------------------------------------------------------------
# Define the main method
#------------------------------------------------------------------------------
def main():
	'''The main entry of the application (i.e. The tasks should start from here)
	'''
	print("Hello World") # Print the text `Hello World` to the screen
	pass # Do nothing, yes Python has a statement to do nothing :D

#------------------------------------------------------------------------------
# Check if this file is run as an application
#------------------------------------------------------------------------------
if __name__ == "__main__":
	# If the condition is true, execute the main method
	main()

Add helloworld demo