intro.py

'''
    Python is an interpreted general-purpose programming language developed by Guido van Rossum in 1990.

    https://en.wikipedia.org/wiki/Python_(programming_language)
'''

#!/usr/bin/python

def main():
    # do something
    print("hello python")
    # hello python

    return

if (__name__ == "__main__"): main()

'''
    run from command-line:
        $ python <filename>.py
'''