python 3 from command line

[snippsat]

Remember this Thread Dixon? and use code tag.
So there did i post full working setup,that takes it also one step further as also making a wheel.
The vvsearch module will also of course working stand alone,it's from the book you did read Head first Python.
I did a called it vvsearch,so you should avoid conflict if already make vsearch.

# vvsearch.py
def search4vowels(phrase: str) -> set:
    vowels = set('aeiou')
    return vowels.intersection(set(phrase))

def search4letters(phrase: str, letters: str) -> set:
    return set(letters).intersection(set(phrase))

if __name__ == '__main__':
    print(search4letters('hitch-hiker', 'aeiou'))
    print(search4letters('galaxy', 'xyz'))
    print(search4letters('life, the universe, and everything', 'o'))

Usage if import:

C:\code
λ ptpython
>>> import vvsearch

>>> vvsearch.search4vowels('abcde')
{'e', 'a'}
>>> vvsearch.search4letters('hello', 'aeiou')
{'e', 'o'}