snake.py

import random

def game(comp, you):
    if comp == you:
        return None
    elif comp == 's':
        if you == 'w':
            return False
        elif you == 'g':
            return 
    elif comp == 'w':
        if you == 'g':
            return False
        elif you == 's':
            return True
    elif comp == 'g':
        if you == 's':
            return False
        elif you == 'w':
            return True


randNo = random.randint(1, 3)

if randNo == 1:
    comp = 's'
elif randNo == 2:
    comp = 'w'
elif randNo == 3:
    comp = 'g'


you = input("Your Turn: Snake(s) Water(w) or Gun(g)?")

a = game(comp, you)
if a == None:
    print("The game is a tie!")
elif a:
    print("You Win!")
else:
    print("You Lose!")