Spock.py

import random

relationships = {'Spock': {'Scissors': 'smashes', 'Rock': 'vaporizes'},
                 'Scissors': {'Paper': 'cuts', 'Lizard': 'decapitates'},
                 'Lizard': {'Paper': 'eats', 'Spock': 'poisons'},
                 'Rock': {'Lizard': 'crushes', 'Scissors': 'crushes'},
                 'Paper': {'Spock': 'disapproves', 'Rock': 'covers'}
                 }


def get_match_results(player, player2):
    if player == player2:
        return 'Tie!'
    if player2 in relationships[player]:
        return ' '.join((player, relationships[player][player2], player2))
    elif player in relationships[player2]:
        return ' '.join((player2, relationships[player2][player], player))



def play_game():
    for player_choice in relationships.keys():
        computer_choice = random.choice(list(relationships.keys()))
        print(get_match_results(player_choice, computer_choice))


if __name__ == '__main__':
    play_game()