rockpaperscissors2.py

#!/usr/local/bin/python3

# Example Python program to play the rock, paper, scissors game

# ./rockpaperscissors2.py
# Player 1 choose rock, paper or scissors? scissors
# Player 1 chooses scissors
# Player 2 choose rock, paper or scissors? paper
# Player 2 chooses paper
# scissors wins over paper  Player 1 wins.

# ./rockpaperscissors2.py
# Player 1 choose rock, paper or scissors? scissors
# Player 1 chooses scissors
# Player 2 choose rock, paper or scissors? rock
# Player 2 chooses rock
# rock wins over scissors  Player 2 wins.

# ./rockpaperscissors2.py
# Player 1 choose rock, paper or scissors? rock
# Player 1 chooses rock
# Player 2 choose rock, paper or scissors? paper
# Player 2 chooses paper
# paper wins over rock  Player 2 wins.

import sys

if sys.version_info[0] < 3:
    raise Exception("Must be using python 3")


def getPlayerInput(player):
    response = ''
    while response not in {'rock', 'paper', 'scissors'}:
        response = input(str(player) + ' choose rock, paper or scissors? ')
        response = response.strip().lower()  # strip out whitespace and convert to lowercase
    print(player + ' chooses ' + response)
    return response


response1 = getPlayerInput('Player 1')
response2 = getPlayerInput('Player 2')

reason_for_win = [' crushes ', ' cut ', ' covers ']
winning_combinations = [('rock', 'scissors'), ('scissors', 'paper'), ('paper', 'rock')]

if (response1, response2) in winning_combinations:
    reason = reason_for_win[winning_combinations.index((response1, response2))]
    print(response1.capitalize() + reason + response2 + " so Player 1 wins.")
elif (response2, response1) in winning_combinations:
    reason = reason_for_win[winning_combinations.index((response2, response1))]
    print(response2.capitalize() + reason + response1 + " so Player 2 wins.")
else:
    print("It's a tie. Player 1 and 2 both played " + response1)