Your_first_game.py

from random import randint

#create a list of play options
t = ["Rock", "Paper", "Scissors"]

#assign a random play to the computer
computer = t[randint(0,2)]

#set player to False
play = False

while play == False:
    print("Rock, Paper, Scissors?")
    player = input()
    if player == computer:
        print("Tie!")
    elif player == "Rock":
        if computer == "Paper":
            print("You lose!", computer, "covers", player)
        else:
            print("You win!", player, "smashes", computer)
    elif player == "Paper":
        if computer == "Scissors":
            print("You lose!", computer, "cut", player)
        else:
            print("You win!", player, "covers", computer)
    elif player == "Scissors":
        if computer == "Rock":
            print("You lose...", computer, "smashes", player)
        else:
            print("You win!", player, "cut", computer)
    else:
        print("That's not a valid play. Check your spelling!")
    #player was set to True, but we want it to be False so the loop continues
    print("Do you want to play the game again")
    play_cont = input()
    if play_cont == 'yes':
        play = False
        computer = t[randint(0,2)]
    else:
        print("Thanks for playing the game")  
        break