Girls Who Code | Python Fiddle

# Viki Zygouras                                                          
# Girls Who Code Application                                                     
# Rock/Paper/Scissors Game

import random
# Note: random.randint(a,b) returns a random integer 
# in the range [a, b] (inclusive)

# Returns True if gesture is one of the strings 'rock', 'paper', or 'scissors',
# and False otherwise. 
                                                    
def isValidGesture(gesture):
    
    if gesture == "rock" or gesture == "paper" or gesture == "scissors":
        return True
    else: 
        return False 
         
#print isValidGesture('rock')
#print isValidGesture('spock')
         
# Randomly returns one of 'rock', 'paper', or 'scissors', 
# with equal probability 
                         
def randomGesture():
    '''Flesh out the body of this function'''
    r = random.randint(1,3)
    if r==1:
        return "rock"
    elif r==2:
        return "scissors"
    elif r==3:
        return "paper"  
#TESTING
#print randomGesture()
#print randomGesture()
#print randomGesture()

# Returns True if the first gesture beats the second gesture, 
# i.e., if the first and second gesture are rock/scissors or  
# scissors/paper or paper/rock, respectively. Returns False otherwise. 
# The output is unspecified if one or both gestures is invalid.
               
def beats(gesture1, gesture2):
    
    if gesture1 == "rock" and gesture2 == "scissors":
        return True
    elif gesture1 == "scissors" and gesture2 == "paper":
        return True
    elif gesture1 == "paper" and gesture2 == "rock":
        return True
    else: 
        return False 
#TEST CASES 
#print beats("paper","rock")
#print beats("scissors","rock")
#print beats("rock","rock")

# Plays rock/paper/scissors game with your gesture vs. opponent's gesture.
# If both gestures are valid, displays one of 'Tie game!', 'You win!',    
def play(you, opponent):
   
    
    if not(isValidGesture(you)):  
        return "Your gesture " + "(" + you + ")" + " is invalid"
        
    elif not(isValidGesture(opponent)):
        return "Opponent's gesture " + "(" + opponent + ")" + " is invalid" 
        
    elif you == opponent:
        return "Game is a tie!" 
        
    elif beats(you,opponent):
        return "You win!"
        
    elif beats(opponent,you):
        return "Opponent wins!"
   
#TEST CASES     
#print play('rock', 'paper')
#print play('rock', 'scissors')
#print play('rock', 'rock')
#print play('rook', 'scissors')
#print play('rock', 'sissors')
#print play('spock', 'sissors')

# Plays rock/paper/scissors against a computer opponent that
# randomly chooses a gesture. First displays the choice of the computer,
# and then displays the result of the game. 
                            
def playComputer(you):
    
    #Computer randomly chooses a gesture 
    
    computer = randomGesture()
    
    # The computers choice is displayed 
    
    print "Computer chooses " + computer 
    
    return play(you,computer)

print playComputer("paper")        
print playComputer("paper") 
print playComputer("paper")
print playComputer("rock")
print playComputer("scissors")

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