from random import random

def main():
    printIntro()
    probA, probB, n = getInputs()
    winsA, winsB = simNGames (n, probA, probB)
    printSummary(winsA, winsB)
    Summary(shutoutsA, shutoutsB)

def printIntro():
    print("THis program simulates a game of racquetball between two")
    print('players called "A" and "B". The ability of each player is')
    print("the player wins the point when serving. Player A alwyas")
    print("has the first serve.")

def getInputs():
    #Returns the three simulation parameters
    a = float(input("What is the prob. player A wins a serve? "))
    b = float(input("What is the prob. player B wins a serve? "))
    n = int(input("How many games to simulate? "))
    return a, b, n

def simNGames(n, probA, probB):
    #Simulates n games of racquetball between players whose
    #   abilities are represented by the probability of winning a serve.
    #Returns number of wins for A and B
    winsA = winsB = 0
    for i in range(n):
        scoreA, scoreB = simOneGame(probA, probB)
        if scoreA > scoreB:
            winsA = winsA + 1
        else:
            winsB = winsB + 1
    return winsA, winsB

def simOneGame(probA, probB):
    #Simulates a single game of racquetball between players whose
    # abilities are represented by theprobability of winning a serve.
    #Returns final scores for A and B
    serving = "A"
    scoreA = 0
    scoreB = 0
    shutoutsA = 0
    shutoutsB = 0
    while not gameOver(scoreA,scoreB):
        if serving == "A":
            if random() < probA:
                scoreA = scoreA + 1
            else:
                serving = "B"
                
        else:
            if random() < probB:
                scoreB = scoreB + 1
            else:
                serving = "A"
        
    return scoreA, scoreB

def shutout(scoreA, scoreB):
    shutoutsA = 0
    shutoutsB = 0
    while simNGames(probA, probB):
        if scoreA == 0:
            shutoutsB = shutoutsB + 1
        if scoreB == 0:
            shutoutsA = shutoutsA + 1
    return shutoutsA, shutoutsB
    

def gameOver(a, b):
    #a and b represent scores for a racquetball game
    #Returns True if the game is over, False otherwise.
    return a==15 or b==15

def printSummary (winsA, winsB,):
    #Prints a summary of wins for each player.
    n = winsA + winsB
    print("\nGames simulated:", n)
    print("Wins for A: {0} ({1:0.1%})".format(winsA, winsA/n))
    print("Wins for B: {0} ({1:0.1%})".format(winsB, winsB/n))
    
def Summary (shutoutsA, shutoutsB):
    print(shutoutsA)
    print(shutoutsB)


if __name__== '__main__': main()

Error:
"Traceback (most recent call last):
File "C:/Users/kongurinn/Downloads/CS 1400/Exercise #9/rqtballPractice.py", line 87, in <module>
if __name__== '__main__': main()
File "C:/Users/Kongurinn/Downloads/CS 1400/Exercise #9/rqtballPractice.py", line 8, in main
Summary(shutoutsA, shutoutsB)
NameError: name 'shutoutsA' is not defined"

def shutout(scoreA, scoreB):
    shutoutsA = 0
    shutoutsB = 0
    while simNGames(probA, probB):
        if scoreA == 0:
            shutoutsB = shutoutsB + 1
        if scoreB == 0:
            shutoutsA = shutoutsA + 1
    return shutoutsA, shutoutsB

def function1(fielda, fieldb):
    print('fielda: {}, fieldb: {}'.format(fielda, fieldb)

def function2():
    field1 = 5
    field2 = 3
    function1(field1, field2)

if __name__ == '__main__':
    function2()

Output:
fielda: 5, fieldb: 3