class HelloWorld:
    def __init__(self):
        print("hello World' Just one more time")
    def __del__(self):
        print("Good bye")
    def performAverage(self, val1, val2):
        average = (val1 + val2) / 2
        print("The average of the scores is  : ", average)

def main():
    world = HelloWorld()
    score1, score2 = input("Enter two scores separted by a comma : ")
    world.performAverage(score1,score2)

main()

첫번쨰 질무은 교수님꼐서는 print " " 쓰시는데 저는 ()를 안넣으면 오류가나는데 이유가궁금합니다.

두번쨰질문은

Traceback (most recent call last):
  File "C:/Users/LG/PycharmProjects/untitled/11.py", line 17, in <module>
    main()
  File "C:/Users/LG/PycharmProjects/untitled/11.py", line 13, in main
    score1, score2 = input("Enter two scores separted by a comma : ")
ValueError: too many values to unpack (expected 2)

수업시간같이 똑같이 타이핑했는데 이런오류가 나는데 어디서 잘못한건지 알려주시면 감사하겠습니다

좋은강의 해주셔서 감사합니다.