TypeError: randint()只接受3个参数(给定4个)

My code :

我的代码:

import random
name=input("Welcome to this Arithmetic quiz,please enter your name:")
number1=random.randint(1, 50)   
number2=random.randint(1, 50)      
oper=random.randint('+', '-', '*')     
input('question 1 is:'+str(number1)+'oper'+str(number2)+'=')
import random
name=input("W