Why is my random function not working? How would I look at the file the error is referring to? [closed]

I was wondering why I am getting this error message as I am unable to figure it out due to it being from a file separate from my own.

      range1 = input("Please enter the start of your random number range")
      range2 = input("Please enter the end of your random number range")
      num2Int = random.randint(range1,range2)