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Python Object-Oriented Python Instant Objects Method Interactivity

Karen Ku
Karen Ku
2,194 Points
Posted by Karen Ku
Karen Ku
2,194 Points

Exception: argument of type 'NoneType' is not iterable

Goal: Alright, I need you make a new method named feedback. It should take an argument named grade. Methods take arguments just like functions do. You'll still need self in there, though. If grade is above 50, return the result of the praise method. If it's 50 or below, return the reassurance method's result.

What's wrong with my code? l keep getting above the error message though.Please help me find out.

first_class.py 
class Student:
    name = "KarenKu"
    def praise(self):
        return "You inspire me, {}".format(self.name)
    def reassurance(self):
        return "Chin up, {}. You'll get it next time!".format(self.name)
    def feedback(self, grade):
        if grade > 50 :
            self.praise()
        else :
            self.reassurance()

1 Answer

Ryan S
Ryan S
27,276 Points
Ryan S
Ryan S
27,276 Points

Hi Karen,

You need to return the result of the methods.

Good luck.