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Python Object-Oriented Python Instant Objects Method Interactivity

Posted by Amit Yadav
Amit Yadav
4,662 Points

How To define methods with multiple arguments in python

What is wrong with feedback method here.

first_class.py 
class Student:
    name = "Your Name"

    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()   

stu = Student()
stu.feedback(80)

2 Answers

Alex Koumparos
seal-mask
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points
Alex Koumparos
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points

Hi Amit,

Your problem is when you call self.praise() and self.reassure().

You are calling these methods from your feedback method. These methods hand back (return) a string to your feedback method, but your feedback method doesn't do anything with the values it is receiving from those calls. Your feedback method is supposed to return those values. Because you have no explicit return statement in feedback, it returns None which is why you are getting the error message "Exception: argument of type 'NoneType' is not iterable".

Hope that helps

Alex

Amit Yadav
Amit Yadav
4,662 Points
Amit Yadav
Amit Yadav
4,662 Points

thanks a lot, Alex.