Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Object-Oriented Python Instant Objects Method Interactivity

Aiden Li
Aiden Li
9,043 Points

What am I doing wrong?

it says that praise() takes up 1 positional argument while 2 were given... what does that mean?

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:
            Student().praise()
        else:
            Student().reassurance()

1 Answer

boi
boi
8,670 Points

Look at the code 👇

class Student:
    name = "Aiden Li"

    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)

If I tell you, use the praise method and the reassurance method, you would first make an instance of the Student class like this

>>> aiden = Student()

Now aiden is an instance of class Student, to use the methods you might go something like this;

>>> aiden.praise()
"You inspire me, Aiden Li"

>>> aiden.reassurance()
"Chin up, Aiden Li You'll get it next time!"

So now, bring the feedback method into picture;

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:
            return self.praise() 👈# self.praise() = aiden.praise(), same like above examples.
        else:
            return self.reassurance() 👈# self.reassurance() = aiden.reassurance(), same like above examples.

You have to call them by using the instance, not the class