Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Instant Objects Method Interactivity

Posted by Atte Pihamäki
Atte Pihamäki
4,557 Points

Exception: name 'praise' is not defined

I don't see why this doesn't work. Out of ideas...

first_class.py 
class Student:
    name = "Your Name"
    grade = 24

    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 praise(self)
        elif grade <= 50:
            return reassurance(self)

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

You're close, but:

  • when calling internal methods, the name must be prefixed with "self."
  • the parameter "self" is supplied by the system, it does not need to be passed as an argument

Example:

            return self.praise()