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Python Basic Object-Oriented Python Welcome to OOP Adding to our Panda

Dominic Malloy
Dominic Malloy
1,857 Points

Method Challenge Task - Task 2

I'm not sure where I'm going wrong in this task. When I run this in VS Code it produces no errors. Thank you in advance.

class Panda:
    species = 'Ailuropoda melanoleuca'
    food = 'bamboo'

    def __init__(self, name, age):
        self.is_hungry = True
        self.name = name
        self.age = age
    def eat (self):
        self.is_hungry = False
        self.name = 'Bao Bao'
        r = (f'{self.name} eats {self.food}.')
        return r
Jeff Muday
Jeff Muday
Treehouse Moderator 28,717 Points

Asher Orr is correct, and you are correct too!

The Challenge automatic grader is using a unit test based on the output of a regular expression. The regular expression is expecting only a return '${self.name} eats {self.food}.'

So it will mark as incorrect other valid ways of completing this exercise.

The moral of this story is to try a Challenge, if you can't complete it with a reasonable effort then ask the community and move ahead.

1 Answer

Asher Orr
.a{fill-rule:evenodd;}techdegree seal-36
Asher Orr
Python Development Techdegree Graduate 9,408 Points

Hi Dominic!

Check out this error message:

Traceback (most recent call last):
  File "", line 67, in test_results
AssertionError: 'Bao Bao eats berries.' != 'Charles eats berries.'
- Bao Bao eats berries.
+ Charles eats berries.
 : Make sure to use the attributes already in the class. When I create an instance with Charles as the panda's name and change the food attribute to berries, I don't get the right message.

Since the challenge itself will run your code with 'Bao Bao' as the name attribute, you should delete this line:

        self.name = 'Bao Bao'

When I ran your code after deleting that line, I still got an AssertionError (Regex didn't match).

I think it's because the task asks to return string, and not a variable.

Try returning a formatted f-String instead of the variable "r".

Let me know if that works!

Dominic Malloy
Dominic Malloy
1,857 Points

Hi Asher, that worked!. Thank you for taking the time to help.

And thank you for your response Jeff, appreciate it.