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Python Object-Oriented Python Instant Objects Your first method

Nancy Melucci
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Nancy Melucci
Courses Plus Student 36,143 Points
Posted by Nancy Melucci
Nancy Melucci
Courses Plus Student 36,143 Points

What is an "instance attribute"?

Can anyone give me a hint?

I know what an instance is, and I know what an attribute is. I am not familiar with this term and I can't get past this step without being able to interpret it.

Thanks.

first_class.py 
class Student:
    name = "Nancy"

    def praise(self):
        return "You didn't screw up as badly as usual,  {}".format(self)

Nancy = Student()
Nancy.praise()

5 Answers

james south
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james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

self.name is correct. that is the argument for format. then you just need to delete the last two lines because the autograder will take care of that stuff. ...[submits your code]... actually you don't even have to delete those lines, i just passed it simply by passing in self.name as the argument to format.

james south
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.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

you don't need to create an instance or call the method, the autograder does that, and apart from that you are very close, it's just your argument to format is incomplete....use dot notation to access the required attribute of self that goes in the {}.

if our class was bank accounts, each instance would be an individual account. a class attribute might be the routing number, common to all accounts, while an instance attribute might be the individual account numbers, each account having a different and unique number.

Nancy Melucci
PLUS
Nancy Melucci
Courses Plus Student 36,143 Points
Nancy Melucci
Nancy Melucci
Courses Plus Student 36,143 Points

I have to confess that I still don't understand how I need to change this code. Are you saying remove everything except the praise method itself? Where exactly do I add the code to access "name"?

I feel dumb. But I really don't know where to add the access for the attribute. I tried using self.name (I've seen this online) but I keep failing the challenge. What the instructor does with .format is somewhat different (there's a boolean test) so I just can't use his template to make this simply return a print message.

Sorry. I wouldn't be asking if I hadn't tried many things to make this work.

Miguel Sánchez
Miguel Sánchez
10,365 Points
Miguel Sánchez
Miguel Sánchez
10,365 Points

Pretty close. You only need to specify the .name in the format method.

class Student: name = "Miguel" def praise(self): return "Have fun, {}".format(self.name)