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Python Object-Oriented Python Advanced Objects Emulating Built-ins

Sohail Mirza
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Sohail Mirza
Python Web Development Techdegree Student 5,158 Points
Posted by Sohail Mirza
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Sohail Mirza
Python Web Development Techdegree Student 5,158 Points

why don't we put slots as a argument

When Kenneth creates the Class inventory in the init method(function) he doesnt put slot as a argument. What is the logic behind this, is it because slot is referencing a list. Hope the question makes sense def init(self): self.slots = []

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

It doesn't need to have "slots" as an argument, because on the next line it is being created (as "self.slots") and assigned an empty list to start with.

In this case it happens to be a list, but it's common for an "__init__" method to initialize class attributes which might be of any type.

Sohail Mirza
seal-mask
.a{fill-rule:evenodd;}techdegree
Sohail Mirza
Python Web Development Techdegree Student 5,158 Points
Sohail Mirza
.a{fill-rule:evenodd;}techdegree
Sohail Mirza
Python Web Development Techdegree Student 5,158 Points

Hi Steven

Thanks for your reply. could you please expand what you mean when you said(with a example) but it's common for an "init" method to initialize class attributes which might be of any type.

Thanks

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Here's an example where both a number and a string are initialized:

    def __init__(self):
        self.score = 0
        self.message = "You win!"

This method will have a "score" and "message" attribute, and neither need be passed as arguments.