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name in the house like literally where
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are you going to put them if you want to
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remember the name in the house for this
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student you've got to be able to store
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those values somewhere and how do you
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store them in the current object that
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has just been
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instantiated well the authors of python
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decided that the convention is going to
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be that this init method also semi
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secretly takes a third argument that has
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to come first by convention it's called
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self but you could call it technically
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anything you want but the convention is
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to always call it self and self as its
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name implies gives you access to the
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current object that was just created
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created what does that mean again now on
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line 14 now that it's moved down a
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little bit this line here is a
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Constructor it constructs a student
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object but there's nothing in that
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object initially there's no name there's
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no house but the object exists in the
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computer's memory it's up to now you to
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store the name and the house inside of
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that object how do you do that well
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python will just automatically call this
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init method for you and it's going to
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automatically pass in a reference to a
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an argument that represents the current
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object that it just constructed in
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memory for you and it's up to you to
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populate it with values and what this
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means is that inside of your init method
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you can literally do self. name to
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create a new attribute AKA an instance
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variable inside of that otherwise empty
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object and put this name inside of it it
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allows you to do self. house and store
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that value of house now you could call
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these things anything you want they
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could be n they could be H as before
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four but that's really not very self uh
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explanatory much better to do this kind
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of convention self. name equals name
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self. house equals house and this is
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like installing into the otherwise empty
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object the value name and house and
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storing them in really identically named
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instance variables in the object and
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again an object is just an instance of a
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class now I know that was a lot of
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vocabulary that's a lot of weird syntax
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so any questions on this init method
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whose purpose in life again is to
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initialize an otherwise empty object
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when you first create it so what is the
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difference between the init method and
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default Constructor a good question so
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in other languages if you programmed
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before for instance Java there are
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functions that are explicitly called
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Constructors that indeed construct an
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object they initialize it with values
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python technically calls this init
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method the initialization method it
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initializes the value it's online 14 uh
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line 15 now of my code if I scroll back
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down that I'm technically constructing
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the object it turns out there's another
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special method in Python that we won't
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talk about in detail today called
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underscore uncore new underscore
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underscore that actually handles the
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process of creating an empty object in
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memory for us but generally speaking you
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the programmer don't need to manipulate
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the new function it just works for you
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instead you define your own init method
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here an init function inside of your
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class and that method initializes the
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contents of the object so there's
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technically a distinction between
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constructing the object with new and
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initializing it with in it but in the
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world of python you pretty much only
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worry about the in it method python
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generally does the other part for you a
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good question others uh what about if
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you want to store more than one name or
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more than one house a good question if
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you want to store more than one name or
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more than one house you can do this in
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different ways you could create other
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attributes technically called instance
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variables like self. name one self. name
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two but we've seen in the past that that
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is not a very good design just to have
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multiple variables to store multiple
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