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eventually we added in things like name
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and house for now let's assume that the
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hat is much simpler than a student and
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it only has sorting capabilities so I'm
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not going to even pass any arguments
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there too indeed let me assume that the
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Sorting Hat has one Function One method
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in inside of it called sort and so if I
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do hat. sort quote unquote Harry let's
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propose that that prints out what house
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that student should be in so that's it
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I'm going to encapsulate that is tuck
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away inside of a hat class all of this
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requisite functionality and I'm going to
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print out onto the screen what hat uh
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what house Harry belongs in all right
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now I think I need to get into the weeds
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of actually
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initializing this class well let me go
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ahead and do this if I don't care to
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parameterize hat I just want to for
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instance uh sort values let's go ahead
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and Define this function sort first so
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let's define sort as taking a first
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argument self which is always going to
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be the case when defining an instance
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method as before but the sort method
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clearly takes one argument from the
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programmer me namely the student's name
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and again we've seen this dichotomy
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before even though I'm trying to pass in
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one argument when I Define the method
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it's got to take that many arguments
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plus one more self which is always going
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to be automatically passed in by python
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first all right what do I want to do
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well let's go ahead and do something
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like this uh print quote unquote or
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rather print this name how about quote
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unquote is in quote unquote some house
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I'm going to again use some placeholder
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code for myself because I'm not quite
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sure how to finish implementing this
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Sorting Hat but I think that's enough to
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just test where my code is at now let me
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go ahead and run python of hat. and hit
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enter and it looks like indeed Harry is
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in some house we're not done yet because
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it's clearly not doing anything
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interesting but it at least is running
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correctly with no errors well let's go
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ahead now and decide where uh what house
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Harry should actually be in by
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introducing a bit of Randomness and
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choosing a house randomly well I can do
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this in a few ways let me go ahead and
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do this I need to have a list of houses
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somewhere so where can I put that I
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could solve this problem in different
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ways let me propose that I do this let
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me Define a method called init as I've
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done before that takes in self but no
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other arguments and whenever the Sorting
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Hat is instantiated let's do this let's
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create a houses instance variable plural
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that equals this list Gryffindor comma
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Hufflepuff comma uh Ravenclaw comma
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Slytherin so the exact same list that
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we've used before and I'm storing it in
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an instance variable inside of this
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class I'm not taking any arguments
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Beyond self in it but I just need this
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list of values somewhere for instance so
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what can I do here well let me go ahead
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and replace some house with the actual
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house well what could I do here well I
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want to put a house there well let's go
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ahead and create a variable called house
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and if you think back to our discussion
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of libraries in the random module there
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is a function called choice that if you
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pass in in a list of choices like self.
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houses that will pick a random house out
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of those four and then on line seven I
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can pass it in if I want to tighten this
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up let me just go ahead and highlight
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that code get rid of the variable it's
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technically unnecessary and because the
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line of code is still pretty short I'm
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okay with just putting it all in one
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line but I could certainly use the
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variable like I did a moment ago so what
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have I done in my init function I have
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defined a initialization of the object
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that stores in self do houses the list
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of four houses and then in sort I'm
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accessing that same list but I'm
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randomly choosing the set of houses
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there now why have I done it in this way
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this too is General convention anytime
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