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Solution
6:19Check your work to see if you remembered your OOP vocabulary.
Ready to see my solution?
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Let's dig in.
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The first step was to create
a class called Treehouse.
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So I'm gonna do a couple spaces here.
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And let's do class, and remember the name of
the class should be capitalized, so Treehouse.
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Oops, I need two S's there.
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There we go.
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Okay, inside of our class, we need to add
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a class attribute called product, product,
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and set it equal to
the string coding courses.
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And you know what?
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I'm just gonna copy this, copy, paste.
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Perfect, two steps done.
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Three, add an initializer method
that takes a parameter called name.
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I'm gonna put a space here, and
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our initializer method is our def,
define, dunder init.
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And you can see it kinda adds
some stuff automatically here,
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thanks to my Visual Studio Code.
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And inside, it's going to always
take self and we're gonna add name.
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So number three complete.
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Number four,
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add a name instance attribute set equal
to the parameter being passed in.
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So what we wanna do is set
an instance attribute,
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which are attributes inside
of our initializer method.
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And we wanna set our name
attribute that's being passed in.
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So self.name is our attribute,
instance attribute, and
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we're setting that equal to name
that's being passed in, perfect.
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Number four is complete.
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Number five, we're going to
create a method called learn.
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Let's do that step first.
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Add another space here, def,
and method is called learn.
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All methods inside of classes
will need to take self.
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Inside, the method should return
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a string, so let's set that up.
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Return, have a string.
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It needs to contain the name
instance attribute.
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So you would get something
like Tim is learning to code,
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where Tim is the name being
passed into our class.
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So I'm gonna copy our
string here actually.
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We'll just replace this.
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Okay, and Tim, I forgot,
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it's going to give us the funky.
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If you notice that, it's kind of hard
to tell, it's the same thing up here,
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I'm gonna have to change those, but
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it's actually a different
type of quotation mark.
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That happens sometimes when you copy and
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paste from like a Word doc
into your coding file.
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So you can see when I change it to
what I usually use for double quotes,
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it shows something different.
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So just as a heads up, make sure you
have your right quotations in there.
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Okay, with that fixed,
now we can get back to it.
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So I'm gonna turn this into an f string
because we need to add this variable,
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our instance attribute, into our string.
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So that when we create a class and
we pass in a name,
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that is what will be passed into this
method and printed out to the screen.
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So we need our brackets.
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And then to access our instance attribute,
we do self dot,
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and you can see up there at the top,
it's already got it for us.
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So I can hit Enter, name, and you can
see it says variable name, perfect.
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Now number six,
create an instance of the class and
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save it to a variable named my_treehouse.
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Pass in your name as the name parameter.
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All right, so let me get out of our class,
give a little space here.
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Variable needs to be called my_treehouse,
set it equal to an instance of the class.
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So we're gonna call the class just
like we would call a function.
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And then you can see it's looking for
a name,
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it's giving us a hint here
in Visual Studio Code.
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Because I need to pass
in that name variable,
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it's going to look for
it because it's required, right here.
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So I'm gonna pass in my name,
which is Megan.
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And then our final step, call your
learn method and print out the result.
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So calling our method, we need to do,
I'm just gonna use our
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variable because that is equal
to our instance of our class.
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And then to call our method, .learn,
and you can see it pops it up.
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Remember, learn is our method, and
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it even tells you right here when you
highlight over it in Visual Studio Code.
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And then it automatically popped in the
parentheses for us because it's a function
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that we're going to call,
a method is a function inside of a class.
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Now, this is going to return something,
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which is why I'm asking
you to print it out.
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So I'm gonna wrap this
in a print statement,
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Hit Save, and now I can run my file.
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So python, I'm on a Mac, so I have to
do 3 cuz I have a couple different
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versions of Python on my computer.
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And then the file name,
which is oop_practice.py.
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Hit Enter, and you should get your string.
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So I pass in Megan as my name, which is
set as my instance attribute self.name,
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which is being used inside of this
method which returns this string.
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And we're calling that method down
here and printing it all out,
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which is getting sent to our console,
Megan is learning to code.
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I hope you enjoyed the OOP
vocabulary practice session here.
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Keep practicing, keep working on your OOP,
and it'll definitely start to stick.
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