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You know object-oriented
programming is a way to structure

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your code into groups of properties and
behaviors.

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But what does that look
like in Python code?

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Let's use our car example to build out an
object, or class as it's called in Python.

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Use the workspaces attached to
this video to follow along.

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You can also download the file and
use an IDE of your choice if you'd rather.

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In Python objects are created
using the class keyword and

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the name of your class
with a colon like this.

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We're naming our class, Car.

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Always remembered to try and
name things descriptively when coding.

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Classes, functions, variables, etcetera.

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Inside of our class,
we're just going to add, pass.

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So Python knows to keep moving
instead of giving us an error.

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If we don't have pass inside of our class,

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when we run the file,
Python gives us a syntax error.

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Unexpected end of file while parsing.

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You may also see a class
written like this,

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with a set of parentheses
after the name of the class.

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Classes can take arguments.

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We won't get into this idea called
inheritance in this course.

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But I wanted to make sure you know
that a class can be written with or

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without the parentheses, in case you
come across it out there in the wild.

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Classes are kind of like a factory.

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They hold all of the information
about an object like a blueprint.

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When you use your class to
create an object in Python,

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it's called instantiation.

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And the object itself
is called an instance.

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Let's create one now.

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You create an instance of class
car like you would a function.

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Use the name of the class
followed by parentheses.

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You can also save
the instance to a variable.

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Now I know our class
doesn't have a lot to it.

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Well, it has nothing to it right now.

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But we can still check to
see if we made an object.

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Let's try printing out our instance.

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And let's also check its type.

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print(my_car), print(type(my_car).

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The first message shows we created
an instance of our car class.

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It's an object at this location in memory.

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The second message tells us
our objects type is class car.

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Cool.

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There's also a way to check if
something is an instance of a class.

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You can use a built-in
function called isinstance,

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and pass in the object you want to check.

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And the class you want
to check it against.

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It returns a Boolean value
telling us whether or

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not the instance is
an instance of the given class.

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Print(isinstance(my-car and

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Car with a capital C for the class.

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Run the file.

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Our example here is pretty obvious but
it might come in handy later on.

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I've just thrown a lot of new terms and
information at you.

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So let me recap.

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In Python, you create a blueprint for

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your object using the class keyword,
the name of your class, and a colon.

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When you create an object using your
class, it's called instantiation.

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The object you've created
is called an instance.

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You can use print, type, and isinstance to
see if you've correctly made an object.

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Try creating a few empty classes of
your own, then create instances of them.

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Check your work using print,
type, and isinstance.

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Keep up the hard work Pythonistas.