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- [Narrator] Hi, and
welcome back to the course.

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In this video, we're going to get started

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coding our new project.

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Now, our project is starting to grow,

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and it will do so more and
more throughout this section,

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so it's going to make sense for us

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to start using folders to make sure

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our code is a bit more organised.

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Now, folders in Python
are also called packages

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most of the time.

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So, what we're going to do is
create a couple of packages.

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And there's a minor difference

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between a package and a folder

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and we're going to see that in a moment.

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The first thing we have to do is to,

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in our code folder,
right-click here on Atom

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and create a new folder

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and we're going to call this "models".

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And then, outside the models folder...

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So just beside it, we're going
to create another folder,

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which we're going to call "resources".

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Okay, and I put that
inside the models folder,

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so all we have to do is
drag it out and that's fine.

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Okay, so now the models
and the resources folder

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are side by side, not
one inside of another.

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Okay?

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Now, these two things here are folders.

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They're not packages.

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And in Python 3.5, this difference

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starts to make less sense,

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but certainly in Python
2.7 and earlier versions,

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this makes a lot of a difference.

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What we have to do to
make these things packages

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are to create a new file

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and call it "__init__.py".

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Okay?

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And similarly, in the
models, a new file there

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called "__init__.py".

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Make sure that that is two
underscores on each end.

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And all that does is it tells Python

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that it can look inside these
folders for Python files.

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If you don't have the init.py

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and you're using Python 3.5,

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it will most likely work.

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But if you're doing an
older version of Python,

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then it won't really look in those folders

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unless you have the init.py.

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Okay?

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Now the next thing we're going to do is

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we're going to look into the item.py

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and realise that we have a resource.

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And then at the very bottom
we've got an item list

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which is a resource and the
user.py is also a resource

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or should be a resource there as well.

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The UserRegister thing here.

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So, what we're going to do is

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we are going to move the
user and the item files

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into the resources folder.

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We're going to deal with
the class User in a moment.

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That's not a resource, so it
doesn't belong in this folder.

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But the UserRegister class does
belong in the folder, okay?

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So what we've done is...

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I'm going to close all these tabs.

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...is we've moved the
item and the user files

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into the resources folder

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because they mostly contain resources.

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We're going to move the
class User out of here soon,

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but not just now.

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In the next video.

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Okay, so now we've moved these things

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into the resources package, rather.

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I've been calling it folder,
but really it's package.

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Now we have to make sure
that the other files

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know where these files have moved to.

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So let's go into the app.py

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and notice that here
we're importing from user

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and that just looks at
the user file beside app,

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but that no longer exists.

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Now it is resources.user.

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And that's going to look
in the resources package

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and find the user file.

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Okay?

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And the same thing for resources.item.

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It's going to look in
the resources package

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and then in the items file.

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And that's all the changes
we have to do in the app.py.

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But remember we've also got security.py

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which imports user, so we
have to make sure to add

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resources.user there as well.

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An interesting thing
though, the User class

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that we've been talking
about is not a resource.

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The UserRegister class is a resource.

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So, once again, the User
class is not a resource.

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The UserRegister class is a resource,

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so we know the User class doesn't belong

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inside the resources package, and...

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But it is there for now,
so we have to make sure

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to import it correctly
from our security file.

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Okay?

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That's everything for this video.

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Do make sure to go to Postman

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and verify this all works

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just as it did in the last section.

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We're not going to do that here

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because we've not actually changed any...

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things that our code does.

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We've only really move things about.

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So, believe me, it does work

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and in the next video,

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we're going to continue
improving this code.

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So I'll see you there.