All right, let's write these last two functions.

They're gonna be very similar, they're basically just mirrors of each other.

And so again I'm going to do these up here near the top,

just because they're not involved in a lot of the stuff.

So flask_template_prepare will take a string, and

we're gonna just do a bunch of transforms to the string.

So we're gonna do re.sub.

And we're going to escape any opening braces and any percent signs.

And then we're going to replace that with a less than and a percent sign.

We're gonna do that for all of string.

And then I can actually copy this and I'm gonna do, I need four.

Three, four.

Okay, on the second one here, we're gonna reverse this and

we're gonna do a percent sign and then a closing curly brace.

And that would go to a percent sign and a greater than symbol.

And then here we're gonna do two of those, which would go to two of these.

And here we'll go to two of those, which would go to two of these.

So we're basically just swapping each of these things around.

So now for, and we need to return the string.

So now for flask_template_repair,

we wanna do basically the same work but wanna do this in reverse, right?

So let's actually just copy this.

This might be a little faster.

It might not be too.

I'm not sure.

So here, let's just say that we're gonna take and turn that

into that.

And we actually shouldn't need to root.

We might need to escape these.

We shouldn't need to escape these over here.

So here we're going to do that and that goes to that and that.

That and that goes

to that and that.

And finally greater than, greater than goes to close close on curly braces.

So yeah.

So less 10% goes to {%, greater than goes to %} less than and

less than goes to {{ and greater than greater than goes to {{ and

greater than greater than goes to }} and return the string.

So for both of these it's just a bunch of reg x substitutions,

nothing ridiculously crazy.

We're just taking brace percent combos, turning them into chevron percent combos.

Double braces and two double chevrons, and

then we undo those things by swapping them back out.

We're already using them in our create_files function,

but we're not using create_files yet.

So we should create_files and we can do that right here.

We can do create_files and we wanna pass in the project_root,

the project_slug, and the project_name.

Now, assuming everything is done correctly, we should be able to use this.

So let's go ahead and test it out.

So python3 builder.py, I want to do this in

users/Kenneth/Projects/files_systems/de- mo/.

I wanna call this Demo Project, I'm gonna do this with a space in name now.

Says it created it, let's go over here and look.

We have demo, we have demo project, we certainly have thing.

I'm wanna look at this in here a little easier.

So that's demo_project, so let's look at app.py.

Yeah, that looks like our app.py.

We have the index.html and everything.

Cool, requirements has everything in there.

Let's look at the index template.

We can see that we have our demoproject.css, demoproject.js and

we have the correct curly braces and everything, so that's nice.

And if we were to look in say,

static css, demo_project.css, we have the demo project project.

Great, there's all of our stuff.

If we wanted to, we could install Flask and we could run our app right now, and

it would all work.

I'm sure you've seen places, and

I know I pointed a few, where this project could be improved and expanded.

You can add a licensed feature, so people can pick MIT, GPL,

BSD, or whatever license they wanted.

You can ask for their legal name, and

put it in the copyright notice, with their name and the date into each of the files.

You can create a placeholder readme file, for

the user to fill out with information about their project.

I'm sure there are many other improvements you all will come up with that I haven't

mentioned or even thought of.

If you do, share it in the community and let me know.

Thanks for learning about using Python to control your file system with me.

I know this is an area that I personally hadn't explored too much until recently,

but it's a really useful part of Python and very powerful.

Python gives me more and more reasons to use it every day.

I'll see you all next time.