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We're almost there! Let's wrap things up and discuss some ideas of how you can expand this project further.
All right,
let's write these last two functions.
0:00
They're gonna be very similar, they're
basically just mirrors of each other.
0:03
And so again I'm going to do
these up here near the top,
0:06
just because they're not
involved in a lot of the stuff.
0:09
So flask_template_prepare
will take a string, and
0:13
we're gonna just do a bunch
of transforms to the string.
0:17
So we're gonna do re.sub.
0:20
And we're going to escape any opening
braces and any percent signs.
0:23
And then we're going to replace that
with a less than and a percent sign.
0:33
We're gonna do that for all of string.
0:38
And then I can actually copy this and
I'm gonna do, I need four.
0:42
Three, four.
0:46
Okay, on the second one here,
we're gonna reverse this and
0:48
we're gonna do a percent sign and
then a closing curly brace.
0:53
And that would go to a percent sign and
a greater than symbol.
0:59
And then here we're gonna do two of those,
which would go to two of these.
1:04
And here we'll go to two of those,
which would go to two of these.
1:10
So we're basically just swapping
each of these things around.
1:15
So now for, and
we need to return the string.
1:19
So now for flask_template_repair,
1:26
we wanna do basically the same work but
wanna do this in reverse, right?
1:31
So let's actually just copy this.
1:34
This might be a little faster.
1:37
It might not be too.
1:39
I'm not sure.
1:40
So here, let's just say that
we're gonna take and turn that
1:42
into that.
1:47
And we actually shouldn't need to root.
1:51
We might need to escape these.
1:55
We shouldn't need to
escape these over here.
1:56
So here we're going to do that and
that goes to that and that.
2:00
That and that goes
2:04
to that and that.
2:09
And finally greater than, greater than
goes to close close on curly braces.
2:14
So yeah.
2:21
So less 10% goes to {%,
greater than goes to %} less than and
2:24
less than goes to {{ and
greater than greater than goes to {{ and
2:29
greater than greater than goes to }} and
return the string.
2:35
So for both of these it's just
a bunch of reg x substitutions,
2:40
nothing ridiculously crazy.
2:46
We're just taking brace percent combos,
turning them into chevron percent combos.
2:48
Double braces and two double chevrons, and
2:53
then we undo those things
by swapping them back out.
2:55
We're already using them in
our create_files function,
2:58
but we're not using create_files yet.
3:01
So we should create_files and
we can do that right here.
3:03
We can do create_files and
we wanna pass in the project_root,
3:07
the project_slug, and the project_name.
3:11
Now, assuming everything is done
correctly, we should be able to use this.
3:16
So let's go ahead and test it out.
3:20
So python3 builder.py,
I want to do this in
3:23
users/Kenneth/Projects/files_systems/de-
mo/.
3:28
I wanna call this Demo Project, I'm
gonna do this with a space in name now.
3:35
Says it created it,
let's go over here and look.
3:39
We have demo, we have demo project,
we certainly have thing.
3:42
I'm wanna look at this
in here a little easier.
3:47
So that's demo_project,
so let's look at app.py.
3:50
Yeah, that looks like our app.py.
3:54
We have the index.html and everything.
3:56
Cool, requirements has
everything in there.
3:58
Let's look at the index template.
4:02
We can see that we have our
demoproject.css, demoproject.js and
4:05
we have the correct curly braces and
everything, so that's nice.
4:08
And if we were to look in say,
4:13
static css, demo_project.css,
we have the demo project project.
4:15
Great, there's all of our stuff.
4:20
If we wanted to, we could install Flask
and we could run our app right now, and
4:22
it would all work.
4:26
I'm sure you've seen places, and
4:28
I know I pointed a few, where this
project could be improved and expanded.
4:30
You can add a licensed feature,
so people can pick MIT, GPL,
4:33
BSD, or whatever license they wanted.
4:36
You can ask for their legal name, and
4:39
put it in the copyright notice, with their
name and the date into each of the files.
4:40
You can create a placeholder readme file,
for
4:44
the user to fill out with
information about their project.
4:46
I'm sure there are many other improvements
you all will come up with that I haven't
4:48
mentioned or even thought of.
4:51
If you do, share it in the community and
let me know.
4:52
Thanks for learning about using Python
to control your file system with me.
4:55
I know this is an area that I personally
hadn't explored too much until recently,
4:58
but it's a really useful part
of Python and very powerful.
5:02
Python gives me more and
more reasons to use it every day.
5:05
I'll see you all next time.
5:07
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