Building Data-Driven Web Apps with Flask and SQLAlchemy Transcripts
Chapter: Your first Flask site
Lecture: Demo: Creating the starter project PyCharm
0:00 So you saw all the steps on how to create
0:01 a Flask app on the command line, and it took, I don't know
0:05 something like three minutes, or whatever.
0:07 Let's see what we can do with Pycharm.
0:09 So we're going to go and choose Pycharm this time.
0:12 The latest edition is 2019.1.
0:17 We're going to say new
0:18 and we could do pure Python, but we're going to pick Flask.
0:21 Right we're going to put somewhere
0:22 I'll say megasite
0:25 that's com/mega
0:28 its kind of the way we did it before.
0:29 So you'll notice it will just automatically create a new
0:32 virtual environment for us based on Python 3
0:34 with a similar name
0:35 and we've also picked some more settings like Jinja2
0:38 as opposed to Mako or whatever
0:41 and then the templates folder.
0:42 So all this, we just check those off, we hit go.
0:46 See, create a virtual environment.
0:48 It's installing Flask.
0:51 Its written the app.py, almost the same
0:55 you want to be the same, change that to index and up here
0:58 we've got our structure.
1:01 Now this is just the structure
1:02 inside of that working directory
1:04 so I'm not a super big fan of the way that it focus' it
1:07 but this is what Pycharm does, so off we go
1:09 and I guess, just to be fair
1:10 we're going to go and create a few new directories
1:12 like viewmodels, up here hit command n
1:16 and we can have views.
1:21 Here, I think we've got that
1:22 and the other one would be to have a requirements.txt
1:27 and here we have Flask.
1:31 I'll have a requirement-dev, didn't do this before
1:34 but we'll put -r requirement
1:40 and let's just say pytest for now.
1:42 That's not actually something we're going to be using
1:44 at the moment but there it is.
1:45 So here's our app, it's ready to go.
1:47 Its created all the structure and everything we need to do
1:50 and we had to add on that little bit of extra structure.
1:52 I guess we still need to do the
1:55 js and the css and so on here.
2:02 Here we go, now we're good.
2:03 Now if we want to run it, we just click this little go button
2:06 and boom, off it goes. And we click here.
2:09 Hello world! Again, what a theme.
2:12 So down here you can see its done a little bit more
2:14 it set some environment variables
2:16 the Flask app is app.py
2:18 and the environment is development
2:20 and debugging seems to be off right now.
2:23 So we can go and configure those but right now its using
2:26 environment variables and a run configuration.
2:28 There's a couple ways to do that.
2:30 We're going to see another way
2:31 that we can do that in code as well.
2:33 So here you can see we have our development mode
2:35 we can check off debug
2:36 if we want to have it running debug mode
2:41 here we go, we have debuggers active.
2:43 Super, that means if we make changes, like here
2:46 and save them, its going to detect that and auto reload.
2:49 All right so that's how you get started in Pycharm.
2:51 You basically fill out that new Flask app
2:54 and go and you get basically the same structure.
2:57 Of course, if you want to mix and match
2:59 that's what I do actually, you can go
3:01 do all the work on the command line interface
3:02 and then open up the project in Pycharm
3:05 and continue to work from there.
3:06 So that's probably what we'll do for the rest of the course.
3:09 I'll just go over this Pycharm style.
3:11 I think this really helps a lot when you're new.
3:13 As you get more experienced with it
3:15 you want to tweak things just a little bit
3:16 and it'll be a little more comfortable
3:18 to use the command line interface.
3:19 I remember when I was new, I really appreciated all the help
3:23 that Pycharm gave me, like it did here.
3:24 As I got better, and got more experienced
3:27 I kind of wanted to go my own way just a little bit
3:29 so moved over towards the command line side of things.
3:33 Anyway, here you go. Here's how you do it in Pycharm.
3:35 Remember, this actually takes Pycharm Pro.
3:38 There's a free Community Edition.
3:40 One of the big omissions from that
3:42 to help encourage you to pay for it, I guess
3:44 is the whole side of the web world.