Building Data-Driven Web Apps with Pyramid and SQLAlchemy Transcripts
Chapter: Chameleon templates
Lecture: Launching an existing project
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Alright so let's write some code and let's interact with these templates here. So lets go over here to our get repository and in chapter five templates
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I'm going to start on this which is right now the same as the starter code, but obviously when I'm done
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it's going to be whatever we did during this chapter. So what we want to do is is we want to take this starter site that we created
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this Py PI site we created in the previous chapter and I want to do interesting stuff with the templates.
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Because we really just ran the cookie cutter before we could do that again but I do want to take this opportunity
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to show you how to take an existing pyramid web app and get it set up and ready to launch in PyCharm. So there's a couple of things we could do.
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We could open in PyCharm and use some of the UI tools or we could use the command line and then open in PyCharm. That's what I like to do.
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Whichever you're more comfortable with just go with that. So what do we need to do to get this started?
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This will basically be the same thing you need to do every step along the way that you want to launch and run something you've gotten from GitHub
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for these projects, so it's worth going over. So what I'm going to do is I'm going to go to the folder that has
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a production and development.ini in there. So I want to cd over there like that, and I want to make sure there's no hidden files.
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We have no hidden .env or anything. We'll call it venv so it doesn't hide. It will be more obvious for examples. We got to do just a couple of things.
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We need to create a virtual environment so that's Python3 -m venv. In Windows, you can't put the 3 but you got to make sure it's Python3
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that is Python in the path. It's a little trickier. Really wish they would unify that but it is what it is. Okay, so when I do that
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and then we're going to run, we're going to activate it so we're going to say source. Sometimes you'll see people say. It means the same thing.
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source venv/bin/activate There's the prompt. It should change and again which or where Python. It should be that one. It's good.
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Once we've activated it, then the last thing to do is simply to run the setup so it would say Python setup.py develop.
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Let it install and everything and we're good to go. Great, with that in place, we can put away our terminal.
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Now, I want to open this directory in PyCharm. On Windows and Linux, you have to go open PyCharm, and say file open directory and browse here.
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On Mac OS, there's a little treat. I can drop this folder here and it will just open that directory. And start PyCharm.
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All right, so a couple of things happened. Let's expand this out here. PyPI templates. Ah, no, that is not the template folder.
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I guess the name kind of freaked out so you can come over here on marked directory and mark it as that. And right click here.
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Save marked directory as template. While we're at it, might as well go ahead and right click and mark directory as resource route.
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We'll see where that makes sense later but those two things are good. Okay, so this is up and running and we can actually run it.
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Notice it's already detected this. Let's see if it's using the right virtual environment. Click here. It looks like it is.
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Could ask which Python or where Python depending on your OS and yeah, that looks like the one we want. So, okay, everything's great.
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We should be able to, once it's done indexing, click this. Here we have it. Same app, you can see here's the one from before.
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Here's the one that we got from Cookiecutter. Okay, great, so looks like everything is up and running. If you get an error that the port is in use
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that means it's already run it somewhere else. A nice little trick, notice it's running here if I try to run it again, it'll crash.
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It says it's already in use so a quick little trick we can go over here to Edit Configurations, and say only let one of these run.
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That way, if I try to run it instead of just running another it's going to rerun this one here. So, we can just rerun it, rerun it.
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That's super helpful. Okay, so that's what we did to get this up and running in PyCharm. We went there, we created the virtual environment
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we activated it, we did the Python set up. py develop, and then we opened that directory. The very same directory
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that contains the virtual environment. That's the one we'd open. That's the one with the production and development.ini.
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Now we're ready to go play with the templates and we'll go over this in the subsequent videos and subsequent demos
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but I just wanted to make sure we kind of covered that somewhere in the course. Might as well do it the first time we hit it.