Effective PyCharm Transcripts
Chapter: PyCharm Projects
Lecture: Creating projects
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so I could just go to PyCharm right here, see here's a couple of projects I've already had open and I could just click new
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project or I could even say get from Git Version Control but I want to have
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something come from Git and then work on different projects nested within their and that's not
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gonna work perfectly and I want to have a little bit of structure from the GitHub
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repository. So in general you might just start a new project or open from Git
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but we're going to go to the GitHub repository up here and we're gonna clone this
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onto the desktop. So over the desktop give it some clone cd calling it this whole long name, I'm just gonna call it 'course'.
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Perfect, perfect. And then here you can see we have our git: (master).
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I'm gonna actually use a different branch in just a moment every now and then people ask me how do you get this prompt?
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This is 'Oh-My-Zsh'(Z shell), absolutely not required but it is kind of handy now
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I don't want to work in this branch here so I'm gonna say 'git check out'. now. Normally would do this in PyCharm.
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I want to give you the fresh experience. So I got to get things set up to be this fresh experience. Now with
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'Oh-My-Zsh' you can actually hit tab and it will give you all of the
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branches which is awesome, you're gonna just be working with the default branch but as I'm updating this course from the previous version.
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I don't want to break it while it's in flight and being created. So here we go. Now We can go over to our project folder here and
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notice we've got our demos, we've got projects and there's a bunch of cool stuff
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we're gonna be working on but we're at our first project and in here you can
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see it's effectively empty. So what we're gonna do is we're going to create a new project and PyCharm over there.
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We have new project and notice right away we got a bunch of options. It suggests maybe it should go here.
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I'm going to propose that maybe somewhere else would be better. So I'm gonna drag this folder over here so Mac os can find it, in this
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project here I'd like to create the project. That's great. And it's going to create what's called a virtual environment.
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You may be familiar with these if you're not, these are really important building blocks to keep our projects separated and clean the ideas instead
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of using the system Python, with all the libraries that might be installed,
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we're gonna create basically a copy an isolated empty fresh version of Python using a virtual
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environment that then when we install libraries to it's just dedicated to that project.
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So PyCharm is proposing to automatically do that for us and I'll say, great, you can do that if we actually had other interpreters,
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maybe we've already created one on the command line or something like that, we could browse to it and PyCharm would detect it.
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If it were there following certain conventions like '.ENV' or '.VENV', for the name. It would suggest that as well as an option,
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it's also proposing to create a main welcome script, which kind of says here's how you run PyCharm. We're not going to do that.
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We're going to start fresh. But you could leave that check if you wish. Your Python is not the only option. We have Django, we have Flask, Pyramid,
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we have Scientific stuff. We even have some front and things like React and Angular but we're going to stick with our pure Python here.
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All right? That should be it. We should be able to get going. To notice right away a couple of things.
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It's looking through all the installed libraries and Python to figure out the auto complete and code corrections and things like that.
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So that takes a moment. But just the first time you open it down here you can see which virtual environment is running this is the interpreter.
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And you also see the GitHub branch that we checked out right there.
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That's all cool. And here's our virtual environment that got created and we're not gonna need our placeholder so we can go ahead and delete that here.
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We have our empty project. We might as well start by creating a file. So let's go over here and create something,
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we'll just call 'hello.py' notice if we go over to the project here, let's say new, There's all kinds of new files we can get,
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it's not just Python, we could create Jupyter notebooks, we could create style sheets, we could create javascript files,
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all sorts of things. Even the funny Gherkin feature file, if you wish, we're gonna start by creating a Python file and I'll just call
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this Hello because we're working in a directory that has a GIT repository somewhere above it is itself a GIT repository. PyCharm says,
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Hey, we can automatically add that to GitHub for you notice it's red over here. We're going to dive into the source control features.
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But I'll just so it doesn't bother us. I'll say sure you can go ahead and add those files.
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It turned green because now it's staged in Git but not yet committed. Okay, so in our Hello World file,
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you know the drill, we're going to do something like print. Hello World as we type it, all sorts of help. Very nice.
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Often the Hello World people perceive this as how do I create the most minimalistic type
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of application that I can, but that's not really the purpose of Hello World. The purpose of Hello World is to prove that the system is set up to run
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some kind of application in this case the Python app. So it'll prove that our virtual environment set up and that we can,
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you know, click this button up here maybe somehow and make it run. So how are we going to do that?
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Well, we'd like to click this looks like a run thing you hover over. It says run but obviously it's great out.
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It's not going to do anything because we could have many Python files. Open PyCharm doesn't know what to do with them.
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What we can do is we can right click over here and we can pick any of these options, run debug or even we could run with code coverage.
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We could profile it, we could do concurrency analysis. All that seems way overkill for Hello World. So we're just going to run it like this.
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Hello World. Perfect there. You have it. You can see that it ran our file here, way out at the end And it ran it using the Python,
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out of our virtual environment. That PyCharm created not the system one. And by the way, if you need to run outside of PyCharm,
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just copy that path. That whole thing there and drop into a command prompt or terminal and boom, off you go. All right. So now that we've run it,
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we've right, clicked and said run this is generated what's called a run configuration up here now says Hello, we can change the name.
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Now, I have a presentation assistant installed, which I mentioned before in the previous chapter.
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But if I click this, it's going to actually pop up this green box that says run Hello via CTRL+R on your current key map or if you're on windows
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or Linux, you can press 'shift + F10' depending on the key map you pick sometimes that's F5. So if I hit that hot key again you can see
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right here. It just keeps running it. But this is something you really want to pay attention to as we work with different
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parts of PyCharm, it will help you learn what the various commands are being called. And sometimes it's not entirely obvious.
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Sometimes, like if I say wanted to reformat this code here, I can go over to code and I could click reformat or I could just hit
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command 'ALT+L'. So sometimes I'll do something like this. You know what happened? Just look at the green box.
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That's what's going on there. One other thing to look at here is we don't need just the one file. Right.
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One of the beauties of PyCharm is it understands many many files. We could have another file and here we could have something like an other method.
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It takes some text and I'll print, print out whatever the other text is.
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Now there's a little squiggly here meaning that the formatting is a little bit off so we'll just let PyCharm fix it.
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So it doesn't look like there's some kind of air. All right. But of course what we're running is our Hello World app over there
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All right. Well, that's the quick introduction to getting started.
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Main takeaways. Virtual environment. Very important if you're in a GitHub repository or some
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other kind of source control, it likely will discover that and automatically integrate that we didn't do anything. This just happened automatically.
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When we want to run a file, we have to go over here and say first create some kind of run configuration so that we can then click here.
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Hit 'CTRL+R' to run it. That's it. We've written a program with PyCharm. Well, I would be too proud of this thing, but still pretty cool!!.