Box and I type terminal, and this terminal came up. Pwd is a print working directory. This is effectively the same user interface as Linux, and most servers are done with Linux. Our goal is to install a Python. The first thing to do is to check to see if you've already gotten stalled because you can type the command python dash, dash version and see that we have Python 2.7. Now if you actually just say Python, you'll go into the shell and you'll get some really bad warnings because Python 2, as of the recording of this moment is actually out of support. If you ever get into this triple Chevron prompt, you just say quit, close paren, and that will get you out of it. Because macOS used Python, let me do a clear here. Because Python is used inside macOS and they use Python 2, we tend to have to install our own copy of Python and it will show up as Python 3. Now if you just type Python 3 minus, minus version and you already have a python, then don't bother installing it. I don't want to install the developer tools so I'm just going to say Cancel right here. It might be part of that, but I just rather install the official Python distribution. We're going to go to python.org and click on ''Downloads''. It knows, it's already figured out that on my Mac so I'm going to download Python 3.11. You just download the latest one, you'll be fine. That download is now completed. Going to open it up and click on it and we're going to go continue, continue, continue. I agree. Now it's installing. It's showing me a folder with Python in it. I'm going to click ''Close'' my downloads and so it seems to be installed. We'll go ahead and move the installer to the trash. Then I'm going to come over here and I'm going to start python 3 minus, minus version. Let's close this and open terminal again. Python 3 minus, minus version. There we go. You notice I had to close my terminal and open it again because this shell needed to see the new software so you can do that. You won't have to do that again. There's a command you can type that might fix that by just say rehash. That says, look, those doesn't even have it so I'm wrong there. But eventually you wanted to see Python 3 minus, minus version. Away we go so you have Python installed. The next problem you need is you need a programmer editor. You don't want to use TextEdit. Mac comes with this thing called TextEdit, don't use this because it saves in a weird format called RTF so don't use TextEdit, just don't use it. You've got to find a programmer editor. If we take a look at Python for everybody, we have this page called editors. Now the best editor depends, you may already have an editor. If you have an editor, keep it. We have a couple of recommendations, brackets, which is a super simple one VS Code, which is really nice, but the installation can be a little tricky. For Beginners, I'm just going to recommend brackets. But if you have one, you like one you like Sublime, over the years that we've been teaching this course, there's just been so many editors that have come and gone. I probably should put a little thing on here that says all the editors that we don't use anymore, or all the recommended editors that we don't use. Brackets io is for now, I like it, it's open source, it's free, it looks to me like it's going to stay free and open source and it works on Windows, Mac, and Linux and so I like that, so I'm going to download that. We're going to open it. Just click on here, open it. Here is the bracket GitHub, which is nice. I'm just copying it from the brackets code into my application folder and the applications is where on the Mac you put things that are going to be run. Now I'm going to just close this. I've got a couple of things on my desktop here. That's the brackets mount point. Now to run brackets, I'm going to go up to my search and type brackets and click brackets. I'll go ahead and hide this page. Yes, it's wanting to make sure I'm not installing some bad stuff. Here we have brackets. It's a nice simple editor and it starts up. I'm going to close this window and I am going to create a new file. I'm going to say print "hello world" then I'm going to save this file. One thing that you're going to have to keep track of is where you're at. Users admin, this desktop is in user's admin desktop, so I'm going to change directory into desktop, pwd print working directory so you see in user's admin desktop. I'm going to make a directory mkdir py4e. Then I'm going to change into that directory. Like I said, it's a good thing for you to learn all these things. Now I'm in the folder py4e. If I look on my desktop, I've got this folder py4e that currently has nothing in it. This terminal and this folder are the same thing. Now I'm going to File, Save As and I'm going to go into my desktop and go into py4e and I'm going to call this file hello.py and I'm going to save it. Now at this point it knows it as Python file and brackets knows what Python syntax highlighting is, so that's quite nice. If I look in py4e, I see there is a file. If I look in it in terminal, and I say ls minus l, I see that final as well. To run that file, I say python3, hello.py. With that, I have created my first Python program, I've installed a text editor, I've installed Python and created my first program. I hope that you found this useful. See you in the rest of the course.
