1 00:00:00,000 --> 00:00:05,990 Let's take a look at how you can install Python and the Eclipse environment on a Windows PC. 2 00:00:06,000 --> 00:00:12,990 I am using a Windows 7 PC here. This same procedure should work for any kind of modern Windows. 3 00:00:13,000 --> 00:00:18,990 This is the download page for Python 3.1.2. Use the downloader or installer for 4 00:00:19,000 --> 00:00:21,990 whatever version of Python is the latest. 5 00:00:22,000 --> 00:00:25,990 If I scroll down here, you will see that there is downloads available for a 6 00:00:26,000 --> 00:00:29,990 number of operating systems. I am going to pick the one for this Microsoft 7 00:00:30,000 --> 00:00:34,990 Windows box, and I have already actually downloaded this, so I have got that 8 00:00:35,000 --> 00:00:36,990 already in my Download folder. 9 00:00:37,000 --> 00:00:38,990 Let's also go ahead and download Eclipse. 10 00:00:39,000 --> 00:00:42,990 Now in order to install Eclipse, you must have Java installed, and you should 11 00:00:43,000 --> 00:00:45,990 probably have the latest Java installed. 12 00:00:46,000 --> 00:00:50,990 So I strongly recommend that you make sure that your computer has Java, and it's 13 00:00:51,000 --> 00:00:52,990 the latest version of Java. 14 00:00:53,000 --> 00:00:55,990 Windows machines do not necessarily come with Java already installed. 15 00:00:56,000 --> 00:00:59,990 So you need to make sure that you have Java installed before you install Eclipse. 16 00:01:00,000 --> 00:01:04,990 Eclipse is designed to be a development environment for the Java language. 17 00:01:05,000 --> 00:01:08,990 We are using it here to develop in Python because it has a lovely plug-in 18 00:01:09,000 --> 00:01:11,990 available for Python development, and that works really well. 19 00:01:12,000 --> 00:01:14,990 Here, on the download page for Eclipse, you will notice that there are a lot of 20 00:01:15,000 --> 00:01:19,990 choices, and any one of these will actually work. We are going to install the 21 00:01:20,000 --> 00:01:22,990 basic Eclipse Classic. 22 00:01:23,000 --> 00:01:26,990 Most of the time, when you hover over this link here whatever operating system 23 00:01:27,000 --> 00:01:30,990 you are working with, it will get the proper download for your operating system. 24 00:01:31,000 --> 00:01:34,990 If you are not sure, you can select the one that you want from this list over here. 25 00:01:35,000 --> 00:01:37,990 So let's go ahead and get started with the installation. 26 00:01:38,000 --> 00:01:41,990 First, we are going to install Python, and that involves double-clicking on this 27 00:01:42,000 --> 00:01:44,990 installer, and I will say Run. 28 00:01:45,000 --> 00:01:48,990 I'm going to go ahead and Install for all users, and I am going to install it in the 29 00:01:49,000 --> 00:01:52,990 default location, and I want to make a note where that is. 30 00:01:53,000 --> 00:01:57,990 That's Python31 folder, right off of the C disk. 31 00:01:58,000 --> 00:02:01,990 Again, I am going to accept the defaults. It's installing everything, and we want 32 00:02:02,000 --> 00:02:06,990 that, and then it just goes ahead and does its thing. 33 00:02:07,000 --> 00:02:10,990 Now let's go ahead and run IDLE and make sure that it works. 34 00:02:11,000 --> 00:02:17,990 There it is, so now we know that we have Python 3.1.2 installed, and it's working. 35 00:02:18,000 --> 00:02:19,990 Now we are going to install Eclipse. 36 00:02:20,000 --> 00:02:25,990 Eclipse comes to us in a zip file, so I am going to Extract All just to this 37 00:02:26,000 --> 00:02:30,990 default location in my Downloads folder. 38 00:02:31,000 --> 00:02:36,990 Now we have the eclipse folder, so I am just pressing Ctrl+N to open another 39 00:02:37,000 --> 00:02:42,990 Explorer window, and we'll come down here and find Program Files, and I am going to 40 00:02:43,000 --> 00:02:46,990 install it on Program Files (x86) because I don't loaded the 32 bit version. 41 00:02:47,000 --> 00:02:51,990 You can put it in the other one if you want to, and I am just going to drag this over 42 00:02:52,000 --> 00:02:53,990 here and move it to Program Files. 43 00:02:54,000 --> 00:02:57,990 So I don't want it to go in one of these other folders, so I am going to 44 00:02:58,000 --> 00:03:00,990 actually drag it into this part of the window here where it says move to Program 45 00:03:01,000 --> 00:03:05,990 Files, and I will Continue and authorize, and there it is. 46 00:03:06,000 --> 00:03:13,990 I will open this up, and there is eclipse.exe. I am going to pin it to the Start menu. 47 00:03:14,000 --> 00:03:17,990 Now, there it is in my Start menu. 48 00:03:18,000 --> 00:03:24,990 So I can close this window, I can close this window, and I no longer need this 49 00:03:25,000 --> 00:03:28,990 empty folder here. I will just go ahead and delete that. 50 00:03:29,000 --> 00:03:34,990 Now it's time to start Eclipse. There is still quite a bit left to do here. I am 51 00:03:35,000 --> 00:03:35,990 accepting that and running it. 52 00:03:36,000 --> 00:03:41,990 I am going to accept the default location for my workspace. I am going to say 53 00:03:42,000 --> 00:03:45,990 use this as a default so you don't ask me again. And you can put your workspace 54 00:03:46,000 --> 00:03:49,990 wherever it makes sense for you. And now we are running Eclipse but it's not 55 00:03:50,000 --> 00:03:51,990 ready to use at all yet. 56 00:03:52,000 --> 00:03:56,990 First thing we need to do is we need to install Pydev. That's the development 57 00:03:57,000 --> 00:04:00,990 environment for Python. And under the Help menu, you will see there is a 58 00:04:01,000 --> 00:04:05,990 selection for Install New Software, and before we can even type something in 59 00:04:06,000 --> 00:04:13,990 here, we need to click on this Available Software Sites preferences and Add a new software site. 60 00:04:14,000 --> 00:04:19,990 The URL for this is pydev.org/updates. 61 00:04:20,000 --> 00:04:26,990 We are going to call this Pydev, and say OK, and OK. 62 00:04:27,000 --> 00:04:30,990 Then up here, we can just start typing Pydev, and we will see that it comes up, so 63 00:04:31,000 --> 00:04:37,990 we select that, and it says Pending, and then we check on the one that says Pydev. 64 00:04:38,000 --> 00:04:42,990 You probably don't need this Mylyn Integration unless you know that you do, and 65 00:04:43,000 --> 00:04:45,990 if you are using Mylyn, by all means, go ahead and add that. 66 00:04:46,000 --> 00:04:49,990 So now I am going to say Next, and it found it, and so I am going to select that 67 00:04:50,000 --> 00:04:54,990 and press Finish. And now it's installing the Pydev development environment for 68 00:04:55,000 --> 00:04:57,990 Python within Eclipse. 69 00:04:58,000 --> 00:05:01,990 Say OK to the unsigned content warning, and it is strongly recommended - 70 00:05:02,000 --> 00:05:07,990 it says so right there - that you restart Eclipse, and there is no reason not to, 71 00:05:08,000 --> 00:05:07,990 so we will just say OK. 72 00:05:08,000 --> 00:05:13,990 All right, we are getting closer. So now we have some configuring to do. 73 00:05:14,000 --> 00:05:17,990 We are going to open the Preferences, which is under the Window menu, and we are 74 00:05:18,000 --> 00:05:21,990 going to come down here to Pydev and click on the little arrow, and then you 75 00:05:22,000 --> 00:05:27,990 are going to click on Interpreter - Python, and we are going to need to add our 76 00:05:28,000 --> 00:05:28,990 Python interpreter. 77 00:05:29,000 --> 00:05:34,990 So we will click New, and we will click Browse and remember where Python is. 78 00:05:35,000 --> 00:05:39,990 It's under the C drive and in Python 3.1, and there is our Python interpreter. 79 00:05:40,000 --> 00:05:45,990 Click Open, and we will just name this Python 3.1 and say OK. 80 00:05:46,000 --> 00:05:50,990 Now you will get this Selection Needed window. You just take the defaults and 81 00:05:51,000 --> 00:05:56,990 select OK Once you have all of this, you select OK, and this will take a few minutes. 82 00:05:57,000 --> 00:06:01,990 Now that you have configured the Python interpreter, you can create your first project. 83 00:06:02,000 --> 00:06:08,990 So under the File menu, you hover over New and you come down here and you select Project. 84 00:06:09,000 --> 00:06:12,990 Under the Selection Wizard, you click on the little arrow next to Pydev and you 85 00:06:13,000 --> 00:06:17,990 select a Pydev project and click Next, and you want to give it a Project name. 86 00:06:18,000 --> 00:06:25,990 I am going to call this Python 3 Essential Training, and you want your Grammar Version 87 00:06:26,000 --> 00:06:30,990 should be 3.0, and your Interpreter will be 3.1 Interpreter. 88 00:06:31,000 --> 00:06:35,990 Project type should be Python and click Finish, and it says it's the Pydev 89 00:06:36,000 --> 00:06:40,990 perspective. You can say Yes for that, and over here in the Perspectives, slide 90 00:06:41,000 --> 00:06:45,990 this over and right-click on the Java and click Close and slide it back over, 91 00:06:46,000 --> 00:06:48,990 unless you are actually going to be working in Java, in which case, you might 92 00:06:49,000 --> 00:06:49,990 want to leave that. 93 00:06:50,000 --> 00:06:54,990 So now we are going to add a folder to our project. I'm going to right-click on 94 00:06:55,000 --> 00:06:58,990 Python 3 Essential Training, and I am going to say New > Folder. I am going to 95 00:06:59,000 --> 00:07:02,990 click on Advanced and Link to folder in the file system, and then I am going to 96 00:07:03,000 --> 00:07:08,990 browse, and I am going to find my exercise files for this course and I put that in my desktop, 97 00:07:09,000 --> 00:07:13,990 and there is Exercise Files, and I will select OK, and so Link to folder in the 98 00:07:14,000 --> 00:07:18,990 file system is checked, and the parent is this Python 3 Essential Training. I am 99 00:07:19,000 --> 00:07:21,990 going to say Finish and there is my Exercise Files. 100 00:07:22,000 --> 00:07:25,990 So this did not copy the Exercise Files into my Project folder; 101 00:07:26,000 --> 00:07:29,990 It simply linked to it. And so, almost there. We are going to go back into the 102 00:07:30,000 --> 00:07:35,990 Preferences, and under Pydev and under Editor, we are going to find this 103 00:07:36,000 --> 00:07:37,990 thing called Hover. 104 00:07:38,000 --> 00:07:42,990 If Show docstrings is checked, you might want to uncheck it; you can try it both ways, 105 00:07:43,000 --> 00:07:46,990 but for my purposes in demonstrating, I have unchecked it. 106 00:07:47,000 --> 00:07:49,990 Feel free to try it both ways and see how that works for you. 107 00:07:50,000 --> 00:07:54,990 So what this does is when you hover over an object in Python, it shows the 108 00:07:55,000 --> 00:07:55,990 entire documentation. 109 00:07:56,000 --> 00:07:58,990 It pops up on the screen, and personally I find that this gets in the way. 110 00:07:59,000 --> 00:08:00,990 You may find it helpful. 111 00:08:01,000 --> 00:08:04,990 So feel free to try it both ways. I have got it unchecked on mine. 112 00:08:05,000 --> 00:08:10,990 Finally, under General > Editors > Text Editors, you want to make sure that 113 00:08:11,000 --> 00:08:13,990 Show line numbers is checked, because that's going to be useful. 114 00:08:14,000 --> 00:08:18,990 So we will select OK, and feel free to look through the Preferences and 115 00:08:19,000 --> 00:08:21,990 experiment with some of the other options. And now we are going to go ahead and 116 00:08:22,000 --> 00:08:28,990 just load up our Hello World program and run it. And so I will select Python Run 117 00:08:29,000 --> 00:08:30,990 and OK, and there we have it. 118 00:08:31,000 --> 00:08:35,990 So we have installed Python, we have installed Eclipse, and we have installed the 119 00:08:36,000 --> 00:08:39,990 Pydev development environment, and we have configured it so we can use it for 120 00:08:40,000 --> 00:08:42,990 Python development, and you can use this environment to follow along with the 121 00:08:43,000 --> 00:08:53,000 exercises in this course.