WEBVTT 00:02.460 --> 00:08.970 Before we will install our Django, we need to do something else and that will be installing virtual 00:08.970 --> 00:09.600 environment. 00:09.600 --> 00:13.260 And I will explain you why we need it and how to create one. 00:13.260 --> 00:15.690 So what is virtual environment? 00:15.720 --> 00:18.870 Virtual environment is a kind of folder. 00:18.870 --> 00:27.420 It's an environment that we install in our folder and that's encapsulated view for our application. 00:27.450 --> 00:34.790 That means if we want to install something and we are inside that virtual environment, that something, 00:34.800 --> 00:39.720 the piece of software package will be installed in that virtual environment. 00:39.750 --> 00:45.600 Otherwise when we install things with a python, it will be installed globally on our machine. 00:45.600 --> 00:48.850 So how actually we can install something in Python? 00:48.870 --> 00:51.420 Python three comes with a pip. 00:51.930 --> 00:55.800 Pip and that's a package installer for Python. 00:56.430 --> 01:04.750 And then basically what we can do is pip install and then name of the package if I will do Django right 01:04.750 --> 01:10.360 now, this package installer will install Django globally on my computer. 01:10.360 --> 01:14.350 That means this junk will be installed for the whole computer. 01:14.350 --> 01:21.550 So generally this would be a bad idea because we might have more than one project in our computer and 01:21.550 --> 01:24.460 each project will have a different Django version. 01:24.460 --> 01:29.230 If not Django, you might have different packages installed for different projects. 01:29.230 --> 01:33.880 So one project might might need some package, the other projects might not need it. 01:33.880 --> 01:42.700 So in order to have something specific for the current project, we need to create a virtual environment 01:42.700 --> 01:49.990 and that virtual environment will hold the project, encapsulate it, and it will be containing all 01:49.990 --> 01:54.000 of the packages and libraries will install inside. 01:54.010 --> 01:55.870 So how we can create one. 01:56.140 --> 02:01.180 Let's go on a desktop here and inside the desktop. 02:01.180 --> 02:04.870 What I can do is I can create virtual environment. 02:05.080 --> 02:09.040 Actually with Python 3.5, we can do it with Python command. 02:09.040 --> 02:10.450 So we go Python. 02:11.050 --> 02:18.280 In my case it's Python three because I have more than one and then I will do minus m dash m, which 02:18.280 --> 02:20.440 is make venv. 02:22.050 --> 02:25.260 And then we can name our virtual environment. 02:25.290 --> 02:26.910 I will name it the same way. 02:26.960 --> 02:32.170 VNV So one is make virtual environment and then you name it. 02:32.190 --> 02:34.050 I always name it virtual environment. 02:34.050 --> 02:37.580 So it's easy to remember and it's quite short to type in. 02:37.590 --> 02:42.190 So we do python3 m venv vcf. 02:42.330 --> 02:43.380 I click enter. 02:47.310 --> 02:48.000 If I do. 02:48.000 --> 02:55.380 Now, as you can see, my folder has been created here and I've created a virtual environment in that 02:55.380 --> 02:57.780 folder which is on desktop. 02:57.990 --> 03:00.840 And now how can I actually activate it? 03:00.840 --> 03:05.430 Because at the moment virtual environment has been created for me. 03:05.820 --> 03:10.110 So I have virtual environment, but I haven't used it yet. 03:10.140 --> 03:16.260 In order to use this virtual environment and the process is a little bit different on Mac and Linux 03:16.260 --> 03:17.790 and Windows, so on. 03:17.790 --> 03:22.920 Mac and Linux will be the processes I will show you in a second and we'll switch to Windows and I will 03:22.920 --> 03:24.540 show you how to do it on Windows. 03:24.570 --> 03:27.360 So basically we have virtual environments now. 03:27.390 --> 03:36.210 So to activate, I need to type source and then I need to go to the folder Venv bin Activate. 03:36.210 --> 03:39.270 And you can see here I start to type in and I type. 03:39.360 --> 03:44.670 I click on my keyboard tab and that autocompletes the the path for me. 03:44.670 --> 03:46.090 So the source. 03:46.090 --> 03:49.180 And then I need to do activate if I will click. 03:49.180 --> 03:56.200 Now you can see at the beginning of the line here we have the env, that's the name of my virtual environment. 03:56.230 --> 04:05.020 Once I have it here, if I install something here like Pip, install Django. 04:07.360 --> 04:14.020 You can see the Django is installed, but this will be installed inside the virtual environment. 04:14.050 --> 04:22.090 Now, if I would if I will do that without that virtual environment activated, which I've done thorfinn 04:22.090 --> 04:29.110 begin activate, then the Django would be installed globally and then I can't really use it in the same 04:29.110 --> 04:30.760 way as I have it here. 04:30.760 --> 04:35.230 So basically to create a new project with Django, we need to create a virtual environment. 04:35.260 --> 04:41.920 Without it with Python3 m VMV, then we activate it and then we can install these things. 04:41.950 --> 04:46.330 Okay, let's switch to Windows and I will show you how to do it on Windows Machine. 04:46.960 --> 04:49.330 Okay, now we are inside Windows Machine. 04:49.330 --> 04:50.800 Let's go to the desktop. 04:51.560 --> 04:57.130 We're inside the desktop and let's use our let's create our virtual environment. 04:57.130 --> 05:04.870 So Python, M, VNV, VNV, the same command as we used before. 05:04.870 --> 05:10.480 Now I don't have to type in a three at the end here because I have only Python three. 05:10.490 --> 05:15.140 I remove my version two from this machine because I won't use it anymore. 05:15.140 --> 05:20.270 So I have only Python three so I can type python without any suffix. 05:21.480 --> 05:27.750 You can see here on the desktop, I've created a new virtual environment and the folder here is for 05:27.750 --> 05:28.920 me to use it. 05:32.260 --> 05:34.750 It might take a while to finish that command. 05:44.060 --> 05:49.880 Okay, Now, when this is done, we can activate that virtual environment and the command for this, 05:49.880 --> 05:51.590 it's a little bit different. 05:51.590 --> 05:56.870 So what we will need to do is we'll need to navigate inside that folder. 05:56.870 --> 06:03.770 I can show you that inside here we have scripts and we have activate here. 06:03.770 --> 06:06.230 So basically that's what we need to do. 06:10.440 --> 06:14.280 So we do an environment. 06:17.300 --> 06:18.440 Environment. 06:22.880 --> 06:23.720 Scripts. 06:25.870 --> 06:26.950 Activate. 06:28.550 --> 06:34.900 And you can see here VNV at the beginning of the line means that our environment has been activated. 06:34.910 --> 06:38.480 Once this is done, I can do a Pip install. 06:40.390 --> 06:43.840 Django the same way I've done it before. 06:43.840 --> 06:49.960 So basically Django will be installed in our virtual environment inside our folder. 06:49.960 --> 06:55.530 So this folder inside our desktops, it's also not a good practice. 06:55.540 --> 07:03.040 What we'll need to do in our real project is to create actually a folder containing our project files. 07:03.040 --> 07:07.480 And also we'll need to have virtual environment folder inside this. 07:07.480 --> 07:14.320 So usually you create a folder, you create virtual environment inside that folder and then you activate 07:14.320 --> 07:17.230 it and you install everything from from there. 07:17.230 --> 07:24.700 So virtual environment is a part of your setup project setup, but you don't need to include it, if 07:24.700 --> 07:25.300 you will. 07:25.300 --> 07:29.590 For example, put it on git because that can be easily recreated. 07:29.590 --> 07:36.880 Virtual environment contains only the libraries and the packages that are needed for your current project. 07:36.910 --> 07:41.420 So if you need to recreate it, you can also install it back again. 07:41.420 --> 07:47.660 So if I want to share my project with you, I would exclude virtual environment folder and then I can 07:47.930 --> 07:53.930 give you only the project files and you can do Pip install all the libraries needed for this project 07:53.930 --> 07:56.270 and you will be ready to to go. 07:56.780 --> 07:57.350 Okay. 07:57.350 --> 08:04.070 Once we know the how to install virtual environment in the next section, I will show you how to create 08:04.070 --> 08:05.810 our Django application.