1 00:00:00,660 --> 00:00:01,920 ‫Welcome back. 2 00:00:01,950 --> 00:00:10,260 ‫So let's now instal python and its libraries for Mac OS and we're going to use the latest version which 3 00:00:10,260 --> 00:00:11,280 ‫is big. 4 00:00:11,280 --> 00:00:20,820 ‫So let's start with going to the Python website and now we're going to go to downloads, all releases. 5 00:00:21,060 --> 00:00:29,520 ‫And I would not like to download Python 3.9 because I want to make sure that all the other libraries 6 00:00:29,520 --> 00:00:35,040 ‫that I'm going to be using, that they are fully ready for that version. 7 00:00:35,340 --> 00:00:42,780 ‫And so all my tests have been successful with Python 3.8.7. 8 00:00:43,080 --> 00:00:53,010 ‫And so we're going to go to Mac OS and we're going to download the Mac OS 64 bit into the installer 9 00:00:53,190 --> 00:00:55,800 ‫for Python 3.8.7. 10 00:00:55,980 --> 00:01:02,730 ‫Do you want to allow downloads on w w w dot python dot org and of course allow. 11 00:01:03,030 --> 00:01:05,940 ‫And so I'm going to go to the downloads folder. 12 00:01:06,180 --> 00:01:09,870 ‫So here's the installer that I'm going to click on. 13 00:01:10,170 --> 00:01:17,610 ‫And so now I have this text, I'm going to click Continue, I'm going to read everything again, I'm 14 00:01:17,610 --> 00:01:26,040 ‫going to click Continue and of course I'm going to read everything, continue, agree and install. 15 00:01:26,310 --> 00:01:35,040 ‫And then here I have to put my system password with which you log in into your system and so it will 16 00:01:35,040 --> 00:01:37,020 ‫start installing Python. 17 00:01:37,230 --> 00:01:45,510 ‫And so at some point I will have this folder here with these files and I can just ignore this folder 18 00:01:45,510 --> 00:01:47,820 ‫and here you can see that. 19 00:01:47,820 --> 00:01:57,870 ‫Congratulations, Python 3.8.7 for Mac OS is successfully installed and now we don't need the installer 20 00:01:57,870 --> 00:01:58,410 ‫anymore. 21 00:01:58,410 --> 00:02:00,390 ‫So we move it to trash. 22 00:02:00,690 --> 00:02:06,030 ‫We can close this folder and we can close this website as well. 23 00:02:06,210 --> 00:02:14,430 ‫And now let's test if our python is installed correctly, I'm going to use terminal in order to launch 24 00:02:14,430 --> 00:02:15,960 ‫my python programs. 25 00:02:16,140 --> 00:02:18,420 ‫I would recommend you to do the same. 26 00:02:18,540 --> 00:02:27,120 ‫I would not recommend you to use ides such as Spider or Jupyter Notebook. 27 00:02:27,480 --> 00:02:32,040 ‫The animations might not work if you launch your programs from there. 28 00:02:32,040 --> 00:02:36,750 ‫The most robust way is to launch them from terminal. 29 00:02:36,990 --> 00:02:46,110 ‫And now let's go into our desktop folder CD Desktop CD stands for change directory. 30 00:02:46,350 --> 00:02:55,050 ‫So I have a python file here test dot py and I'm going to open it with the idle. 31 00:02:55,260 --> 00:03:00,030 ‫I'm going to ignore the shell and I'm going to go where the program is written. 32 00:03:00,300 --> 00:03:03,720 ‫Now I don't care about the numpy nor pillar right now. 33 00:03:03,720 --> 00:03:09,270 ‫I just want to know if my python is working properly for that. 34 00:03:09,270 --> 00:03:14,220 ‫I'm just going to right here print hello world and then exit. 35 00:03:14,520 --> 00:03:17,220 ‫That will end the program at that point. 36 00:03:17,400 --> 00:03:25,110 ‫And so if I close this file then it's going to ask me if I want to save it and I'm going to say yes, 37 00:03:25,320 --> 00:03:27,720 ‫I'm going to close the shell as well. 38 00:03:28,050 --> 00:03:38,640 ‫And then here, when I'm in my desktop folder in my terminal, I'm going to write Python three and then 39 00:03:38,640 --> 00:03:42,660 ‫the name of the file test dot py. 40 00:03:42,840 --> 00:03:45,660 ‫And as you can see it prints hello world. 41 00:03:45,930 --> 00:03:49,110 ‫So our python is working very good. 42 00:03:49,320 --> 00:03:58,350 ‫But now if I go back to our program and then I delete all this stuff and leave the original program, 43 00:03:58,650 --> 00:04:08,220 ‫if I save it now and close the shell and run the program now, then I will get an error because I don't 44 00:04:08,220 --> 00:04:19,080 ‫have a numpy library in your terminal right CD so that you would get out of your desktop folder and 45 00:04:19,080 --> 00:04:22,530 ‫be in your default home folder again. 46 00:04:23,100 --> 00:04:28,560 ‫Before we can install numpy though we have to install pip. 47 00:04:28,950 --> 00:04:32,760 ‫Pip is a python package management system. 48 00:04:32,910 --> 00:04:41,790 ‫For that we go to safari and then we're going to go to this website, pip dot piper. 49 00:04:41,790 --> 00:04:49,050 ‫So P y p a dot io here we go to installation. 50 00:04:49,380 --> 00:04:55,230 ‫We're going to make sure that we have Unix or Mac OS here, not windows. 51 00:04:55,470 --> 00:05:00,060 ‫And then we're going to come here where you have installing with. 52 00:05:00,200 --> 00:05:03,950 ‫Get Dash, peep that pie. 53 00:05:04,310 --> 00:05:13,130 ‫And then we're going to copy this line and we're going to paste it into our terminal here and press 54 00:05:13,130 --> 00:05:13,850 ‫enter. 55 00:05:13,940 --> 00:05:23,510 ‫And then you have to go back to the website and copy this link as well, and then you can paste it here 56 00:05:23,510 --> 00:05:24,740 ‫in your terminal. 57 00:05:25,010 --> 00:05:30,500 ‫And before you press enter, you have to put here Python three. 58 00:05:30,650 --> 00:05:35,480 ‫So a small modification and then you press enter. 59 00:05:35,690 --> 00:05:44,090 ‫And now it started installing it and now you have successfully installed the Python package management 60 00:05:44,090 --> 00:05:52,430 ‫system, PIP, and now you can write pip install numpy to two equals signs. 61 00:05:55,340 --> 00:05:58,350 ‫And now you have successfully installed numpy. 62 00:05:58,370 --> 00:06:00,140 ‫1.99.3. 63 00:06:00,500 --> 00:06:03,740 ‫And now you can write CD desktop. 64 00:06:04,100 --> 00:06:06,710 ‫Now you enter into your desktop folder. 65 00:06:07,010 --> 00:06:13,610 ‫Now, before we run our file, let's enter into our file again through Idle. 66 00:06:13,940 --> 00:06:17,330 ‫At this point, we don't care about the pillow library. 67 00:06:17,630 --> 00:06:22,400 ‫That's the library that you need when you work with images. 68 00:06:22,610 --> 00:06:24,680 ‫At this point, we're going to ignore it. 69 00:06:24,890 --> 00:06:27,590 ‫We just want to test numpy. 70 00:06:27,830 --> 00:06:34,460 ‫And so we're going to right here print and p dot py and then we're going to write here exit. 71 00:06:34,730 --> 00:06:38,990 ‫And so if our numpy works, then we should get a py value. 72 00:06:39,110 --> 00:06:42,950 ‫So when we close it, then it asks us to save it. 73 00:06:42,980 --> 00:06:43,730 ‫We're going to click. 74 00:06:43,730 --> 00:06:44,420 ‫Yes. 75 00:06:44,690 --> 00:06:50,900 ‫We're going to close the shell and we're going to write Python three and then test that. 76 00:06:50,900 --> 00:06:51,590 ‫PY. 77 00:06:51,800 --> 00:06:54,710 ‫And as you can see, we get our py value. 78 00:06:55,040 --> 00:07:04,370 ‫And that means that our numpy library works in your terminal write cd so that you would get out of your 79 00:07:04,370 --> 00:07:10,100 ‫desktop folder and be in your default home folder again. 80 00:07:10,490 --> 00:07:13,430 ‫And now we have to install matlab. 81 00:07:13,520 --> 00:07:20,510 ‫For that, we write pip install method lib two equals sines and then. 82 00:07:22,560 --> 00:07:31,380 ‫And so we have successfully installed our method WLIB and now we write CD desktop because our Python 83 00:07:31,380 --> 00:07:34,110 ‫file is in the desktop. 84 00:07:34,380 --> 00:07:42,240 ‫And so if we run an animation file here that requires MATLAB, then you can see that the animation is 85 00:07:42,240 --> 00:07:42,930 ‫working. 86 00:07:43,320 --> 00:07:45,300 ‫Of course, it's very slow. 87 00:07:45,980 --> 00:07:52,790 ‫But that's because I'm running the simulation and recording the screen at the same time, and that's 88 00:07:52,790 --> 00:07:53,240 ‫it. 89 00:07:53,270 --> 00:07:59,810 ‫Now you have all the necessary libraries in case you use the MAC system as well. 90 00:07:59,990 --> 00:08:01,830 ‫So I'll see you in the next video. 91 00:08:01,850 --> 00:08:03,020 ‫Thank you very much.