1 00:00:04,390 --> 00:00:08,889 In this video we need to check whether Python is set up and configured for your 2 00:00:08,889 --> 00:00:15,060 Linux installation. Now I'm running Ubuntu 18.0 4.1, but the concept should 3 00:00:15,060 --> 00:00:21,480 be generally applicable to other Linux distros. So let's open a terminal window first, 4 00:00:24,200 --> 00:00:30,860 and first command I'm going to type is python space - - version. 5 00:00:30,860 --> 00:00:36,160 Now if you actually get a version return, and version of Python 3 point X is showing 6 00:00:36,160 --> 00:00:39,520 other than command not found, which is showing for me, then you don't need to do 7 00:00:39,520 --> 00:00:43,120 anything else and you can probably finish off the video. But in my case you can see 8 00:00:43,120 --> 00:00:47,180 that I've got an error and a suggestion on how to go about installing Python. 9 00:00:47,180 --> 00:00:51,540 So what I'm going to do now is just confirm that Python 3 also isn't available, so I 10 00:00:51,550 --> 00:00:57,940 can do that by typing Python 3 space - - version, and in my case you can see that 11 00:00:57,940 --> 00:01:03,280 I have got Python 3.6.5 installed by default on Ubuntu. 12 00:01:03,280 --> 00:01:07,119 Now this is a brand new installation. I haven't done any configuration, or any 13 00:01:07,119 --> 00:01:10,810 patching or anything like that. So basically, that's probably enough for you 14 00:01:10,810 --> 00:01:14,520 if you're running ubuntu, and you won't need to actually do anything else. 15 00:01:14,520 --> 00:01:18,220 If you do want to install the latest python version, version 3.7.3, 16 00:01:18,220 --> 00:01:22,400 you can do so, but frankly there's no real need to do it because there's 17 00:01:22,400 --> 00:01:26,440 not significant changes that have been made, and you'll find that over time, 18 00:01:26,440 --> 00:01:30,140 this installation Ubuntu will actually update the Python version anyway. 19 00:01:30,140 --> 00:01:34,020 But one thing you'll need to check though, is we use a program, and that's PIP. 20 00:01:34,020 --> 00:01:39,640 We use a command line program called PIP, and we need to check whether that exists on this installation 21 00:01:39,640 --> 00:01:44,860 so I'm going to type pip. You can see I've got an error there. Again, if you had 22 00:01:44,860 --> 00:01:47,770 a version come back and it did actually report something, then chances are, 23 00:01:47,770 --> 00:01:53,920 that'll be all you'll need. But you can also type pip3. Let's do that just to make sure. 24 00:01:53,920 --> 00:01:56,960 That's not working either, as you can see there. So if either of those 25 00:01:56,960 --> 00:02:01,240 commands returned PIP with a 3 point X version, then you wouldn't need 26 00:02:01,240 --> 00:02:04,480 to do anything else, but as you can see with a brand new installation of Ubuntu, 27 00:02:04,480 --> 00:02:08,919 that didn't work for me, so therefore I need to install at least PIP 3. 28 00:02:08,919 --> 00:02:19,040 So to do that I'm going to type sudo apt a p t space install space python3 - pip. 29 00:02:19,040 --> 00:02:22,160 We're going to type password, my password, 30 00:02:22,160 --> 00:02:28,480 accept yes there, and that's going to download it and install PIP, or PIP 3 in this case. 31 00:02:28,480 --> 00:02:31,180 Once that's finished we'll just check the version number to 32 00:02:31,180 --> 00:02:35,050 confirm we've got pip version 3, and that's all we need to do before we move 33 00:02:35,050 --> 00:02:38,200 onto the next video. 34 00:02:38,200 --> 00:02:39,680 Alright so that's finished so I can 35 00:02:39,680 --> 00:02:46,390 type pip3 space - - version. We've now got a command being returned for us. 36 00:02:46,390 --> 00:02:50,470 We've got, in this case, pip9 being returned, so that's telling us that 37 00:02:50,470 --> 00:02:53,890 everything's good to go, and the 3 point X that I was referring to, 38 00:02:53,890 --> 00:02:58,180 by the way, over to the right hand side, notice it says Python 3.6. 39 00:02:58,180 --> 00:03:02,290 So basically, we know that we've got a version of PIP for Python three-point-something, 40 00:03:02,290 --> 00:03:07,080 3.6 in this particular case, because we wouldn't want to be using PIP 2 with a 41 00:03:07,080 --> 00:03:11,980 Python 3 installation. But basically, at this point of time we've got both Python 3, 42 00:03:11,980 --> 00:03:15,430 in our case it was, I think, 3.6.5. I'll just check that again, 43 00:03:15,430 --> 00:03:22,420 python space - - version, python3 that should have been. And python3 space - - version, 44 00:03:22,420 --> 00:03:25,630 we've got Python 3.6.7 installed, and we've also got 45 00:03:25,630 --> 00:03:30,180 PIP version 9.0.1, which is for Python 3.6 installed. 46 00:03:30,180 --> 00:03:33,720 So we're actually good to go at this point. So let's end the video here, 47 00:03:33,720 --> 00:03:37,520 and in the next video we'll start going through and installing IntelliJ IDEA, 48 00:03:37,520 --> 00:03:42,420 which is the IDE we're going to be using, to write Python programs in this course. 49 00:03:42,420 --> 00:03:45,320 So see you in the next video.