WEBVTT

1
00:00:04.740 --> 00:00:06.600
In this video we're gonna go ahead and

2
00:00:06.600 --> 00:00:09.120
download and install Python for a Mac.

3
00:00:09.120 --> 00:00:10.860
Now if you're running Python on a

4
00:00:10.860 --> 00:00:12.990
Windows machine or running Python on a

5
00:00:12.990 --> 00:00:15.090
Linux machine, then you want to actually

6
00:00:15.090 --> 00:00:16.860
refer to a separate video that I've got

7
00:00:16.860 --> 00:00:19.349
in this part of the course for each of

8
00:00:19.349 --> 00:00:21.689
those other platforms and the reason for

9
00:00:21.689 --> 00:00:23.279
that is that the process is a little bit

10
00:00:23.279 --> 00:00:24.660
different depending on which platform

11
00:00:24.660 --> 00:00:26.430
you're actually running it on. So in this

12
00:00:26.430 --> 00:00:28.410
case, we're going to install a Python

13
00:00:28.410 --> 00:00:31.110
on a Mac, so first things to do first

14
00:00:31.110 --> 00:00:35.520
thing to do is to go to python.org and

15
00:00:35.520 --> 00:00:36.540
we're going to download the latest

16
00:00:36.540 --> 00:00:38.640
version, so I'm going to hover over here

17
00:00:38.640 --> 00:00:40.800
to downloads noting that because I'm on

18
00:00:40.800 --> 00:00:42.780
a Mac, it's come up and showing me the

19
00:00:42.780 --> 00:00:45.030
download automatically, so the version we

20
00:00:45.030 --> 00:00:46.530
want to select is one here to the left,

21
00:00:46.530 --> 00:00:48.600
Python six three point six point

22
00:00:48.600 --> 00:00:50.820
two and that's the current version as of

23
00:00:50.820 --> 00:00:52.289
the time that I'm recording this video,

24
00:00:52.289 --> 00:00:54.390
you might find in the future it'll be a

25
00:00:54.390 --> 00:00:56.039
later version, so you just grab the

26
00:00:56.039 --> 00:00:58.079
latest one that appears and click on

27
00:00:58.079 --> 00:01:01.739
that I'm gonna save that and what I want

28
00:01:01.739 --> 00:01:02.940
to do though is just mention here that

29
00:01:02.940 --> 00:01:05.460
this Python 2.7, we definitely don't want

30
00:01:05.460 --> 00:01:07.530
that and the reason is that this course

31
00:01:07.530 --> 00:01:10.020
deals with Python 3 but the other reason

32
00:01:10.020 --> 00:01:12.119
is that Python 2 actually already exists

33
00:01:12.119 --> 00:01:13.979
on a Mac. So while that's downloading,

34
00:01:13.979 --> 00:01:15.540
well it's actually finished now, but I

35
00:01:15.540 --> 00:01:18.689
just want to briefly go into terminal so

36
00:01:18.689 --> 00:01:20.189
I'll press the command space and typed

37
00:01:20.189 --> 00:01:23.159
terminal, I'm gonna type Python so we

38
00:01:23.159 --> 00:01:24.570
haven't actually installed Python yet

39
00:01:24.570 --> 00:01:26.579
we've only downloaded it. We'll go ahead

40
00:01:26.579 --> 00:01:28.350
and type those commands and notice that

41
00:01:28.350 --> 00:01:30.329
we actually get something working,

42
00:01:30.329 --> 00:01:32.340
it's come up and said Python 2.7

43
00:01:32.340 --> 00:01:34.710
so that's installed by default on a Mac.

44
00:01:34.710 --> 00:01:36.360
So in case you're wondering how it got

45
00:01:36.360 --> 00:01:38.430
there it's when you install or whether

46
00:01:38.430 --> 00:01:39.659
your Mac is installed with the new

47
00:01:39.659 --> 00:01:41.159
version and whatever operating version

48
00:01:41.159 --> 00:01:43.020
of OS X that you're running Python

49
00:01:43.020 --> 00:01:45.780
version 2 is installed, but in our case

50
00:01:45.780 --> 00:01:47.579
we don't want to use version 2, we want

51
00:01:47.579 --> 00:01:49.950
to use version 3, so consequently I'm

52
00:01:49.950 --> 00:01:51.299
going to exit out of that prompt by

53
00:01:51.299 --> 00:01:55.799
doing a control d and the command we

54
00:01:55.799 --> 00:01:57.509
would normally type would be Python 3

55
00:01:57.509 --> 00:01:59.490
that would be how we access version 3

56
00:01:59.490 --> 00:02:01.619
and higher, but you can see that the

57
00:02:01.619 --> 00:02:03.240
moments coming up coming up and saying

58
00:02:03.240 --> 00:02:05.700
that python 3 command were not found. So what

59
00:02:05.700 --> 00:02:07.109
we now need to do is swing over and

60
00:02:07.109 --> 00:02:11.720
install python 3, so i'm going to log out

61
00:02:11.720 --> 00:02:15.510
the topping exit close down terminal and

62
00:02:15.510 --> 00:02:18.040
come over here to where it was downloaded

63
00:02:18.040 --> 00:02:19.750
to open the package that we downloaded

64
00:02:19.750 --> 00:02:22.719
python 3.6, we're going to go ahead now

65
00:02:22.719 --> 00:02:24.640
and install that, so I'm gonna click on

66
00:02:24.640 --> 00:02:27.209
continue we're going to continue again

67
00:02:27.209 --> 00:02:29.439
and one more time you can read all these

68
00:02:29.439 --> 00:02:31.599
things if you want but clicking

69
00:02:31.599 --> 00:02:33.430
through fast to get the installation

70
00:02:33.430 --> 00:02:35.500
completed, we're going to agree to the

71
00:02:35.500 --> 00:02:38.739
software license click on install,

72
00:02:38.739 --> 00:02:43.120
I'm going to type my password we'll give it

73
00:02:43.120 --> 00:02:48.230
a moment to complete.

74
00:02:48.230 --> 00:02:50.209
Okay so I can see the installations now

75
00:02:50.209 --> 00:02:51.379
been completed so I can close

76
00:02:51.379 --> 00:02:53.030
that down, I'm going to move the

77
00:02:53.030 --> 00:02:54.680
installer that we downloaded to the

78
00:02:54.680 --> 00:02:56.599
trash because we're finished with it.

79
00:02:56.599 --> 00:02:57.530
Now the last thing we need to do in this

80
00:02:57.530 --> 00:02:59.569
video now is just check that Python 3 is

81
00:02:59.569 --> 00:03:01.250
available so I'm going to hold down

82
00:03:01.250 --> 00:03:03.379
command and press space again and type

83
00:03:03.379 --> 00:03:05.030
in terminal just going to select what's

84
00:03:05.030 --> 00:03:06.080
there because that's remembered it from

85
00:03:06.080 --> 00:03:09.319
last time press enter and if recall

86
00:03:09.319 --> 00:03:11.120
last time we try this Python 3

87
00:03:11.120 --> 00:03:13.569
didn't work, but now if I type Python 3

88
00:03:13.569 --> 00:03:15.890
we can see that in fact it's now working.

89
00:03:15.890 --> 00:03:18.319
So what's happened is python 3 has been

90
00:03:18.319 --> 00:03:21.620
installed and the Mac has been updated

91
00:03:21.620 --> 00:03:23.330
with that and we can now start accessing

92
00:03:23.330 --> 00:03:24.590
that and we'll be using that server

93
00:03:24.590 --> 00:03:26.650
version of Python throughout the course,

94
00:03:26.650 --> 00:03:29.810
control d to exit in just a confirmation

95
00:03:29.810 --> 00:03:32.000
if we just type Python without the 3 on

96
00:03:32.000 --> 00:03:34.040
the end, we still get access to the old

97
00:03:34.040 --> 00:03:35.390
part of it so in effect we've got two

98
00:03:35.390 --> 00:03:37.400
versions, we haven't affected the version

99
00:03:37.400 --> 00:03:39.560
that comes with the Mac by default what

100
00:03:39.560 --> 00:03:41.030
we've done is installed an additional

101
00:03:41.030 --> 00:03:42.410
version and we'll be using that

102
00:03:42.410 --> 00:03:43.910
additional version as we go through this

103
00:03:43.910 --> 00:03:46.010
course. Alright, so we'll finish the video

104
00:03:46.010 --> 00:03:49.959
here, I'll see you in the next one.