1
00:00:00,790 --> 00:00:03,260
Hey, you're still sticking around.

2
00:00:03,280 --> 00:00:09,040
That's good, I didn't bore you with all my talking, but yes, in this video, finally, we're going

3
00:00:09,040 --> 00:00:11,290
to write some python code.

4
00:00:11,470 --> 00:00:12,190
Holy moly.

5
00:00:12,190 --> 00:00:12,610
Thank God.

6
00:00:12,610 --> 00:00:14,050
I thought that was going to last forever.

7
00:00:14,890 --> 00:00:15,400
All right.

8
00:00:15,700 --> 00:00:18,430
So what is our first program going to do?

9
00:00:19,120 --> 00:00:26,980
Well, let's create a very, very simple function and probably the first thing any programmer learns

10
00:00:26,980 --> 00:00:29,890
to do to print our own name.

11
00:00:30,040 --> 00:00:37,820
So in here, once you have your Reppel got it set up or remember, you can also use glottal IO.

12
00:00:39,030 --> 00:00:41,130
We're simply going to write, print.

13
00:00:42,190 --> 00:00:48,130
And then you see over here that it gives us some information, but all we want to do is write Brackett's

14
00:00:49,150 --> 00:00:50,290
a quote.

15
00:00:51,440 --> 00:00:56,450
So you can do double quotes here or a single quote and just type your name.

16
00:00:59,410 --> 00:01:01,000
And if we click, Ron.

17
00:01:02,400 --> 00:01:11,910
On the right side, we've just ridden our very first Python program, very exciting, but what's happening

18
00:01:11,910 --> 00:01:12,090
here?

19
00:01:12,510 --> 00:01:14,370
Well, let's let's look at everything.

20
00:01:14,730 --> 00:01:22,200
First of all, if you're confused why my thing is dark and yours might be light, it's because if I

21
00:01:22,200 --> 00:01:27,390
go to settings, I've set my theme to light or to dark.

22
00:01:27,420 --> 00:01:28,650
I prefer the dark version.

23
00:01:28,920 --> 00:01:31,070
But you can change some of your settings.

24
00:01:31,080 --> 00:01:36,630
You can change the font size if you want, based on when you watch the video, this website, the lock

25
00:01:36,630 --> 00:01:39,510
might be different, but most of the settings should be the same.

26
00:01:40,540 --> 00:01:50,590
We see that we have a main dot pi, which is the python extension, any file that has a dot pi or PI

27
00:01:50,890 --> 00:01:52,240
is a python file.

28
00:01:52,720 --> 00:01:57,070
So what we've just written here on line one is.

29
00:01:57,950 --> 00:02:06,170
A program that prints in this case Andre Nagui or in your case, your own name, and we've run it to

30
00:02:06,170 --> 00:02:12,800
this file now, Reppel, that it takes this file already has this interpreter.

31
00:02:13,690 --> 00:02:23,080
For us, it runs this piece of code, gives this source code of may not apply to the interpreter and

32
00:02:23,080 --> 00:02:25,380
runs it right here on our right side.

33
00:02:26,110 --> 00:02:30,400
If you look over here, we're using Python version three point six point one.

34
00:02:30,850 --> 00:02:35,980
And down below we see that we have Andre Nagui printed.

35
00:02:38,690 --> 00:02:41,180
So this is our code running.

36
00:02:42,180 --> 00:02:50,460
Remember this diagram, all we've done is we have our main DCPI where we wrote print Andre Nagui, we

37
00:02:50,460 --> 00:02:55,130
gave it to the interpreter that the Reppel already provides for us.

38
00:02:55,500 --> 00:03:00,000
That interpreter takes our code, converts it into bytecode.

39
00:03:01,100 --> 00:03:08,060
And here, I'll say Andre Nagui, and then it runs it in the C Python VM, which was on the right side

40
00:03:08,060 --> 00:03:14,570
that we saw, and it finally prints our name because it tells the machine, hey, we want that text

41
00:03:14,570 --> 00:03:15,040
printed.

42
00:03:15,560 --> 00:03:17,140
So that's what we're seeing here.

43
00:03:17,330 --> 00:03:23,480
This is the C Python virtual machine essentially running this code and telling this machine, hey,

44
00:03:23,840 --> 00:03:24,950
I want you to print this.

45
00:03:25,960 --> 00:03:31,690
All right, but this is a very exciting I mean, let's let's make this program a little bit more dynamic

46
00:03:31,690 --> 00:03:35,400
for our first program, we want to do something more impressive than just print name.

47
00:03:36,280 --> 00:03:43,120
So I'm going to teach you another thing we can do in Python, and it's called input.

48
00:03:44,500 --> 00:03:52,660
Now, in here, I can say input, and you see that report actually gives me some information saying

49
00:03:52,660 --> 00:03:57,580
that I have this, you can just click here and this input over here.

50
00:03:58,500 --> 00:04:05,070
Well, what can we do, this input is going to prompt a user, and if I hover over it, you can see

51
00:04:05,550 --> 00:04:11,820
how it's giving me some information, but input simply gives us a way to capture information.

52
00:04:11,850 --> 00:04:15,050
So let's say, what is your name?

53
00:04:17,010 --> 00:04:18,630
And if I run this code.

54
00:04:20,460 --> 00:04:28,050
We see that we have our Python code running and it's asking me what is my name with this cursor here

55
00:04:28,230 --> 00:04:30,690
so I can actually type something here, I can say.

56
00:04:33,610 --> 00:04:39,370
And if I hit enter, well, there you go, I've just.

57
00:04:40,230 --> 00:04:47,400
Typed in my own name, nothing that exciting, right, but this is where code becomes interesting because

58
00:04:47,700 --> 00:04:50,520
we can store this information on our computer.

59
00:04:51,410 --> 00:04:58,130
So, again, these are things that we're going to go over in detail in our Basics Python section, but

60
00:04:58,130 --> 00:05:03,560
just to write our first code, let's assign this to memory.

61
00:05:03,770 --> 00:05:10,070
That is let's say that name equals whatever is the input of what is your name?

62
00:05:11,770 --> 00:05:14,410
And then finally, we can just print.

63
00:05:17,950 --> 00:05:20,800
So remember, the interpreter is going to take this first line.

64
00:05:21,830 --> 00:05:24,230
It's going to ask, what is your name?

65
00:05:24,650 --> 00:05:30,860
I'm going to type something, that type of information is going to get assigned to a name.

66
00:05:31,610 --> 00:05:34,570
And then finally we print name.

67
00:05:35,420 --> 00:05:41,870
Remember, an interpreter takes Line-by-line Convert's code to bytecode and then finally runs it.

68
00:05:42,890 --> 00:05:44,180
So let's give this a try.

69
00:05:44,210 --> 00:05:45,200
I'm going to click run.

70
00:05:46,740 --> 00:05:47,670
All right, what's your name?

71
00:05:48,480 --> 00:05:50,010
My name is Andre.

72
00:05:53,980 --> 00:05:59,680
I typed in my name hit Enter, and then it printed out Andre.

73
00:06:00,960 --> 00:06:07,050
So for the final feat, let's greet so we're going to say print.

74
00:06:08,730 --> 00:06:10,080
Hello.

75
00:06:12,350 --> 00:06:13,800
And then plus name.

76
00:06:14,630 --> 00:06:19,910
Now, don't worry about the syntax, we're going to go over it, but all we're doing is saying hello

77
00:06:20,120 --> 00:06:24,620
and then adding our name to the end of this.

78
00:06:25,650 --> 00:06:29,580
So let's see what happens if I run this and say, what is your name?

79
00:06:30,090 --> 00:06:32,670
My name is Andre and I hit Enter.

80
00:06:33,870 --> 00:06:39,780
I get hello, Andre, but no spaces, so let's add a little space hit run again.

81
00:06:41,200 --> 00:06:45,730
For the fourth time, my name is Andre and says, Hello, Andre.

82
00:06:46,710 --> 00:06:49,790
There it is, our first Python program.

83
00:06:50,520 --> 00:06:56,280
Now, it's not very exciting because it is our first program, we're just learning the steps here.

84
00:06:56,550 --> 00:07:04,560
But I hope because we've covered some of these topics ahead of time, that this isn't just pure magic.

85
00:07:04,710 --> 00:07:05,120
Right.

86
00:07:05,490 --> 00:07:07,880
You understand that this is source code.

87
00:07:08,130 --> 00:07:18,390
This is main DCPI that we give to an interpreter that runs our code line by line and then executes our

88
00:07:18,390 --> 00:07:22,890
program in this case are what is your name program?

89
00:07:24,060 --> 00:07:26,160
How cool is that?

90
00:07:27,080 --> 00:07:33,110
This is just the beginning where we're going to get more and more advanced here, see if he can play

91
00:07:33,110 --> 00:07:38,120
around with this, we don't know that much about Python yet, but I hope this gets you excited because,

92
00:07:38,120 --> 00:07:40,270
well, there's a lot more coding coming along.

93
00:07:40,730 --> 00:07:41,680
I'll see in the next one.

94
00:07:42,290 --> 00:07:42,650
Bye bye.