1
00:00:00,300 --> 00:00:01,080
Hey guys,

2
00:00:01,080 --> 00:00:05,580
welcome to Day 47 of 100 Days of Code. Today

3
00:00:05,580 --> 00:00:09,600
we're going to be building a project that I personally find really useful.

4
00:00:10,680 --> 00:00:15,350
It's a Amazon price tracker project.

5
00:00:15,380 --> 00:00:17,390
So I don't know about you,

6
00:00:17,390 --> 00:00:22,310
but I find it much more time-efficient to go online and search for the thing

7
00:00:22,310 --> 00:00:25,580
that I need rather than have to go and browse through the shops,

8
00:00:25,880 --> 00:00:30,050
find the thing I want and I just find the whole shopping experience,

9
00:00:30,050 --> 00:00:33,170
really tiring. Whereas with buying stuff online,

10
00:00:33,170 --> 00:00:36,230
you can simply go on Amazon, type in the thing you want,

11
00:00:36,470 --> 00:00:39,470
and then a few days later you'll get it delivered straight to your door.

12
00:00:40,160 --> 00:00:44,720
But one of the things I've noticed with online shopping is that the prices of

13
00:00:44,720 --> 00:00:49,130
things vary dramatically from day to day. For example,

14
00:00:49,130 --> 00:00:53,690
one of the things I've been really tempted to buy is a instant pot.

15
00:00:53,960 --> 00:00:57,350
Um, it's basically it like a souped up pressure cooker.

16
00:00:57,950 --> 00:01:00,890
It can do all the normal things like cook your rice

17
00:01:01,190 --> 00:01:05,660
or work as a slow cooker, or pressure-cook your meat until it's really tender,

18
00:01:06,230 --> 00:01:11,230
but it can even do crazy stuff like bake a cake in the pressure cooker or make

19
00:01:12,980 --> 00:01:17,150
yogurt. This is something that I've had my eye on for a while,

20
00:01:17,180 --> 00:01:21,320
but I haven't really even able to pull the trigger just because I can't really

21
00:01:21,320 --> 00:01:26,320
justify paying $120 for something that I can sort of do with the other things

22
00:01:26,960 --> 00:01:30,980
I have, right? You can bake a cake with an oven, you can, um,

23
00:01:31,100 --> 00:01:32,540
you can make everything on the stove,

24
00:01:32,990 --> 00:01:35,420
but it's something that I've really been fascinated by 

25
00:01:35,420 --> 00:01:40,040
and I wonder if I could cut down the amount of time I spend cooking so I can do

26
00:01:40,040 --> 00:01:43,400
some other things like making Programming tutorials.

27
00:01:44,000 --> 00:01:49,000
But one of the things I've noticed about this item or a lot of items on Amazon

28
00:01:49,100 --> 00:01:51,650
is that the price really fluctuates.

29
00:01:52,010 --> 00:01:55,310
So I've been keeping my eye on this product for a while now

30
00:01:55,340 --> 00:01:59,540
and I've seen it go up and down even on a day to day basis sometimes.

31
00:02:00,080 --> 00:02:05,080
And there is a really cool website that I discovered called camelcamelcamel.com,

32
00:02:05,420 --> 00:02:08,660
where you can simply take a product's URL,

33
00:02:08,660 --> 00:02:13,430
so you select the size you want, the style, the item, whatever it may be,

34
00:02:13,490 --> 00:02:17,990
and then you take the URL and you paste it into camelcamelcamel.com

35
00:02:18,440 --> 00:02:21,350
and it will give you the price history of that 

36
00:02:21,380 --> 00:02:22,580
product. isn't that cool?

37
00:02:22,880 --> 00:02:27,880
So now you can look and get actual data on how much that product costs over the

38
00:02:28,790 --> 00:02:33,560
past few months or year and you can now see what was the lowest price,

39
00:02:33,860 --> 00:02:38,210
what was the highest price and see how it just fluctuates almost randomly.

40
00:02:38,660 --> 00:02:41,600
Now, normally I would think that on big sale days

41
00:02:41,660 --> 00:02:46,370
like black Friday or prime day, that you would get the cheapest price,

42
00:02:46,730 --> 00:02:51,020
but actually, that's not always the case. For example, in this case,

43
00:02:51,020 --> 00:02:55,400
the cheapest price for this item happened on May 25th,

44
00:02:55,760 --> 00:02:58,310
which is, I think, just a normal day.

45
00:02:58,310 --> 00:03:01,870
I don't really why it got price-dropped to that amount.

46
00:03:03,060 --> 00:03:08,060
So let's say that we have set a price in our mind at which point I'm ready to

47
00:03:09,150 --> 00:03:10,920
make a purchase. So for me,

48
00:03:11,400 --> 00:03:15,930
maybe if this item drops down from $119

49
00:03:16,020 --> 00:03:20,910
um, to let's say $99, then I'll actually buy it.

50
00:03:21,720 --> 00:03:24,870
Now we can actually do this using what we've learned,

51
00:03:25,290 --> 00:03:30,270
and then on that day, I get an email and it tells me Instant Pot price alert,

52
00:03:30,330 --> 00:03:35,250
the product price is now $99.99 below your target price, go ahead and buy now.

53
00:03:35,850 --> 00:03:40,350
So this is basically the functionality that we want to build using our knowledge

54
00:03:40,350 --> 00:03:42,150
of Python and web scraping.

55
00:03:42,930 --> 00:03:47,400
And our Python bot is going to be the one that's going to be constantly checking

56
00:03:47,400 --> 00:03:49,710
for the price. And when the time is right,

57
00:03:49,740 --> 00:03:53,280
it's going to be the one that's going to alert us, using an email,

58
00:03:53,460 --> 00:03:57,900
telling us to buy so that we don't have to spend every day looking at the

59
00:03:57,900 --> 00:03:58,440
website,

60
00:03:58,440 --> 00:04:02,850
checking the price and doing something that our Python bot could do by itself.

61
00:04:04,170 --> 00:04:09,090
The idea here is our little Python body is going to have a set time, let's say 

62
00:04:09,090 --> 00:04:13,290
9:00 AM every day where it checks that URL that we got.

63
00:04:13,740 --> 00:04:18,000
So it's going to look at a specific thing on that webpage,

64
00:04:18,029 --> 00:04:22,290
which is the price. So at the moment, it's right, registering as 

65
00:04:22,290 --> 00:04:24,690
$119.99

66
00:04:25,110 --> 00:04:30,110
and the moment when it checks that price and it sees 99.9 something,

67
00:04:31,290 --> 00:04:34,920
so anything that's below our set target of a hundred dollars,

68
00:04:35,280 --> 00:04:39,480
then it's going to send us an email and give us an alert.

69
00:04:40,440 --> 00:04:45,000
So then we can go to the URL and purchase is that product.

70
00:04:45,300 --> 00:04:47,040
Instead of having to check it out ourselves,

71
00:04:47,370 --> 00:04:50,760
we now get notified when our condition is met.

72
00:04:51,720 --> 00:04:55,350
As you can imagine, this is going to involve a little bit of web scraping,

73
00:04:55,500 --> 00:05:00,500
where we try to get hold of the value of this price and we turn it into a number

74
00:05:02,250 --> 00:05:07,230
and we check it against our target price. And then when the conditions are met,

75
00:05:07,290 --> 00:05:10,950
then we use the SMTP module to send ourselves an email.

76
00:05:11,880 --> 00:05:14,100
So that's the goal of today's project

77
00:05:14,250 --> 00:05:18,210
and I think if you're somebody like me who buys a lot of stuff online,

78
00:05:18,510 --> 00:05:20,940
then this is going to be pretty interesting for you.

79
00:05:21,090 --> 00:05:23,970
And I hope that will actually come in handy at some point as well.

80
00:05:24,840 --> 00:05:29,370
So head over to the next lesson and let's get started building our Amazon price

81
00:05:29,370 --> 00:05:30,090
tracking bot.