1 00:00:02,130 --> 00:00:04,620 This video, we will build an English dictionary. 2 00:00:04,830 --> 00:00:10,620 This is a program which gets from the user a word in English and in three turns the definition of that 3 00:00:10,620 --> 00:00:11,880 word in English. 4 00:00:12,240 --> 00:00:15,330 Now we will be using Jason -.So for this. 5 00:00:15,750 --> 00:00:20,160 So Jason, he said, other formats and it's similar to a Python dictionary. 6 00:00:20,400 --> 00:00:26,670 So in this video, you learn how to pass that these data and extract information from those data. 7 00:00:28,050 --> 00:00:33,780 So the idea is that the data said the dictionary itself is stored in these JSON delta and this is a 8 00:00:33,780 --> 00:00:34,110 file. 9 00:00:34,110 --> 00:00:37,260 You can find this at the end of the lecture resources. 10 00:00:38,280 --> 00:00:42,500 So you need to place it in your project directory and they look like this. 11 00:00:42,510 --> 00:00:44,760 Be careful not to change anything here. 12 00:00:45,270 --> 00:00:50,220 Otherwise, the format may be corrupted and Python will not recognize that. 13 00:00:50,580 --> 00:00:52,410 So you will get some errors later. 14 00:00:53,310 --> 00:01:00,720 What we have here is a big dictionary, and this dictionary is made of keys and values. 15 00:01:01,680 --> 00:01:10,980 So that's the value of the first key of the other pair key and value up to here. 16 00:01:12,240 --> 00:01:14,060 So the key is a word. 17 00:01:14,070 --> 00:01:20,100 The value is a list which may contain one or more definitions for that two words. 18 00:01:21,180 --> 00:01:22,470 So these are adjacent. 19 00:01:22,810 --> 00:01:24,960 And as I say, that these are similar to Python. 20 00:01:25,200 --> 00:01:32,940 Now let's go to Python painful JSON, which is a Python standard library to parse Jason data. 21 00:01:33,570 --> 00:01:42,180 And then the next thing we should do is apply that JSON that loads method and the load method expects 22 00:01:43,020 --> 00:01:53,930 a file object as inputs so we can create a file object in here file equal to open data. 23 00:01:54,080 --> 00:02:01,230 Jason So that will create a file in read mode and we provide that file in here. 24 00:02:01,710 --> 00:02:03,690 And if you print that up. 25 00:02:07,570 --> 00:02:11,680 You're going to get all those that are printed out in your terminal. 26 00:02:12,490 --> 00:02:15,040 So it's the same delta as we saw in here. 27 00:02:16,180 --> 00:02:19,000 And it is a Python dictionary. 28 00:02:19,360 --> 00:02:26,650 So if you print out the type stop print, you're going to see class DeCoutere. 29 00:02:27,520 --> 00:02:36,520 That means you can now access any of the keys, such as islands. 30 00:02:40,110 --> 00:02:43,740 So if you access the key islands, you get a list. 31 00:02:44,250 --> 00:02:49,140 So this list happens to have one and two items. 32 00:02:49,770 --> 00:02:52,260 So there are two definitions for the word islands. 33 00:02:54,270 --> 00:02:58,950 So I would like to make this more robust and create a function. 34 00:03:02,200 --> 00:03:15,040 So define, define this will get a word as input if the words in Delta eight to the return. 35 00:03:17,470 --> 00:03:19,480 The definition of that word, sorry. 36 00:03:20,020 --> 00:03:21,340 Words as a variable. 37 00:03:23,080 --> 00:03:32,440 So that our words will be like Delta Island, for example, Delta Sun, etc. So this will happen if 38 00:03:32,980 --> 00:03:41,590 the world is in that dictionary, otherwise else we want to return none. 39 00:03:43,060 --> 00:03:45,670 But are you going to amidst this expression? 40 00:03:45,670 --> 00:03:52,660 Because if the if condition is not ever alluded to by default, this function will return none. 41 00:03:53,640 --> 00:03:56,430 So there is no need to return, not explicitly. 42 00:03:57,840 --> 00:04:04,680 So, no, we can see we can get the words from the user base into a word 43 00:04:07,590 --> 00:04:10,470 and then we get the definition from the defined function. 44 00:04:10,650 --> 00:04:11,800 But passing that word? 45 00:04:12,270 --> 00:04:16,589 So word goes in here as an input. 46 00:04:18,850 --> 00:04:27,790 To the function, call and print out the definition, and so, yeah, that looks fine. 47 00:04:28,240 --> 00:04:30,670 I'll remove this print statement up here. 48 00:04:31,090 --> 00:04:33,730 Remove that and run. 49 00:04:35,630 --> 00:04:40,550 So police enter a woods island and we get this list. 50 00:04:41,270 --> 00:04:45,680 What if we put a word which doesn't exist? 51 00:04:47,220 --> 00:04:53,010 Such as Iceland with the set, so we get none. 52 00:04:53,430 --> 00:05:02,220 If you want to improve this article, you could simply do here if definition print. 53 00:05:04,860 --> 00:05:07,090 Definition else. 54 00:05:07,640 --> 00:05:13,140 Brent Woods was not fond and run. 55 00:05:15,810 --> 00:05:21,800 And the word ises and word was not found is written as. 56 00:05:24,410 --> 00:05:30,680 Another improvement of life to make here is that, you know, if you answer the correct words such as 57 00:05:30,680 --> 00:05:33,890 Ireland boss, you enter a capital I. 58 00:05:34,880 --> 00:05:37,010 And you press, enter this race. 59 00:05:37,200 --> 00:05:42,530 And it was not fun because Ireland's here is in lowercase letters. 60 00:05:42,890 --> 00:05:49,430 So Ireland with a capital I and Ireland with a low case, I are not the same. 61 00:05:50,390 --> 00:05:52,400 So you want to change that. 62 00:05:52,910 --> 00:06:02,050 You want to see if world is lower, so you get the words of the user and you convert it into lowercase. 63 00:06:02,060 --> 00:06:07,190 So what you check in the delta is the lowercase version of that's user input. 64 00:06:08,180 --> 00:06:18,800 So if you were on that answer, I along with uppercase, I enter, Oh, we got an error in line eight. 65 00:06:19,040 --> 00:06:22,180 Obviously, we need to cover that in here, too. 66 00:06:22,370 --> 00:06:29,380 So instead of doing that, just say words is equal to words, not lower. 67 00:06:29,930 --> 00:06:36,860 So this variable now is converted into a lowercase for all the occurrences of the words variable inside 68 00:06:36,860 --> 00:06:37,460 this function. 69 00:06:37,850 --> 00:06:42,620 So run that again, try again, islands. 70 00:06:42,620 --> 00:06:46,130 And this time we get this list of definitions. 71 00:06:46,820 --> 00:06:51,530 Would you like to improve the ultimate even further by removing this brackets? 72 00:06:51,950 --> 00:06:58,760 Well, for that, instead of printing either definition, which is a list you want to iterate and see 73 00:06:58,760 --> 00:07:01,830 the list for item in definition. 74 00:07:02,360 --> 00:07:03,560 So definition is the least. 75 00:07:03,560 --> 00:07:08,510 We trade over the items and we print out each item in here run. 76 00:07:11,640 --> 00:07:19,170 And so now we have no brackets, so every line is printed out as an individual sentence. 77 00:07:19,800 --> 00:07:21,300 And that's concludes this video. 78 00:07:21,330 --> 00:07:21,900 Thank you. 79 00:07:21,930 --> 00:07:22,650 I'll see you later.