1 00:00:00,180 --> 00:00:01,650 In this exercise, you're going 2 00:00:01,650 --> 00:00:04,050 to be creating a function 3 00:00:04,050 --> 00:00:09,050 that adds countries that you've visited into a Travel Log. 4 00:00:09,330 --> 00:00:10,960 Take a look in the starting code, 5 00:00:12,080 --> 00:00:14,820 there is a list of dictionaries called travel_log 6 00:00:14,820 --> 00:00:17,760 and it contains keys and values such 7 00:00:17,760 --> 00:00:20,850 as the country that was visited, the number of visits made 8 00:00:20,850 --> 00:00:24,480 and the cities that have been visited in that country. 9 00:00:24,480 --> 00:00:26,280 Now, the goal for you is 10 00:00:26,280 --> 00:00:29,394 without modifying this travel_ log directly 11 00:00:29,394 --> 00:00:33,810 you should create a function called add_new_country 12 00:00:33,810 --> 00:00:35,400 which takes three inputs 13 00:00:35,400 --> 00:00:38,229 the name of the country, the number of visits 14 00:00:38,229 --> 00:00:43,024 and the cities that have been visited in a list. 15 00:00:43,024 --> 00:00:45,240 Take a look in the Description box, 16 00:00:45,240 --> 00:00:46,920 look at the Example Input 17 00:00:46,920 --> 00:00:50,269 and what the Expected Output should look like 18 00:00:50,269 --> 00:00:53,055 and try to create your function. 19 00:00:53,055 --> 00:00:56,880 Remember, you shouldn't need to modify the travel_ 20 00:00:56,880 --> 00:00:59,250 log directly, and instead 21 00:00:59,250 --> 00:01:02,940 you should write the function that achieves this purpose 22 00:01:02,940 --> 00:01:05,099 because otherwise when you hit Submit 23 00:01:05,099 --> 00:01:07,770 your code is not going to pass the test. 24 00:01:07,770 --> 00:01:10,470 Look at the instructions carefully and give this a go. 25 00:01:17,790 --> 00:01:20,130 All right hopefully you managed to complete this 26 00:01:20,130 --> 00:01:23,220 and you want to check the solution together with me. 27 00:01:23,220 --> 00:01:27,001 If you didn't manage to complete it and you want to get a hint 28 00:01:27,001 --> 00:01:29,490 or see how I did it, then feel free to follow along 29 00:01:29,490 --> 00:01:32,220 and we can review the solution together. 30 00:01:32,220 --> 00:01:35,010 Now, the first step is to create our function 31 00:01:35,010 --> 00:01:37,863 which is called add_new_country. 32 00:01:38,850 --> 00:01:41,220 Next, we provide the three inputs 33 00:01:41,220 --> 00:01:46,050 to this function that's already been defined on line 24, 34 00:01:46,050 --> 00:01:48,390 that's the name of the country, 35 00:01:48,390 --> 00:01:50,884 the times that have been visited, 36 00:01:50,884 --> 00:01:53,940 and the cities that have been visited. 37 00:01:53,940 --> 00:01:57,660 Now notice I've named the inputs in the function 38 00:01:57,660 --> 00:02:01,950 on line 17 different from what's on line 24 39 00:02:01,950 --> 00:02:04,050 just so that you can tell the difference when 40 00:02:04,050 --> 00:02:06,302 I use it in the function. 41 00:02:06,302 --> 00:02:07,530 In reality 42 00:02:07,530 --> 00:02:10,380 you can call your inputs whatever it is you like, 43 00:02:10,380 --> 00:02:12,093 as long as it works, it's fine. 44 00:02:13,200 --> 00:02:15,555 Now, the next thing we need to do is to create 45 00:02:15,555 --> 00:02:19,592 a new dictionary, which I've called new_country 46 00:02:19,592 --> 00:02:24,592 and the first thing we do is we provide a key and value pair 47 00:02:25,680 --> 00:02:27,827 and put it into this new dictionary. 48 00:02:27,827 --> 00:02:32,490 We can write new_country[ ], inside the square 49 00:02:32,490 --> 00:02:35,790 brackets the key, which is country, and then 50 00:02:35,790 --> 00:02:39,030 we can set it equal to the value, which is the first input 51 00:02:39,030 --> 00:02:42,694 on line 17, the name of the country that has been visited. 52 00:02:42,694 --> 00:02:46,290 Next, we do the same thing with the other two inputs 53 00:02:46,290 --> 00:02:50,280 the number of visits and the cities that have been visited. 54 00:02:50,280 --> 00:02:53,700 So we're just passing the data through the function. 55 00:02:53,700 --> 00:02:54,533 The data comes 56 00:02:54,533 --> 00:02:59,100 into the function, and we can grab it by the names 57 00:02:59,100 --> 00:03:00,360 through the names of the input 58 00:03:00,360 --> 00:03:03,840 on line 17, and we insert them one by one into 59 00:03:03,840 --> 00:03:07,254 this new dictionary that we've created, called new_country. 60 00:03:07,254 --> 00:03:09,690 Finally, all we have to do to add it 61 00:03:09,690 --> 00:03:14,690 to our list is to use the append() method, so we grab hold 62 00:03:14,730 --> 00:03:18,870 of our travel_log list, write .append, and then 63 00:03:18,870 --> 00:03:23,280 inside the parentheses we can add what we want to append 64 00:03:23,280 --> 00:03:26,910 or what we want to add to the end of that list. 65 00:03:26,910 --> 00:03:29,700 And it is of course our new entry 66 00:03:29,700 --> 00:03:31,500 that new dictionary that we created 67 00:03:31,500 --> 00:03:35,070 which is called new_country, and that's all there is to it. 68 00:03:35,070 --> 00:03:37,540 We managed to grab hold of the inputs, 69 00:03:38,834 --> 00:03:41,580 put it into a new dictionary by key and value pairs 70 00:03:41,580 --> 00:03:46,110 and then insert it into the list of our travel_log. 71 00:03:46,110 --> 00:03:48,120 If you need to make any adjustments to your code 72 00:03:48,120 --> 00:03:49,370 go ahead and do that now.