1 00:00:01,480 --> 00:00:08,560 In the previous video, we use the enumerate function to access the items, but also the indexes of 2 00:00:09,280 --> 00:00:10,420 the to do list. 3 00:00:10,420 --> 00:00:13,570 And we ended up with this output. 4 00:00:13,600 --> 00:00:17,080 Now we want to improve this output. 5 00:00:17,200 --> 00:00:20,830 So we want to define if we want a space or not. 6 00:00:21,130 --> 00:00:22,960 The answer here is f string. 7 00:00:22,970 --> 00:00:25,870 So let me demonstrate to you what f strings are. 8 00:00:27,220 --> 00:00:33,550 So let's suppose we are in the first iteration of the loop, and in that current iteration, perhaps 9 00:00:33,550 --> 00:00:40,600 index is one and the item variable is the string through. 10 00:00:41,910 --> 00:00:42,450 Right. 11 00:00:42,690 --> 00:00:45,180 We have two variables now. 12 00:00:45,180 --> 00:00:50,730 How do we get a text to look something like, you know, one? 13 00:00:52,490 --> 00:00:56,540 Throw or one throw like that. 14 00:00:57,200 --> 00:00:59,600 How do we construct a text like that? 15 00:00:59,870 --> 00:01:02,960 Well, the answer is f strings, so let's say. 16 00:01:04,140 --> 00:01:10,620 The ro variable is equal to F and double quotes. 17 00:01:11,400 --> 00:01:12,380 Double quotes here. 18 00:01:12,390 --> 00:01:13,400 Double quotes here. 19 00:01:13,410 --> 00:01:16,760 So inside goes the F string. 20 00:01:16,770 --> 00:01:18,150 What is an F string? 21 00:01:18,150 --> 00:01:23,130 Well, an F string is something that contains these brackets. 22 00:01:23,130 --> 00:01:27,720 And in these curly brackets you can enter a variable. 23 00:01:28,380 --> 00:01:34,350 So let's say you enter index and then after that perhaps you want a dash, perhaps you want to smile 24 00:01:34,350 --> 00:01:34,680 you. 25 00:01:35,940 --> 00:01:40,170 And after that, you may want another valuable item, for example. 26 00:01:41,790 --> 00:01:46,170 Execute that and see that ROE now is the string. 27 00:01:46,770 --> 00:01:49,380 So what's happened is that index. 28 00:01:50,280 --> 00:01:55,020 So that part was replaced with the value of the index variable, which is one. 29 00:01:55,350 --> 00:01:57,120 Then we have a literal string. 30 00:01:57,120 --> 00:02:00,330 So this part here is just characters. 31 00:02:00,330 --> 00:02:02,880 They are not inside curly brackets. 32 00:02:03,950 --> 00:02:06,170 So explicit, literal string. 33 00:02:07,160 --> 00:02:08,949 It shows like that as it is. 34 00:02:08,960 --> 00:02:16,100 And then this part is also replaced by the actual value of the item variable. 35 00:02:16,940 --> 00:02:18,590 So that's what we get. 36 00:02:18,620 --> 00:02:21,140 We can make use of this now and here. 37 00:02:22,880 --> 00:02:30,350 So let's say a row is equal to F again and index a dash and item. 38 00:02:30,350 --> 00:02:31,490 That should be enough. 39 00:02:33,560 --> 00:02:35,360 Oh, and then we need to print row. 40 00:02:35,390 --> 00:02:38,960 Of course, if you want to show it on the command line. 41 00:02:39,080 --> 00:02:41,330 Otherwise, you you'll not get any output. 42 00:02:41,990 --> 00:02:51,590 So add clean and scrape show and that's the output. 43 00:02:52,220 --> 00:02:54,230 So I think it looks better now. 44 00:02:54,680 --> 00:02:56,580 Feel free to use any characters here. 45 00:02:56,600 --> 00:02:58,340 So not a dash, but maybe a dot. 46 00:02:58,340 --> 00:02:59,780 Make sense more for you. 47 00:03:01,040 --> 00:03:03,350 And that's about F strings. 48 00:03:03,350 --> 00:03:10,790 So like that, you can place as many variables inside the F string as you want and you always need to 49 00:03:10,790 --> 00:03:11,340 use F. 50 00:03:11,360 --> 00:03:17,010 Otherwise, this string will not accept those curly brackets. 51 00:03:17,060 --> 00:03:18,700 Well, it will accept them. 52 00:03:18,710 --> 00:03:21,710 You can do like that. 53 00:03:22,590 --> 00:03:28,710 Index, but that will be read as a literal string. 54 00:03:28,710 --> 00:03:35,650 So index will not be recognized as a variable if you don't have that f in front of the double quotes. 55 00:03:35,670 --> 00:03:38,160 I hope this makes sense and I'll see you later.