1 00:00:00,810 --> 00:00:01,950 In this exercise, 2 00:00:01,950 --> 00:00:04,470 the goal is to do some debugging. 3 00:00:04,470 --> 00:00:07,290 We're going to identify what's wrong with the code 4 00:00:07,290 --> 00:00:10,830 and fix it so that it works as expected. 5 00:00:10,830 --> 00:00:13,410 Now the goal is when you hit Run Code 6 00:00:13,410 --> 00:00:16,890 it should print out the example output exactly 7 00:00:16,890 --> 00:00:19,080 as seen in the description pane. 8 00:00:19,080 --> 00:00:20,790 If the description pane is not open 9 00:00:20,790 --> 00:00:22,230 remember you can always click 10 00:00:22,230 --> 00:00:25,740 on that big i button in order to bring it up. 11 00:00:25,740 --> 00:00:29,040 So you might see a certain number of errors 12 00:00:29,040 --> 00:00:30,990 when you hit the Run Code button 13 00:00:30,990 --> 00:00:34,140 without making any changes to the code. 14 00:00:34,140 --> 00:00:36,240 And based on what those errors tell you 15 00:00:36,240 --> 00:00:39,780 or based on your knowledge of the print statement in Python, 16 00:00:39,780 --> 00:00:41,700 you should be able to fix the code 17 00:00:41,700 --> 00:00:44,130 so that it works correctly. 18 00:00:44,130 --> 00:00:45,840 Once the output 19 00:00:45,840 --> 00:00:49,380 in the output pane matches the example output exactly 20 00:00:49,380 --> 00:00:51,780 then you can feel free to hit the Submit button 21 00:00:51,780 --> 00:00:53,580 and check your code. 22 00:00:53,580 --> 00:00:54,870 And once you're done, 23 00:00:54,870 --> 00:00:55,980 or if you get stuck, 24 00:00:55,980 --> 00:00:57,780 remember you can hit the Next buttonâž¡ 25 00:00:57,780 --> 00:01:00,360 and I'll run through the solution together with you. 26 00:01:00,360 --> 00:01:01,503 So have a go now. 27 00:01:06,540 --> 00:01:08,460 Let's go through the solution together. 28 00:01:08,460 --> 00:01:10,440 In the first print statement 29 00:01:10,440 --> 00:01:14,460 we're missing a double quote before the word "Day". 30 00:01:14,460 --> 00:01:17,550 That way we can tell the computer 31 00:01:17,550 --> 00:01:20,280 which part of our entire line 32 00:01:20,280 --> 00:01:22,740 is the text that we want printed out. 33 00:01:22,740 --> 00:01:24,930 Now, if those double quotes are not matched, 34 00:01:24,930 --> 00:01:28,170 such as in the error code to begin with, 35 00:01:28,170 --> 00:01:29,550 then the computer doesn't know 36 00:01:29,550 --> 00:01:31,590 which part should be printed out. 37 00:01:31,590 --> 00:01:33,900 By adding that double quote 38 00:01:33,900 --> 00:01:36,540 we fix the first print statement. 39 00:01:36,540 --> 00:01:38,460 In the second print statement, 40 00:01:38,460 --> 00:01:42,870 the problem is that we have only double quotes. 41 00:01:42,870 --> 00:01:44,670 The way that double quotes work 42 00:01:44,670 --> 00:01:46,410 is the computer's going to look 43 00:01:46,410 --> 00:01:49,170 for the first double quote and assume 44 00:01:49,170 --> 00:01:52,980 what's between that and the second double quote 45 00:01:52,980 --> 00:01:56,550 that it sees as the text you want to print. 46 00:01:56,550 --> 00:01:58,470 Now, this is complicated by the fact 47 00:01:58,470 --> 00:02:00,630 that we've got that plus symbol 48 00:02:00,630 --> 00:02:03,390 that we want to show in our print statement. 49 00:02:03,390 --> 00:02:07,500 The fix for this is to alternate the type of quote. 50 00:02:07,500 --> 00:02:10,560 So if we change the outer double quotes, 51 00:02:10,560 --> 00:02:13,470 the one just before the word "String" 52 00:02:13,470 --> 00:02:17,700 and just after the full stop to single quotes 53 00:02:17,700 --> 00:02:22,200 then our entire print statement makes sense to the computer 54 00:02:22,200 --> 00:02:26,850 and it sees that whole text inside the print statement 55 00:02:26,850 --> 00:02:28,710 as one block of text, 56 00:02:28,710 --> 00:02:30,930 and it knows that we want to print out 57 00:02:30,930 --> 00:02:32,880 the double quotes around the plus sign. 58 00:02:34,710 --> 00:02:36,990 In the third print statement, 59 00:02:36,990 --> 00:02:38,790 there is an extra indentation 60 00:02:38,790 --> 00:02:41,190 at the beginning of the line, 61 00:02:41,190 --> 00:02:42,930 and remember that in Python 62 00:02:42,930 --> 00:02:45,780 it's very sensitive to indentation. 63 00:02:45,780 --> 00:02:50,040 It views that as separate from no indentation. 64 00:02:50,040 --> 00:02:51,720 So it's really important 65 00:02:51,720 --> 00:02:55,290 that we keep our code files organized, 66 00:02:55,290 --> 00:02:56,123 and in this case 67 00:02:56,123 --> 00:02:59,070 if you simply just remove that extra indentation 68 00:02:59,070 --> 00:03:01,560 and make that print statement start 69 00:03:01,560 --> 00:03:03,030 at the beginning of the line, 70 00:03:03,030 --> 00:03:05,493 then we can fix this error. 71 00:03:06,630 --> 00:03:09,060 In the final error, 72 00:03:09,060 --> 00:03:12,510 we've got an extra opening parentheses 73 00:03:12,510 --> 00:03:14,970 in the print statement, 74 00:03:14,970 --> 00:03:17,040 and simply by removing it, 75 00:03:17,040 --> 00:03:20,160 it makes our code make sense. 76 00:03:20,160 --> 00:03:22,980 A print statement is comprised of the word "print", 77 00:03:22,980 --> 00:03:24,060 the opening bracket "(" , 78 00:03:24,060 --> 00:03:25,470 and the closing bracket ")" 79 00:03:25,470 --> 00:03:29,430 and what goes inside that is just the text we want to print. 80 00:03:29,430 --> 00:03:32,760 We can't have any extra symbols or extra code. 81 00:03:32,760 --> 00:03:35,160 As you get along with writing more code, 82 00:03:35,160 --> 00:03:38,160 you'll become more familiar with the format 83 00:03:38,160 --> 00:03:40,140 and the way that code is written. 84 00:03:40,140 --> 00:03:42,900 So don't worry if you got stuck on some of these errors, 85 00:03:42,900 --> 00:03:44,700 it's just the learning process. 86 00:03:44,700 --> 00:03:45,870 And as long as you can go back 87 00:03:45,870 --> 00:03:49,290 and fix your code and understand why it now works 88 00:03:49,290 --> 00:03:51,213 then that's all I want to see.