WEBVTT 00:00.990 --> 00:03.930 Next hour, a few questions with the string operations. 00:04.320 --> 00:12.150 So here we have a problem where you want to change keys to location, location to upper case, and a 00:12.150 --> 00:18.600 problem where you have to do all the string modifications to create this. 00:18.600 --> 00:21.810 Turn this into a simple, understandable sentence. 00:22.530 --> 00:29.790 And the third one is where you need to identify the numbers from the string and then find the average 00:29.790 --> 00:33.090 and some of those numbers ignoring all the characters. 00:33.810 --> 00:35.040 So you can pull boards. 00:35.040 --> 00:37.440 Do we do now and then solve the questions? 00:37.680 --> 00:41.670 I will be explaining the solutions after a few seconds. 00:53.660 --> 00:55.850 I hope you would have solved these questions. 00:56.150 --> 01:00.440 So now let's have a look at the solutions for the scene. 01:00.920 --> 01:08.600 The first question is where we need to find out the conversion of operatives to lower keys and lower 01:08.600 --> 01:09.650 keys to a bucket. 01:10.130 --> 01:18.770 If I would have been a new fortune to Vitan, I would have identified by searching through the entire 01:19.160 --> 01:24.480 list of characters here, I would have gone to all these fringe characters and checked. 01:24.860 --> 01:32.510 If these characters were screened and then converted the uppercase lowercase and then lowercase two 01:32.510 --> 01:33.110 of the piece. 01:33.560 --> 01:40.670 But this is a very simple question, because Python already provides a function which allows you to 01:40.670 --> 01:45.860 convert and to swap the cases so we can directly use that function. 01:46.100 --> 01:48.250 So I can simply say print 01:51.110 --> 01:51.440 string. 01:51.650 --> 01:53.140 Don't swap it. 01:53.540 --> 02:02.180 So we have string dot swap keys and we simply run the function. 02:03.590 --> 02:11.420 And here you can see we have converted all the uppercase to law cases and all the normal cases to other 02:11.420 --> 02:13.100 cases, as simple as that. 02:13.160 --> 02:14.210 Nothing complicated. 02:15.320 --> 02:18.680 Next, we have this particular sentence here. 02:18.920 --> 02:22.460 Now, you can see there are a lot of problems with these sentences. 02:22.730 --> 02:28.180 First is that you can read the sentence also that police losi are typing. 02:28.190 --> 02:32.960 She has used special characters in place of spaces, sometimes added. 02:33.230 --> 02:36.030 She does not even care about tendance cases. 02:36.050 --> 02:38.900 Can you please help us connect this text? 02:39.440 --> 02:44.960 So here you can see she has used a lot of special characters at different places. 02:46.310 --> 02:52.250 And these are special characters are used in place of space. 02:53.630 --> 02:56.900 So we need to handle all these one by one. 02:59.660 --> 03:04.370 So let's simply get the print of this. 03:06.980 --> 03:09.880 And we want to obtain different words from this. 03:09.880 --> 03:12.230 So we see text. 03:13.980 --> 03:23.420 From the floor, thanks in text. 03:24.660 --> 03:31.650 Now, if we do it this way, so it will try to get each character out of it, but we don't want to get 03:31.650 --> 03:33.000 it does we want votes. 03:33.390 --> 03:34.560 So we split it 03:39.420 --> 03:41.640 on the special accountability we are looking for. 03:41.640 --> 03:43.080 So we split it on hash. 03:43.950 --> 03:46.110 Now we need to convert this into a list as well. 03:49.490 --> 03:50.320 Let's get the result. 03:50.690 --> 03:57.380 So here you can see that these words have been split up into different words. 03:58.040 --> 04:00.770 Now we want to join this. 04:00.980 --> 04:05.810 We want to join these back together so that we can go ahead with the next function. 04:06.050 --> 04:08.210 So instead of this, let's simply say. 04:11.140 --> 04:18.820 Space don't join and inside join. 04:22.960 --> 04:23.710 We give. 04:31.970 --> 04:37.040 Now we have this now similarly, we want to split on Aderet and get this together. 04:37.520 --> 04:38.810 So we simply say 04:44.480 --> 04:46.130 don't join. 04:54.160 --> 04:54.700 These. 05:00.280 --> 05:02.990 And you want to join these after splitting it. 05:03.640 --> 05:05.620 So this was my first one. 05:10.800 --> 05:14.340 Make sure that you have all the jackets in place. 05:14.870 --> 05:16.170 So no, I slipped it 05:19.410 --> 05:20.400 on Anthony 05:23.550 --> 05:24.240 and then. 05:28.470 --> 05:30.390 Let's again check the brackets here. 05:32.130 --> 05:33.410 This is for Brent. 05:37.140 --> 05:39.000 Now, the Tascam minded on this. 05:39.660 --> 05:42.940 Now, again, I want to do it one more time. 05:42.960 --> 05:44.550 I have done it for hash. 05:44.550 --> 05:46.080 I have done it for this. 05:46.440 --> 05:49.170 Now let's capitalize these. 05:50.670 --> 05:54.480 So I will simply say, 05:57.390 --> 05:57.870 Don. 06:08.860 --> 06:11.500 So here is your correct sentence. 06:12.220 --> 06:17.560 I have done this all together in one single line of code. 06:17.890 --> 06:20.980 You can split this phone into multiple steps. 06:21.280 --> 06:27.130 You can use different operations instead of using what what I have used as solutions can be different. 06:28.090 --> 06:30.730 But this is just one of the solutions which you can track. 06:32.440 --> 06:35.620 Next question is we have this particular stream. 06:35.620 --> 06:41.200 We want to retrieve all the numbers from the string, and then we want to find the average in some of 06:41.200 --> 06:41.710 the numbers. 06:42.070 --> 06:48.430 Now, because I have this string, I have a function called is numeric, which allows me to find out 06:48.700 --> 06:52.120 if a particular character in the string is a number or not. 06:54.880 --> 06:57.380 So let's get each and every character out of there. 06:57.430 --> 07:03.430 So let's see if we were to let's create a list. 07:03.790 --> 07:12.700 So we say X four kicks in a little strange. 07:16.690 --> 07:18.400 So it gives me all the characters. 07:18.700 --> 07:25.210 Now I want to get the characters, which are only numeric so I can simply apply if condition here. 07:25.210 --> 07:30.970 So I see if x dot is numeric. 07:32.620 --> 07:39.040 This will check if a character is numeric and then it will return that guy like this. 07:39.700 --> 07:42.730 Now I have all the characters presentencing. 07:43.060 --> 07:45.040 And I can simply get these. 07:45.040 --> 07:45.850 I'm playing these. 07:45.850 --> 07:47.050 I'm an average of these. 07:47.530 --> 07:52.180 So let's find these some making him simple. 07:52.180 --> 07:53.260 Use the function some. 07:54.190 --> 07:57.690 We're finding this one now for finding the average. 07:57.700 --> 08:07.450 I can use the formula that is sum divided by the length of the characters or the number of occurrences. 08:07.780 --> 08:14.350 So I can simply say length of these, which gives me how many number of characters numbers I have. 08:14.800 --> 08:16.930 So this is what we get. 08:17.410 --> 08:27.130 Now, if you can see, this says unsupported operand, which is an integer. 08:27.340 --> 08:30.490 So it is still considering X2, B and string. 08:30.730 --> 08:32.710 So I need to convert this into an integer. 08:32.720 --> 08:33.880 So I say eight. 08:37.750 --> 08:39.610 And will we get the answer? 08:41.650 --> 08:46.580 So I hope you got this correct in case these were not correct for you. 08:46.600 --> 08:49.060 You will be waiting for them in these questions. 08:49.060 --> 08:50.710 You can keep on practicing. 08:50.710 --> 08:54.580 And over the time, you'll have an expertise on these.