WEBVTT 00:01.220 --> 00:10.010 Hello, in this session, we would be discussing about apples to apples, immutable in nature, so we 00:10.010 --> 00:16.790 can consider apples just like list, but with the properties of immutability. 00:17.570 --> 00:26.510 Now, when we talk about immutable, immutable means that the element of that particular data structure, 00:26.510 --> 00:35.390 which is dapple here in this case, cannot be modified so that others can have new people object, such 00:35.390 --> 00:36.130 as list. 00:36.320 --> 00:48.020 So the elements of the couple could be mutable in nature, but the element cannot be modified as such. 00:49.220 --> 00:57.110 These Stupples elements cannot be changed, but it's multiple elements can be changed, so let us see 00:57.110 --> 00:58.820 how this entire thing works. 00:59.880 --> 01:08.700 In case of couples, we can define couples in this particular format, giving people list inside this, 01:09.510 --> 01:17.430 or we can provide the object separated by comma inside bases, which would create a new double for us. 01:18.410 --> 01:26.330 Now, another thing which we could do is we can just give the couple's name and the account, which 01:26.330 --> 01:33.350 would provide us the number of elements present in that, and with the index, we can add value to a 01:33.350 --> 01:34.140 particular topic. 01:34.400 --> 01:37.240 So let us see how this entire thing works. 01:40.410 --> 01:49.380 So let us first create a topic, so let that happen in the city and we wanted to have several elements, 01:49.680 --> 01:50.820 so let us say. 01:52.730 --> 01:54.300 I want to have this number. 01:57.400 --> 02:00.900 And I want to have a springboard to present Philip. 02:04.330 --> 02:09.940 And one of the number, the intimate, so this is my double. 02:10.420 --> 02:14.240 Now I can go into my company using fake. 02:15.110 --> 02:18.150 So here you can see this couple has been created. 02:18.160 --> 02:19.810 I can check the type of. 02:25.420 --> 02:32.910 So it is a topic now we can create a couple with another method. 02:34.920 --> 02:38.070 Here we are simply giving the values common, separated. 02:38.580 --> 02:43.800 We can also give the values, comma, separated inside of basis. 02:47.060 --> 02:53.050 So this is just the same thing, but only additional bases have been provided here. 02:54.410 --> 03:03.110 Apart from this, I can create another couple by having a couple inside this, so when we can do is 03:03.980 --> 03:12.410 let's say I want to create a you and inside this stuff, I want to have that ability and I want to have 03:12.410 --> 03:15.110 another double which got these values. 03:15.110 --> 03:15.690 Three, four. 03:15.720 --> 03:17.810 Obama seventy eight. 03:19.200 --> 03:20.580 And let me bring to you. 03:22.500 --> 03:28.590 So here I have unestablished, which has supples inside this. 03:31.230 --> 03:39.600 Now, let's try to see the properties of immutability in case that happened, so when we say immutability, 03:39.600 --> 03:43.480 it means that the elements of the couple can not be replaced. 03:44.280 --> 03:48.980 So let us stay if we want to have value. 03:48.990 --> 03:49.710 See you. 03:50.800 --> 03:53.890 And I want to create a new value inside this city. 03:53.910 --> 03:58.060 I want to take the index value, let's say I want to check the index, see why. 03:58.660 --> 04:00.460 And I just done this. 04:00.730 --> 04:05.320 So you can see I get the value of the index one in. 04:07.240 --> 04:14.800 Now, let's I want to add another value to this topic, I want to add value in the index to. 04:16.290 --> 04:16.860 So. 04:18.430 --> 04:23.950 Let's see if the value exists or not, so it does not exist, double indexes out of range. 04:24.390 --> 04:33.460 Now, let us try to add a simple number inside this, which is immutable in nature, so that if an object 04:33.460 --> 04:42.940 does not support assignment, which means that once the tuple has been created, I cannot really add 04:42.940 --> 04:44.350 another element to this. 04:46.260 --> 04:53.330 Let us see another thing, let us try to modify the element which is already existing, so let us try 04:53.330 --> 04:57.310 to replace some element in the self. 04:57.330 --> 04:59.720 So let us check the value in the. 05:01.430 --> 05:04.730 Three, let let's see what is value in these three. 05:05.090 --> 05:12.890 Well, the value in these three now let me try to put another value in and save fifty for. 05:14.160 --> 05:22.380 And you can see that the double object does not support the assignment, so I cannot assign the value 05:22.380 --> 05:26.670 for people to the third element in the double. 05:27.870 --> 05:33.100 Now, let us bring to you again here is that apathy? 05:33.510 --> 05:36.180 Now, let us try to do one thing. 05:36.390 --> 05:39.250 Let us try a few things. 05:39.250 --> 05:42.880 See this string. 05:43.740 --> 05:47.050 Let us see if the string value can be replaced with that. 05:47.200 --> 05:51.420 No value cannot be replaced, but legacy for string value can be replaced. 05:52.710 --> 05:53.400 Now. 05:55.330 --> 05:57.580 This is index zero one two. 05:58.900 --> 06:05.800 And in the inside this I want to I want to pull the string itself so it is not a very huge. 06:07.830 --> 06:14.160 Change, which I want to bring in inside instead of Halo, I just want to put in high and this is again, 06:14.160 --> 06:15.040 not supporting. 06:16.440 --> 06:25.010 So you can see the property of the couple is that the values are present inside this, if any index 06:25.050 --> 06:26.380 cannot really be replaced. 06:26.610 --> 06:30.880 Now, let us give this to you inside this new couple. 06:31.260 --> 06:33.570 We have a value. 06:35.620 --> 06:37.570 Thirty four, former seventy eight. 06:38.870 --> 06:40.670 So let me try to replace that. 06:41.660 --> 06:53.120 So let me try to modify this on inside you one, I want to go to another value saying I want to go with 06:53.120 --> 06:53.360 you. 06:54.460 --> 06:56.660 So this is, again, not supportive. 06:57.040 --> 07:03.220 Now let us try to do another modification, so let us try to modify this value. 07:04.060 --> 07:07.330 So first we try to retrieve this particular value. 07:08.740 --> 07:17.380 So let us see you and inside this view, I want to get the first one with the terrific almost seven 07:17.600 --> 07:22.300 eight and I want to get the zero one insight this just thirty four. 07:22.450 --> 07:25.650 And I want to assign a value to to it. 07:26.320 --> 07:32.420 So this again is not possible because this is again. 07:33.820 --> 07:37.660 Now let us try on a third, let us try on the radiation. 07:38.710 --> 07:43.780 So let us create a double the one and now this time this stuff. 07:43.990 --> 07:47.430 We have values like one, two. 07:48.160 --> 07:51.640 Then let me put a list in it. 07:51.790 --> 07:55.270 One, two, three, four, five. 07:56.690 --> 07:58.220 And now let me put. 08:00.060 --> 08:01.140 And at the in. 08:03.380 --> 08:06.620 Hello, and let me put. 08:07.810 --> 08:12.550 Another couple in it, so we have already seen the example of what happened inside this. 08:18.620 --> 08:27.890 But still, let's try this again, so in this one, this is the one for me now in this one, let us 08:27.890 --> 08:31.970 say I want to modify this element, which is a list. 08:32.480 --> 08:37.940 So let us retrieve this was 41 and inside the one. 08:37.940 --> 08:40.310 I want to get the second index. 08:41.400 --> 08:42.730 Which is the list itself. 08:43.080 --> 08:47.920 Now, let me try to modify this by assigning another list instead of this one. 08:48.330 --> 08:54.600 So let me put in one, two, three, four, giving the series also the same. 08:55.670 --> 09:03.770 And let me try this, so this is, again, not supported, so this means that no matter what element 09:03.770 --> 09:09.000 is present in adopting, that element cannot be replaced either. 09:09.020 --> 09:10.130 It is a no. 09:10.430 --> 09:11.900 It is us doing. 09:12.290 --> 09:13.640 It is a list. 09:13.940 --> 09:15.080 It is adopted. 09:15.290 --> 09:17.200 That element cannot be replaced. 09:17.360 --> 09:24.440 So once you have created a couple, the element of that that cannot be replaced, no new element can 09:24.440 --> 09:26.070 be added element. 09:26.090 --> 09:27.500 Would we be OK? 09:27.710 --> 09:33.110 Now, one more thing to understand here is this is a very important property of the. 09:34.500 --> 09:42.960 Which is, although I cannot replace the elements of this, I cannot modify this one to any other value, 09:42.970 --> 09:51.810 to any other value, but what I can do is because one is immutable in nature, I cannot modify the value 09:51.810 --> 09:54.060 of what I cannot modify the value of. 09:54.330 --> 09:56.220 I cannot modify the value of string. 09:56.220 --> 10:01.320 I cannot modify the value of it because these are immutable items. 10:01.650 --> 10:12.090 That list is in itself usable image, which means that I can modify a simple list. 10:12.540 --> 10:16.620 So let's see if I create a list, say. 10:17.760 --> 10:26.390 Any X, Y, Z list, which has some value, one, two, three, this value of this list can be modified. 10:26.610 --> 10:34.770 But if I had a couple that I modified so I can either create like another string, although I can create 10:34.770 --> 10:39.450 a new string, I can create a new number, but I cannot create a new couple. 10:40.020 --> 10:42.660 I cannot completely change that up a little. 10:43.020 --> 10:44.910 So what we do here is. 10:47.020 --> 10:55.970 I can modify this list, this list, so let us try it on the lady, so in the one which is next door. 10:56.260 --> 11:00.610 Let me try to get the value of the second index. 11:01.030 --> 11:02.560 So this value is three. 11:03.790 --> 11:06.950 Now, let's see if we can actually change this volume. 11:07.620 --> 11:12.220 OK, so let me bring it to you one. 11:13.120 --> 11:15.670 So this is my original D1. 11:17.570 --> 11:19.340 And out of this one. 11:20.680 --> 11:26.190 What I want to do is I can change, I want to change this value tree or let's say I want to change this 11:26.200 --> 11:26.560 value. 11:26.560 --> 11:27.510 Hi to hello. 11:28.540 --> 11:29.860 So that would be. 11:31.350 --> 11:31.800 Three. 11:33.150 --> 11:44.820 And I want this value to begin with, hello, and let me die of this and let me be one again so you 11:44.820 --> 11:55.140 can see that although I cannot change the values of the couple itself, but if the element of the couple 11:55.500 --> 12:06.210 is mutable in nature, which is I believe it is a list or it is a dictionary or it is a sect, I can 12:06.210 --> 12:12.780 modify the value inside that list, dictionary or step. 12:14.360 --> 12:23.590 But if it is a string, a number or another couple, I cannot modify those values. 12:23.780 --> 12:30.140 So this is the only property which you need to remember about the carpet, which would be sufficient 12:30.140 --> 12:33.320 for you to be walking in future.