Lecture 46: Set Data Types in Python

Nafees AI Lab

In Python, a set is a built-in data type used to store an unordered collection of unique elements. Sets are mutable, meaning elements can be added or removed after the set is created. Python also offers frozenset, an immutable version of a set.

Transcript

00:00Welcome back and good morning.

00:30Welcome back and good morning.

01:00Congratulations.

01:01आपने पहला जो टेस्ट से जो सेट है वो डिफाइन कर लिया.

01:05अब पहली डेफिनेशन यह थी कि यह अन ओर्डर होता है.

01:08इसका मतलब यह है कि अगर मैं इसको कहूं कि यार मुझे जिरोत इंडेक्स के उपर बताओ कौन सा एलिमेंट फड़ा हुआ है.

01:14पढ़ा हुआ है तो यह मुझे एरर देगा कहेगा यह और्डर नहीं है.

01:18आप ऐसे एकसेस नहीं कर सकते है अलिमेंट को.

01:21दूसरी चीज इसकी मैंने यह कही थी कि यह यूनिक आपजेक्ट को ओल्ड करता है.

01:25मतलब यह है कि अगर इसके अंदर मैं एक और फाइव ऐलिमेंट डाल दूँ और इसको प्रिंट कराऊं तो लेट सी अगर हमार पास क्या आता है.

01:32तो क्योंके दो दफाफा फाइव आया यूनिक नहीं रहा तो उसने का नहीं मैं दूसरे डिसकार्ड करने लगा हूं मैं सिर्फ एक फाइव को ओल्ड करूंगा.

01:40This way you will see that you will only have one, two, three, four and five. Nothing else.

01:52This is unique objects.

01:54Okay.

01:56Let's talk about built-in methods.

02:01First of all, add method.

02:03For example, if I test set, underscore set, dot add method call,

02:08and I will say that I will add 100.

02:11If I print it, I will add test set.

02:17I will cut and run.

02:21Now we will see that our previous set was 5,

02:24and this value return.

02:27This method itself is a new method return.

02:33This method will add a new copy value.

02:38For example,

02:41new, underscore set, is equal to test, test, underscore set, dot copy.

02:50So, dot copy basically,

02:52is a method which we call the test set,

02:54which we call the new set.

02:56Okay.

02:57Now, in the new set,

02:58we can call the simple dot add method.

03:02However, again,

03:04because the value value is not returned,

03:07the original value is in change.

03:09So, we will show the value value to the original value.

03:13For example,

03:15I will disengage the copy and test set,

03:18because the change was in change.

03:19So, now I will add the test set.

03:21I will print the test set.

03:22I will print it.

03:23I will print it.

03:24I will print it.

03:26And run it.

03:27You will see that 100 value will be returned.

03:30I will remove it.

03:32Okay.

03:34Because 100 already exists,

03:36it will be added.

03:38Let's see if I can add 5.

03:40Run it.

03:41The 5 cannot be added.

03:42As you can see.

03:43Okay.

03:44Okay.

03:45Okay.

03:46Okay.

03:47Now,

03:48let's see.

03:49Let's see.

03:50Let's see.

03:51Set theory.

03:52Set theory.

03:53For example,

03:54if you have a set A,

03:56and this set B,

03:57what can you do?

03:59What can you do?

04:00Union can do something like that.

04:02Something like that.

04:03Okay.

04:04And two sets can do intersection.

04:06Okay.

04:07And two sets can do difference.

04:10Let's see.

04:11Let's see.

04:12Let's see.

04:13Let's see.

04:14One, two, three.

04:15Just for the sake of simplicity.

04:17So,

04:18we have a test set.

04:19Let's see.

04:20Union.

04:21You can see.

04:22Union.

04:23You can see.

04:24This is a test set.

04:25And one.

04:26We have a test set.

04:27And two.

04:28Use.

04:29Let's see.

04:30And one.

04:31Two.

04:32Three.

04:33Just for the sake of simplicity.

04:35So,

04:36two.

04:37We have a test set.

04:38First,

04:39we can see.

04:40Test.

04:41Underscore.

04:42Set.

04:431.

04:44Union.

04:45Union.

04:46Union.

04:47With test set.

04:482.

04:49Union.

04:50There is a set set.

04:51But,

04:52the common element is redundant.

04:53It is not redundant.

04:54It is not repeated.

04:55For example,

04:56I say,

04:57No.

04:58Just for the sake of simplicity.

05:00Just for the sake of simplicity.

05:01So,

05:02we have a test set.

05:03We have a test set.

05:04I say,

05:05Nine.

05:06Nine.

05:07Nine.

05:08Nine.

05:09Nine.

05:10Nine.

05:11Nine.

05:12Nine.

05:13Nine.

05:14Nine.

05:15Nine.

05:16Nine.

05:17Nine.

05:18Nine.

05:19Nine.

05:20Nine.

05:21Nine.

05:22Nine.

05:23Nine.

05:24Nine.

05:25Nine.

05:26Nine.

05:27Nine.

05:28Nine.

05:29Nine.

05:30Nine.

05:31Nine.

05:32Nine.

05:33Nine.

05:34you see the same result union

05:41this is intersection

05:44union is just join

05:48intersection will return

05:51which are common

05:53intersection

05:55test one test two

05:57as you see

06:00common

06:02nine

06:04let's say

06:05seven

06:06seven

06:07common

06:08now

06:09you will be

06:10common

06:11nine

06:12and seven

06:13basically

06:14if I go back

06:16diagram

06:17this intersection

06:20this region

06:22return

06:23this set

06:24a

06:25this

06:26common values

06:27return

06:28however

06:29union

06:30two set

06:32union

06:33then

06:35this area

06:36return

06:37this

06:38area

06:39return

06:40intersection

06:41uniquely

06:42return

06:43as a single region

06:45return

06:46you understand

06:47intersection

06:48is

06:49this

06:50line

06:51uniquely

06:52set

06:53return

06:54this

06:55is

06:56difference

06:57difference

06:58basically

06:59you can see

07:01intersection

07:02you can see

07:03one

07:04two

07:05three

07:06and

07:07eight

07:08you can see

07:09you can see

07:10one

07:11two

07:12three

07:13one

07:14two

07:15three

07:16and

07:17eight

07:18so

07:19you can see

07:20one

07:21two

07:22three

07:23eight

07:24basically

07:25set

07:26one

07:27two

07:28eight

07:29basically

07:30set

07:31one

07:32exist

07:33set

07:34one

07:35set

07:36two

07:37order

07:38that is

07:39very important

07:40for example

07:41if you

07:42intersection

07:43with

07:44set

07:45two

07:46and set

07:47one

07:48result

07:49will be

07:50different

07:51so

07:52you can see

07:53union

07:54difference

07:55because

07:56if

07:57one

07:58result

07:59will be

08:00different

08:01as you

08:02see

08:03one

08:04two

08:05three

08:06okay

08:07so

08:08congratulations

08:09guys

08:10you have

08:11done

08:12the data

08:13structure

08:14completely

08:15give

08:16yourself

08:17a big

08:18tap

08:19okay

08:20close

08:21and then

08:22we will

08:23start

Category

Transcript

Recommended