Sets in Python - Advanced Python 04 - Programming Tutorial

In this Python Advanced Tutorial, we will be learning about Sets in Python. A Set is a collection data type that is unordered and mutable, but unlike lists or tuples it does not allow duplicate elements. We will go over how you can use them and some advanced techniques that can be applied to sets.

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[harshabuddana]

I just saw this video and went to hackerrank and completed all the problems that are under the label of "sets". Thank you for the simple way of explanation.

[_jirkaa_]

You can also use "|" to update 2 sets


combination = setA | setB

[iamvijay]

I think you covered pretty much everything on the choosen topics...Nice tutorial i like it.. If possible please make some videos on Adavanced Dajngo and RestApi sessions.

[GabrielOliveira-mmdz]

oh my gosh, I learned a lot here, my notepad is full of information that I took from this class, thanks so much from Brazil

[traktorista]

Nice and professional videos. Thumb up! Keep it up

[ronyut]

Sets - test your comprehension:
- how to initialize a set? (1 way)
- how to convert a list to set?
- how to copy a set? (2 ways)
- what is the result of `set("hello")`: ('h', 'e', 'l', 'o') or ("helo")?
- will {} create an empty set?
- how do you initialize an empty set?
- how to add to set?
- what's the difference between remove and discard?
- what does pop() do?
- how to union two sets? (2 ways)
- explain intersection() vs intersection_update()
- what is an equivalent of s1.difference(s2)?
- explain difference vs symmetric_difference
- how to check if s1 contains all elements of s2?
- what does `s2.issuperset(s1)` do?
- write a single-line code equivalent to isdisjoint()
- how to initialize an immutable set?

[doniyorabduvokhidov]

Thank you so much for the detailed explanation of set methods.

[revolutionN]

Thank you so much! I use your videos as a reference when I need to figure out something!

[AhmadAsmndr]

Thank you very much, I am really enjoying your videos.

[KanwalJeetSinghHanspal]

1. Amazing Video
2. Do make video about Python framework
3. Which ide you use in MAC

[gunahawk]

this is gold mine for DSA, is it possible for you to upload user defined data structures too ? include Stack, Queue, Linked List, Tree, Graph and HashMap.

[priyanshu]

i have question in other languages if we have objects type item then we need to pass some sort of comparer then how does it work in python

[ronyut]

Hi, did anyone understand what's the difference between union() and update()?
Seems like they both bring eventually the same result...
Same goes for intersection() and intersection_update()...

***
Edit:
Okay, it's easy.
If the method's name does NOT contain the word `update`, then it won't update and just return another set and won't affect the current one (the set that the method has been applied on).
Otherwise (the method name contains the word `update`), the current set *itself* will update!

[CavanLeeSears]

11:18 They should have called something like 'tetris_merge()'.

[drnotebook]

Change the name for this video series. This is beginner stuff. Don't
lie to people by calling it advanced. You lose your credibility from
the start when you LIE to people right from the start.