Sets in Python , Set Operations , Methods and Comprehensions - Python Programming part 12

Published: 27 April 2020
on channel: Learning With Faraz

129

In this video the following topics are explained

1. Set creation
unordered collection of data , we cannot use slice operator to access the elements.
1. set() - This set is an inbuilt function that can be used to create a Set , it can take any iterable Like

A LIST
A TUPLE
A RANGE

etc
The example of this is shown in the video

2.literals - This is the most basic and easiest Method to create a set in Python I will provide the Example here itself

consider

numbers = {1, 2, 3, 4}
This creates your sets and Remember that sets do not allow any kind of duplicates in to it.

3. set comprehensions - As i have explained in my List comprehension Video , This set comprehensions are same as well except they contain Curly braces over them
The syntax for the set comprehension is

{var_name for var_name in range(s,e) if condtion(optional)}
The example for this is explained in the video in it's best manner
is expression with a loop and an optional condition
var for var in range(start,end) if....
2. Operations on Sets
1. Union ---- | -- Joins two sets except no duplicates
2. Difference ---- - Removes the common element and take the LEFT SIDE SET ELEMENTS AS THE RESULT
3. Intersection --- & -- Only considers the common values from both the sets
4. Symmetric Difference ---- ^ -- it removes the common elements and Returns the answer of Both the sets , best explanation is given in the video itself
3. Set methods
1.Pop - It removes a random element from the set
2.Remove(x)-- Removes x from the set
3.copy() -- copies the set
4.s.add(x)-- adds an element x to set s
5.Difference --- It is as Same as A-B
6.Union-- it is as Same as AuB
7. Intersection --- it is as Same AnB
8.A.Symmetric Difference(B) -- it is as Same as A^B
9.A.issubset(B) -- it check if the A is a subset of B , if so returns True otherwise returns False
10. A.issuperset(B) --it check if the A is a superset of B , if so returns True otherwise returns False
11.A.isdisjoint(B) --it check if the A is a disjoint of B , if so returns True otherwise returns False

Sets in Python , Set Operations , Methods and Comprehensions - Python Programming part 12

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