Python- Sets
A set is the collection which is unordered and unindexed. In Python sets are always written with curly brackets.
Example
Create a Set:
thisset = {"apple", "orange", "cherry"}
print(thisset)
Output:
C:\Users\My Name>python demo_set.py
{'banana', 'orange', 'apple'}
Set Methods
Python has a set of built-in methods that you can use on sets.
|
Method |
Description |
|
add() |
Adds an element to the set |
|
clear() |
Removes all the elements from the set |
|
copy() |
Returns a copy of the set |
|
difference() |
Returns a set containing the difference between two or more sets |
|
difference_update() |
Removes the items in this set that are also included in another, specified set |
|
discard() |
Remove the specified item |
|
intersection() |
Returns a set, that is the intersection of two other sets |
|
intersection_update() |
Removes the items in this set that are not present in other, specified set(s) |
|
isdisjoint() |
Returns whether two sets have a intersection or not |
|
issubset() |
Returns whether another set contains this set or not |
|
issuperset() |
Returns whether this set contains another set or not |
|
pop() |
Removes an element from the set |
|
remove() |
Removes the specified element |
|
symmetric_difference() |
Returns a set with the symmetric differences of two sets |
|
symmetric_difference_update() |
inserts the symmetric differences from this set and another |
|
union() |
Return a set containing the union of sets |
|
update() |
Update the set with the union of this set and others |
