- If we want to represent a group of unique values as a single entity then we should go for set.
Properties
- Duplicates are not allowed.
- Insertion order is not preserved. But we can sort the elements.
- Indexing and slicing not allowed for the set.
- Heterogeneous elements are allowed.
Remark
- Set objects are mutable i.e. once we creates set object we can perform any changes in that object based on our requirement.
- We can represent set elements within curly braces and with comma separation.
- We can apply mathematical operations like union, intersection, difference … etc. on set objects.
Creation of set object
There are two methods to create set.
s={element, …}
Python
s={10,20,30,40}
print(s)
print(type(s)) Output
PowerShell
{40, 10, 20, 30}
<class 'set'>s=set(any sequence)
Python
l = [10,20,30,40,10,20,10]
s=set(l)
print(s)Output
PowerShell
{40, 10, 20, 30}Example
Python
s=set(range(5))
print(s)Output
PowerShell
{0, 1, 2, 3, 4}Note
- For creating empty set compulsory we should use set() function.
Example
Python
s={}
print(s)
print(type(s))Output
PowerShell
{}
<class 'dict'>Example
Python
s=set()
print(s)
print(type(s))Output
PowerShell
set()
<class 'set'>Ungraded Questions
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