What are Sets ?
               A set in Python is a collection used to store unique items, meaning duplicate values are not allowed.
               Sets are written using curly braces { } .
Python 
numbers = {10, 20, 30, 20} print(numbers) #output {10, 20, 30}

Features of Sets :
              1. Stores Unique Elements . Duplicates Values are automatically removed. 
              2. Unordered . They do not follow index positions.
              3. Set Elements are Immutable . Only numbers , strings and tuples are allowed. 
              4. Mutable . 


Accessing Set Elements :
               Since sets are unordered , they do not support indexing or slicing. 
Python 
s = {10, 20, 30} print(s[0]) # Not allowed

Access using Loop :
               Use a simple for loop to access element. 
Python 
fruits = {"apple", "banana", "mango"} for item in fruits: print(item) #output apple mango banana #The order may Change

Convert to List (If indexing is required ) :
              
Python 
s = {"red", "blue", "green"} lst = list(s) print(lst[0])