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Hajipur, Bihar, 844101
Python
Introduction to Python
Python Basics
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Python Syntax
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Python Comments
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Python Variables
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Python Data Types
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Python Casting
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Python I/O
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Python Operators
Cotrol Structures
Data Structures
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Python Strings
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Python Lists
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Python Tuples
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Python Dictionaries
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Python Sets
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Python Arrays
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Python Bytes and Bytearray
Date and Time
Functions and Module
File Handling
Python OOP
Advanced Concepts
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Python Scope
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Python Modules
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Python JSON
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Python RegEx
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Python PIP
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Python Try...Except
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Python String Formatting
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Python User Input
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Python VirtualEnv
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Python Math
Python DSA
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Python DSA
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Lists and Arrays
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Python Stacks
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Python Queues
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Linked Lists
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Python Hash Tables
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Python Trees
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Python Binary Trees
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Binary Search Trees
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Python AVL Trees
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Python Graphs
Searching Algorithms
Sorting Algorithms
Python Sets
A set is a collection which is unordered, unindexed, and does not allow duplicate values.
Sets are written with curly brackets {}.
🔹 Create a Set
fruits = {"apple", "banana", "cherry"}
print(fruits)
🔹 No Duplicates
Sets automatically remove duplicates.
fruits = {"apple", "banana", "apple"}
print(fruits) # {'apple', 'banana'}
🔹 Check if Item Exists
if "banana" in fruits:
print("Yes")
🔹 Add Items
fruits.add("orange")
🔹 Add Multiple Items
fruits.update(["grape", "melon"])
🔹 Get Length
print(len(fruits))
🔹 Remove Items
fruits.remove("banana") # Raises error if not found
fruits.discard("apple") # No error if not found
🔹 Loop Through a Set
for x in fruits:
print(x)
🔹 Join Sets
a = {"a", "b"}
b = {1, 2}
c = a.union(b)
🔹 Set Operations
x = {1, 2, 3}
y = {3, 4, 5}
print(x.intersection(y)) # {3}
print(x.difference(y)) # {1, 2}
print(x.symmetric_difference(y)) # {1, 2, 4, 5}
🧪 Try It Yourself
Practice adding, removing, checking membership, and performing operations like union and intersection.
Practice Questions
Q1. Write a Python program to create a set of 3 programming languages and print it.
Q2. Write a Python program to add "Java" to the set using add().
Q3. Write a Python program to add multiple items like "C" and "C++" to the set using update().
Q4. Write a Python program to remove "Python" from the set using remove() or discard().
Q5. Write a Python program to check if "JavaScript" exists in the set using the in keyword.
Q6. Write a Python program to create two sets and perform a union operation using union() or |.
Q7. Write a Python program to find common items between two sets using intersection().
Q8. Write a Python program to find the difference between two sets using difference().
Q9. Write a Python program to loop through a set and print each item using a for loop.
Q10. Write a Python program to get the number of items in a set using the len() function.
Python
Introduction to Python
Python Basics
-
Python Syntax
-
Python Comments
-
Python Variables
-
Python Data Types
-
Python Casting
-
Python I/O
-
Python Operators
Cotrol Structures
Data Structures
-
Python Strings
-
Python Lists
-
Python Tuples
-
Python Dictionaries
-
Python Sets
-
Python Arrays
-
Python Bytes and Bytearray
Date and Time
Functions and Module
File Handling
Python OOP
Advanced Concepts
-
Python Scope
-
Python Modules
-
Python JSON
-
Python RegEx
-
Python PIP
-
Python Try...Except
-
Python String Formatting
-
Python User Input
-
Python VirtualEnv
-
Python Math
Python DSA
-
Python DSA
-
Lists and Arrays
-
Python Stacks
-
Python Queues
-
Linked Lists
-
Python Hash Tables
-
Python Trees
-
Python Binary Trees
-
Binary Search Trees
-
Python AVL Trees
-
Python Graphs
Searching Algorithms
Sorting Algorithms
