Python Sets Explained for Beginners: Complete Guide with Examples
Python Sets Explained for Beginners (Complete Guide with Examples)
Python programming me Set ek important data structure hai jo unique elements store karta hai.
Set ka main feature ye hai ki isme duplicate values allowed nahi hoti.
Example:
numbers = {1, 2, 3, 4, 5}
print(numbers)
Output
{1, 2, 3, 4, 5}
Agar duplicate values add karenge to Python automatically unhe remove kar deta hai.
Example:
numbers = {1, 2, 2, 3, 4}
print(numbers)
Output
{1, 2, 3, 4}
1. What is a Python Set?
Python Set ek unordered collection hai jisme:
✔ Duplicate values allowed nahi hoti
✔ Items random order me hote hain
✔ Curly brackets {} use hoti hain
Example:
fruits = {"apple", "banana", "mango"}
print(fruits)
2. Creating a Set
Python me set create karna bahut simple hai.
Example:
colors = {"red", "blue", "green"}
print(colors)
Empty set create karne ke liye:
my_set = set()
Note: {} empty dictionary banata hai, set nahi.
3. Adding Items in Set
Set me item add karne ke liye add() method use hota hai.
Example:
fruits = {"apple", "banana"}
fruits.add("mango")
print(fruits)
Output:
{'apple', 'banana', 'mango'}
4. Removing Items from Set
Set se item remove karne ke liye remove() method use hota hai.
Example:
fruits = {"apple", "banana", "mango"}
fruits.remove("banana")
print(fruits)
Output:
{'apple', 'mango'}
5. Loop Through a Set
Set ke items ko access karne ke liye loop use kar sakte hain.
Example:
fruits = {"apple", "banana", "mango"}
for fruit in fruits:
print(fruit)
Output:
apple
banana
mango
6. Python Set Operations
Python sets ka use mathematical operations ke liye bhi hota hai.
Union
Union ka matlab dono sets ka data combine karna.
Example:
A = {1, 2, 3}
B = {3, 4, 5}
print(A | B)
Output:
{1, 2, 3, 4, 5}
Intersection
Common elements find karne ke liye.
Example:
A = {1, 2, 3}
B = {2, 3, 4}
print(A & B)
Output:
{2, 3}
Difference
Ek set me jo element hai aur dusre me nahi.
Example:
A = {1, 2, 3}
B = {2, 3, 4}
print(A - B)
Output:
{1}
7. List vs Tuple vs Set Difference
| Feature | List | Tuple | Set |
|---|---|---|---|
| Symbol | [] | () | {} |
| Duplicate Allowed | Yes | Yes | No |
| Order | Ordered | Ordered | Unordered |
| Mutable | Yes | No | Yes |
Example:
List
numbers = [1,2,3]
Tuple
numbers = (1,2,3)
Set
numbers = {1,2,3}
8. Real Life Example of Sets
Set ka use duplicate values remove karne ke liye hota hai.
Example:
numbers = [1,2,2,3,4,4,5]
unique_numbers = set(numbers)
print(unique_numbers)
Output
{1,2,3,4,5}
Conclusion
Python Sets ek powerful data structure hai jo unique elements store karta hai aur mathematical operations perform karne me help karta hai.
Python programming me sets ka use:
• Duplicate data remove karne me
• Data comparison me
• Mathematical operations me
agar aap Python beginner hain, to sets ko samajhna bahut useful hai.
👉Read Previous Lesson:1. Python Loops Explained: for Loop and while Loop with Examples for Beginners
Comments