Top 10 Python Interview Questions with Solutions ✅

1️⃣ What is the difference between a list and a tuple?
⦁ List: mutable, defined with []
⦁ Tuple: immutable, defined with ()

lst = [1, 2, 3]
tpl = (1, 2, 3)

2️⃣ How to reverse a string in Python?

s = "Hello"
rev = s[::-1]  # 'olleH'

3️⃣ Write a function to find factorial using recursion.

def factorial(n):
    return 1 if n == 0 else n * factorial(n-1)

4️⃣ How do you handle exceptions?
⦁ Use try and except blocks.

try:
    x = 1 / 0
except ZeroDivisionError:
    print("Cannot divide by zero")

5️⃣ Difference between == and is?
⦁ == compares values
⦁ is compares identities (memory locations)

6️⃣ How to check if a number is prime?

def is_prime(n):
    if n < 2:
        return False
    for i in range(2,int(n**0.5)+1):
        if n % i == 0:
            return False
    return True

7️⃣ What are list comprehensions? Give example.
⦁ Compact way to create lists

squares = [x*x for x in range(5)]

8️⃣ How to merge two dictionaries?
⦁ Python 3.9+

d1 = {'a':1}
d2 = {'b':2}
merged = d1 | d2

9️⃣ Explain *args and **kwargs.
⦁ *args: variable number of positional arguments
⦁ **kwargs: variable number of keyword arguments

10️⃣ How do you read a file in Python?

with open('file.txt', 'r') as f:
    data = f.read()

Python Interview Resources: https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L

Tap ❤️ for more