Top 50 Python coding Interview Questions in 2024!
Today, I’m excited to share my personal experience diving into the world of Python coding interview questions.
As someone who’s been passionate about coding for years, I’ve always found interviews to be both thrilling and nerve-wracking.
But armed with determination and a bit of preparation, I set out to tackle the top 50 Python interview questions in 2024 head-on.
Python Basics:
- What is Python?
- What are the key features of Python?
- Explain the difference between mutable and immutable data types.
- What is PEP 8?
- Difference between lists and tuples?
Control Flow and Functions:
- Explain conditional statements (if, elif, else) and loops (for, while).
- How do you define and call functions in Python? (def keyword, arguments)
- How do you handle exceptions in Python?
Object-Oriented Programming:
- Explain the four pillars of OOP (Encapsulation, inheritance, polymorphism, abstraction).
- What are classes and objects in Python?
- How do you define a class and create objects in Python?
- What is the difference between methods and attributes?
Data Structures and Algorithms:
- How do you implement common data structures (lists, stacks, queues)?
- What is the time and space complexity of different algorithms? (e.g. searching, sorting)
- Explain Big O Notation.
- How do you handle recursion in Python?
Python Libraries and Frameworks:
- What are popular Python libraries and their uses?
- Have you used any web scraping tools?
- Experience with machine learning libraries (Scikit-learn, TensorFlow, PyTorch)?
- How do you handle file I/O operations in Python (open(), read(), write())?
Coding Challenges:
- Write Python code to reverse a string.
- Find the factorial of a number.
- Check if a string is a palindrome.
- Find the greatest common divisor (GCD) of two numbers.
- Write a function to sort a list of elements.
- Find the minimum number of coins required to make a certain amount with given denominations.
- Solve the knapsack problem.
- Implement a simple calculator for basic arithmetic operations.
- Write a function to convert a Roman numeral to an integer.
- Find all the permutations of a given string.
- Implement a function to perform a binary search.
- Find the missing number in a sorted list.
- Check if a linked list has a cycle.
- Clone a binary tree.
- Find the maximum depth of a binary tree.
- Write a function to validate parentheses ((), {}, []) in an expression.
- Implement a Breadth-First Search (BFS) algorithm on a graph.
- Check if a number is prime.
- Find the sum of the digits in a number.
- Flatten a nested list.
- Remove duplicates from a list.
- Count the occurrences of each element in a list.
- Find the longest common prefix of a list of strings.
- Validate an email address.
- Reverse words in a sentence.
But it wasn’t just about memorizing answers — it was about understanding the underlying concepts and applying them in real-world scenarios.
Of course, interview prepration is only complete with a healthy dose of problem-solving.
So whether you’re gearing up for your first Python interview or brushing up on your skills for the hundredth time, remember this: It’s not just about the answers you give, but the journey you take to get there.
Happy coding, my friends!
