Top 20 Python (Advanced) Interview Questions and Answers

Sabrina Carpenter 🐍
19 min readJun 8, 2023

Python has secured its place as one of the most popular and versatile programming languages, attracting professionals and enthusiasts alike. Its flexibility, powerful features, and readability make Python a great choice for various applications, from web development to data analysis and machine learning. With such widespread adoption, mastering

Python is essential for software engineers and developers looking to stay competitive in today’s job market.

In this comprehensive guide, we delve into the most challenging and thought-provoking Python interview questions, providing you with clear, concise, and informative answers to help you stand out from the crowd and ace your next interview.

How would you implement a memoization technique for a recursive function in Python? Can you provide both decorator and non-decorator approaches?

Answer

Memoization is a technique used to optimize recursive functions by storing the results of expensive function calls and returning the cached result when the same inputs occur again. This can be done using decorators and non-decorator approaches.

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