Python Interview Questions and Answers (2026 Edition)

1About This Guide

Python interviews tend to revisit the same core ground. This guide walks through the most common

questions with clear answers — and, just as importantly, how to prepare so you can handle follow-ups.

2How to Use This

Don't memorise answers word for word — interviewers probe deeper. Understand the why behind each

answer so you can explain it in your own words and handle "what if?" follow-ups.

3Fundamentals

Numbers (int, float), strings, booleans, and collections like lists, tuples, dictionaries, and sets.

A list is mutable (changeable); a tuple is immutable (fixed once created). Use tuples for data that

4Data Structures

When you need to look things up by a key — like a name to a phone number. Lookups are fast and the

Storing unique items and doing fast membership checks or removing duplicates from a list.

5Functions and Scope

*args collects extra positional arguments into a tuple; **kwargs collects extra named arguments into a

Where a variable is accessible. Variables defined inside a function are local to it; those outside are

6OOP Questions

A class is a blueprint; an object is a specific thing built from it. One class can create many objects.

It refers to the specific object a method is acting on, letting the method read and change that object's own

7Tricky Gotchas

How to prepare for Python interviews: understand, practice, build, mock

== checks if two values are equal; is checks if they're the exact same object in memory. They usually

• Think out loud — interviewers want to see your reasoning.
• Clarify first — ask about edge cases before coding.
• Start simple — get a working solution, then improve it.
• Test your code — walk through an example at the end.
• Understand concepts deeply, not just answers.