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Python Interview Questions

200+ Python interview questions covering basics to advanced topics. Each question includes a short answer, detailed explanation, memory trick, keywords, and interviewer follow-up questions.

📊 200+ Questions ⏱️ ~40 hours of study 🏢 Asked at: Google, Amazon, Meta, TCS, Infosys
1

Basics (Q1-50)

Data types, operators, functions, comprehensions, memory management

Beginner 50 Q
2

OOP (Q51-100)

Classes, inheritance, polymorphism, decorators, descriptors, design patterns

Intermediate 50 Q
3

Advanced (Q101-150)

Async/await, metaclasses, threading, multiprocessing, memory optimization

Advanced 50 Q
4

DSA in Python (Q151-180)

Sorting, searching, graphs, dynamic programming, common interview patterns

Intermediate 30 Q
5

NumPy & Pandas (Q181-200)

Array operations, broadcasting, DataFrames, performance optimization

Intermediate 20 Q
6

Output-Based Questions

Tricky output questions — mutable defaults, closures, scope, floating point

Tricky 20 Q

💡 Study Tips for Python

  • • Start with Basics if you're a fresher — these come up in every screening round
  • • OOP and Decorators are the most commonly tested intermediate topics
  • • Output-based questions are favorites in online assessments (TCS, Infosys)
  • • For FAANG, focus on Advanced + DSA sections
  • • Practice explaining code aloud — interviewers care about communication