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What is the difference between a list and a tuple? What are decorators and how do they work? Why are mutable default arguments risky in Python? What is a generator and how does it differ from a list? What problem do context managers solve? What is the difference between an iterable and an iterator? What is the difference between shallow copy and deep copy? What is the difference between @classmethod and @staticmethod? What are dunder methods and how do they implement Python's data model? What are Python dataclasses and how do they compare to Pydantic models? What do functools.lru_cache, partial, and wraps each do? What are Python best practices for error handling and exception chaining? What is the GIL and what are its practical consequences? When would you use threading vs asyncio vs multiprocessing? What are asyncio.gather, Semaphore, and asyncio.Queue used for? What is a race condition and how do you prevent it with locks?

Python Interview Questions

Core Python concepts for software, data, ML, and AI engineering interviews.

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