Python Interview Questions

Want to get a job with Python? Here are some great interview questions you may run into

Updated May 3, 2023

What is Python?

Answer: Python is a high-level, interpreted programming language that is known for its simplicity and readability.

What are the benefits of using Python?

Answer: Python offers a number of benefits, including ease of use, wide availability of libraries and modules, strong community support, and cross-platform compatibility.

What is PEP 8?

Answer: PEP 8 is a coding style guide for Python that provides recommendations on how to write clean, readable code.

What is a virtual environment in Python?

Answer: A virtual environment is a tool that allows you to create an isolated environment for Python projects, with its own Python interpreter and dependencies.

What is a decorator in Python?

Answer: A decorator is a special type of function that can be used to modify the behavior of other functions.

What is a lambda function in Python?

Answer: A lambda function is a small, anonymous function that can be defined in a single line of code.

What is a generator in Python?

Answer: A generator is a type of iterator that generates values on-the-fly rather than storing them in memory.

What is the difference between a list and a tuple in Python?

Answer: Lists are mutable, meaning they can be changed, whereas tuples are immutable and cannot be changed once they are created.

What is the difference between “is” and “==” in Python?

Answer: “is” checks for object identity, while “==” checks for object equality.

What is a docstring in Python?

Answer: A docstring is a string literal that is used to document a function, method, or class in Python.

What is a try-except block in Python?

Answer: A try-except block is used to handle exceptions in Python, allowing you to gracefully handle errors and prevent your program from crashing.

What is a module in Python?

Answer: A module is a file containing Python definitions and statements that can be used in other Python code.

What is a package in Python?

Answer: A package is a collection of related modules that are organized together in a directory hierarchy.

What is the difference between “global” and “local” variables in Python?

Answer: Global variables are defined outside of functions and can be accessed by any part of the program, while local variables are defined within functions and can only be accessed within that function.

What is a list comprehension in Python?

Answer: A list comprehension is a compact way to create a new list by performing some operation on each element of an existing list.

What is the difference between a shallow copy and a deep copy in Python?

Answer: A shallow copy creates a new object that references the original object, while a deep copy creates a new object that is a copy of the original object, with its own separate memory.

What is the difference between “append” and “extend” in Python?

Answer: “append” adds a single item to the end of a list, while “extend” adds all the items from another list to the end of a list.

What is the difference between a function and a method in Python?

Answer: A function is a standalone block of code that can be called from anywhere in the program, while a method is a function that is associated with an object, and can only be called on that object.

What is the difference between a class and an object in Python?

Answer: A class is a blueprint for creating objects, while an object is an instance of a class.

What is the difference between a set and a frozenset in Python?

Answer: A set is a mutable collection of unique items

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