100+ Python Interview Questions for Developers and Programmers

I have prepared a collection of amazing interview question with their answers. These Interview question are asked in companies like Google, Microsoft, Amazon. These question will cover all basic question and will give you idea about more interactive question.

Before attending any interview session you should have idea about what the type of questions may be asked, thus it will be helpful for you to be prepared. You can proudly say that Python is a hot choice for for development of large projects as well as it handles small projects in parallel.

Python Interview Questions & Answers 2021

Q1) Explain the difference between a list and a tuple?

List Tuple
Lists are surrounded by square brackets [ ] Tuples are surrounded by parenthesis ( )
List has mutable nature Tuple has immutable nature
Pythons allocates small memory blocks Python allocates memory to tuples in terms of larger blocks with a low overhead
List are used to store homogenous elements Tuples are used to store heterogeneous elements

Q2) How is Python interpreted?

Python language is an interpreted language. Python program runs directly from the source code. It converts the source code that is written by the programmer into an intermediate language, which is again translated into machine language that has to be executed.

Q3) How is memory managed in Python?

Python memory is managed by Python private heap space. All Python objects and data structures are located in a private heap. The programmer does not have an access to this private heap, and the interpreter takes care of this Python private heap.

Q4) What is Python?

Python is a high-level, interpreted, general-purpose programming language. Being a general-purpose language, it can be used to build almost any type of application with the right tools/libraries.

Q5) What is Scope in Python?

Every object in Python functions within a scope. A scope is a block of code where an object in Python remains relevant. Namespaces uniquely identify all the objects inside a program.

Q6) What are Dict and List comprehensions?

Python comprehensions, like decorators, are syntactic sugar constructs that help build altered and filtered lists, dictionaries or sets from a given list, dictionary or set. Using comprehensions, saves a lot of time and code that might be considerably more verbose (containing more lines of code). Let’s check out some examples, where comprehensions can be truly beneficial:

Q7) What type of language is python? Programming or scripting?

Python is capable of scripting, but in general sense, it is considered as a general-purpose programming language.

Q8) What is PYTHONPATH?

It is an environment variable which is used when a module is imported. Whenever a module is imported, PYTHONPATH is also looked up to check for the presence of the imported modules in various directories. The interpreter uses it to determine which module to load.

Q9) Is python case sensitive?

Yes. Python is a case sensitive language.

Q10) Is indentation required in python?

Indentation is necessary for Python. It specifies a block of code. All code within loops, classes, functions, etc is specified within an indented block. It is usually done using four space characters. If your code is not indented necessarily, it will not execute accurately and will throw errors as well.

A K Singh Rajpoot is enthusiastic programmer & founder of XNetKing. As well He love blogging and shares programming and tech tips to improve your tech knowledge and experience.

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