Over the past few years, Python has gained popularity for its user-friendly nature and efficiency. If you've experienced other programming languages, you'll immediately appreciate its simple syntax and helpful characteristics.

The Python language is a legible and understandable one. This is what we mean by "user friendly" -- it reads almost like the English language. Even those who haven't programmed can comprehend what each line of code might do, and can take a guess of what is expected to happen upon execution.

Python isn't just limited to Windows (the operating system). It also works on operating systems like Linux, Solaris, macOS, etc. It's also an open-source language, so those who wish can fork it, add to it, or modify it to their heart's desire.

In terms of its applications, there are several. Because of its advanced features, it sees usage in fields like machine learning, AI, game development, website development, and many more. Additionally, it supports object-oriented programming (OOP), among other programming paradigms.

This tutorial aims to review the main concepts of Python that you need to ace your interview. So, without further ado-- let's get started with the interview questions.