#  Introduction   Python is eating the world . Since its introduction over 35 years ago, Python has successfully bullied its way into the hearts of programmers the world over. Python is a powerful, general-purpose programming language with a simple syntax, deep user community, and a vast array of supporting libraries in its ecosystem. This has helped make it one of the go-to languages of data science, machine learning and AI. Moreover, Python is easy to get started with (relatively speaking). Don't be fooled, however; you can still spend years improving your skills and mastering the core mechanisms of the language. That's why we're here today. In a previous article , we covered our first five must-know Python concepts: list comprehensions and generator expressions; decorators; context managers ( with statements); mastering *args and **kwargs ; and dunder methods (magic methods). Now, let's take a look at five more fundamental concepts that every Python developer should have in their toolkit.…