Streamlining Code with Context Managers and the `with` Statement(Python Core in Action 26)

Master Python's `with` statement and context managers to simplify code, prevent resource leaks, and improve efficiency with class-based and generator-based methods.

Welcome to the "Python Core in Action" Series

Table of Contents

You’re probably familiar with Python’s `with` statement, as it often appears in code related to file I/O. However, many people use it without fully understanding the "secrets" behind it.

So, what exactly is the `with` statement? What are context managers, and how do they relate to each other? Let’s explore these concepts.