Introduction to Context Managers

Context managers in Python help you manage resources such as files, network connections, and database connections. They ensure resources are properly acquired and released, even if an error occurs.

In this lesson, you’ll learn how to use and create context managers using the with statement.

What Is a Context Manager?

A context manager is a construct that allows you to allocate and release resources efficiently. It uses the with statement to wrap resource management code.

# Using a context manager with a file
with open("example.txt", "r") as file:
    content = file.read()
    print(content)  # File is automatically closed after the block