In this tutorial, you'll learn how to use Python's mmap module to improve your code's performance when you're working with files. You'll get a quick overview of the different types of memory before diving into how and why memory mapping with mmap can make…

If you have a good test suite, you may be able use pytest fixtures to identify memory and other resource leaks.

If you want to save memory when reading from a BytesIO, getvalue() is surprisingly a good choice.

A cheat sheet of real-world timing and memory numbers to guide performance-sensitive decisions.