__slots__

When we think about object-oriented programming in Python, we often picture classes and their attributes as the backbone of our designs. But have you ever wondered how to optimize memory usage and improve performance when dealing with large numbers of instances?

That’s where __slots__ come into play. This powerful feature can drastically reduce memory overhead for class instances, but it also comes with its own set of rules and limitations.

Let’s dive deep into what __slots__ are, how they work, and when to use them.