Originally posted on Medium.
For my first Medium article, we’re going to go into a quick and easy way to speed up your Python code (and pass those pesky HackerRank tests where you’re just a bit short on time!), as well as some of the technical implementation details for the curious.
__slots__ is an attribute you can add to a Python class when defining it. You define slots with the possible attributes that an instance of an object can possess. Here’s how you use __slots__: