The Observer pattern is mainly used to implement a distributed event handling system. The primary objective of this pattern is to provide a way to handle run-time one-to-many relationships between objects in a loosely coupled arrangement.
Oftentimes, you need to have objects that communicate with each other via events. This is a very useful setup, for example, in a GUI — where these events represent things like mouse clicks, key strokes, or button presses. That’s not what I developed these classes for, since I was more interested in simulating things and the event system seemed like the most natural fit, but the recipe is still relevant to other event handling needs. Continue reading “Event-based Programming for Python”
Sometimes, you come across two programming toolkits that would go great together. However, in the case of Twisted Matrix and Stackless python, there’s some legwork required to get these two great systems to work together.