Clean Code in Python

Inverting the dependencies

The solution to these problems is to make EventStreamer work with an interface, rather than a concrete class. This way, implementing this interface is up to the low-level classes that contain the implementation details:

Now there is an interface that represents a generic data target where data is going to be sent to. Notice how the dependencies have now been inverted since EventStreamer does not depend on a concrete implementation of a particular data target, it does not have to change in line with changes on this one, and it is up to every particular data target; to implement the interface correctly and adapt to ...