Dragonfly supports multiple speech recognition engines as its backend. The engines sub-package implements the interface code for each supported engine.
The dragonfly.engines.engine_base.EngineBase class forms the base class for this specific speech recognition engine classes. It defines the stubs required and performs some of the logic necessary for Dragonfly to be able to interact with a speech recognition engine.
To be continued: compiler classes, natlink and wsr implementation classes.