bpydoc.structs.keys() - ['Actuator', 'ActuatorSensor', 'AlwaysSensor', 'AndController'.... etc
now reads...
bpydoc.structs.keys() - ['Actuator', 'Actuator Sensor', 'Always Sensor', 'And Controller'...
This is more correct since an identifier is supposted to be unique when a name might not be.