I don’t understand the question. Here’s some advice based on my assumptions…
If you’re asking how to get the sensors from another object, it’s very simple.
obj = logic.bge.getCurrentScene().objects['Object Name that has the sensor']
sensor = obj.sensors['name of sensor in the object']
I can’t test this right now, but that works for me.
If you’re asking about your errors…
For the parameters in cont.activate(actuator), you don’t put in a string. You put in the variable name for the actuator variable you created.
but, in your case,
You should also learn how to read errors (look in the blender console). When you’re inexperienced with programming it’s difficult to tell what you did wrong syntax/API wise without looking at the error message.
If you’re asking how to activate an actuator using two sensors at the same time, 3D solar system builder, answered that I think.