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Not sure whether anything has changed in rospy in the meantime, but I believe the problem is that rospy.Service(..) does not support that additional args argument described in the Q&A you link. That's for rospy.Subscriber(..) only.
See #q247540 for a potential work-around, using a lambda.
Another option would be to create a class, and make callback(..) a method on that class. It could then refer to any member variables of that class.
| | 2 | No.2 Revision |
Not sure whether anything has changed in rospy in the meantime, but I believe the problem is that rospy.Service(..) does not support that additional args argument described in the Q&A you link. That's for rospy.Subscriber(..) only.
See #q247540 for a potential work-around, using a lambda.
Another option would be to create a class, and make callback(..) a method on that class. It could then refer to any member variables of that class.
The reason you get that error ("") is because rospy.Service(..) expects a buff_size argument (an integer) where you are passing your AiMachine instance. See the documentation:
__init__(self, name, service_class, handler, buff_size=65536, error_handler=None)
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