when i use rostopic pub have this problem YAMLLoadWarning:
when i use rostopic pub have this problem YAMLLoadWarning:
$ rostopic pub /simple_model/right_supportwheel_controller/command std_msgs/Float64 "data: 0.5"
/opt/ros/melodic/lib/python2.7/dist-packages/rostopic/__init__.py:1782: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
pub_args.append(yaml.load(arg))