rosparam set /background_r 0，进行参数设置命令式报警

一、问题描述：

joes@joes:~/joesrobot$ rosparam set /background_r 0
/opt/ros/kinetic/lib/python2.7/dist-packages/rosparam/__init__.py:375: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
  set_param_raw(param, yaml.load(value), verbose=verbose)

二、解决：

1.打开__init__.py文件：

$ sudo gedit /opt/ros/kinetic/lib/python2.7/dist-packages/rosparam/__init__.py

2.修改以下内容：

将代码：
set_param_raw(param, yaml.load(value), verbose=verbose)
改为：  
set_param_raw(param, yaml.load(value, Loader=yaml.FullLoader), verbose=verbose)