python3运行ros方法 No module named 'rospkg'

我们安装的ros后,其一般的库文件均基于python2,但是当某个项目必须要用python3时,就会出现如下错误:

Traceback (most recent call last):
  File "/home/jetbot/arm_all/xArm-Python-SDK-master/example/wrapper/common/xarm_publish.py", line 16, in 
    import rospy
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/__init__.py", line 49, in 
    from .client import spin, myargv, init_node, \
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/rospy/client.py", line 52, in 
    import roslib
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslib/__init__.py", line 50, in 
    from roslib.launcher import load_manifest
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslib/launcher.py", line 42, in 
    import rospkg
ImportError: No module named 'rospkg'

即python3中无rospy,解决办法如下:

$ sudo apt-get install -y python3-pip
$ sudo pip3 install rospkg
$ sudo pip3 install netifaces
$ sudo pip3 install defusedxml

安装完成后,即可python3来运行ros节点了.