rospy/Troubleshooting - ROS Wiki
wiki.ros.org/rospy/TroubleshootingError: No module named... Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named foo; The ROS Python client libraries do a lot of the work for you to set your PYTHONPATH, but there are a couple of rules you need to follow to have this magic work correctly: Does your file include the correct call to: