import _Twist
the code on the book <ros by="" example="">and the tutorials are something like this:from geometry_msgs.msg import Twist
,but when I type from geometry_msgs.msg import T
,the sublime auto-completes it to this:from geometry_msgs.msg import _Twist
.An underscore appears.Is it OK?And I find there is only _Twist.py
in /opt/ros/hydro/lib/python2.7/dist-packages/geometry_msgs/msg
Just
Twist
should be fine.