wait_for_server: is it necessary to require node to be initialised?

[liborw]

When I try to call wait_for_server from script not node or from python interpreter the following error is raised:

ROSInitException: time is not initialized. Have you called init_node()?

The problem is that the wait_for_service uses rospy.get_rostime(). Is it necessary, The wait_for_service uses time and it works perfectly fine?

[dirk-thomas]

In order to utilize the communication infrastructure (which wait_for_server needs) the ROS node must have been initialized. Please consider asking question on http://answers.ros.org in the future.