Also, you should probably re-post this question on answers.ros.org instead of this list. Its a much nicer forum for answering these kinds of questions as it supports better search and voting than the mailing list. When you re-post, it'd also be helpful to see the error message you're receiving.

On Thu, Jun 16, 2011 at 2:31 PM, Chris Bersch <chris.bersch@gmail.com> wrote:

Hi all,

I ran into a problem when I ran python scripts where an actionlib
action client is intantiated right after the node a the
wait_for_server() function does not seem to work properly (it just
does not wait).

if __name__ == '__main__':
rospy.init_node('test_manipulation')
# rospy.sleep(1.0)

trajClient =
actionlib.SimpleActionClient("r_arm_controller/joint_trajectory_action",
pr2_controllers_msgs.msg.JointTrajectoryAction)
if not trajClient.wait_for_server(rospy.Duration(10.0)):
rospy.logerr("Could not connect to actionserver " )
exit(1)

will return immediately with an error, even though I would expect it
to wait 10s. If I uncomment rospy.sleep(1.0), everything works always
as expected. Is there a more elegant solution to this?

Chris
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