Python action client does not connect properly

edit

I had a problem with an action client not connecting to the server. I stuck as close to the tutorial) as possible. I tested that the server works by using rosrun actionlib axclient.py /robot_skills/pick as proposed here.

Still, the code below would get stuck on "Waiting for result".

#!/usr/bin/env python

import sys
import rospy
import actionlib

import geometry_msgs.msg
import robot_skills.msg

class ExampleClass(object):
  def __init__(self):
    self.pick_client = actionlib.SimpleActionClient('/robot_skills/pick', robot_skills.msg.pickAction)

  def do_pick_action(self, robot_name):
    goal = robot_skills.msg.pickGoal()
    rospy.loginfo("Sending empty pick action goal")
    rospy.loginfo(goal)

    self.pick_client.send_goal(goal)
    rospy.loginfo("Waiting for result")
    self.pick_client.wait_for_result()
    rospy.loginfo("Getting result")
    return self.pick_client.get_result()

if __name__ == '__main__':
  rospy.init_node('assembly_example')
  tutorial = ExampleClass()
  tutorial.do_pick_action("a_bot")