moving sr_hand ros fuerte with code

edit

I tried to move de hand with rostopic and this work very well

 rostopic pub /sh_ffj3_mixed_position_velocity_controller/command std_msgs/Float64 -- 10

And I tried to make this with code.

 
import roslib; roslib.load_manifest('rospy_tutorials')

import rospy
from std_msgs.msg import *

def talker():
    pub = rospy.Publisher('sh_ffj3_mixed_position_velocity_controller/command', Float64)
    rospy.init_node('ffj3Control')    
    value = 10
    rospy.loginfo(value)
    pub.publish(Float64(value))

if __name__ == '__main__':
    try:
        talker()
    except rospy.ROSInterruptException: pass

But this didn't work. The model in the gazebo gui does not move.

This the result of this execution:

/opt/ros/fuerte/share/rospy_tutorials$ rosrun beginner_tutorials talker.py[INFO] [WallTime: 1365084692.814065] [0.000000] 10

Anyone knows what is wrong?