simple_service_client.py

#! /usr/bin/env python

import rospy
from gazebo_msgs.srv import DeleteModel, DeleteModelRequest # Import the service message used by the service /gazebo/delete_model
import sys 

rospy.init_node('service_client') # Initialise a ROS node with the name service_client
rospy.wait_for_service('/gazebo/delete_model') # Wait for the service client /gazebo/delete_model to be running
delete_model_service = rospy.ServiceProxy('/gazebo/delete_model', DeleteModel) # Create the connection to the service
kk = DeleteModelRequest() # Create an object of type DeleteModelRequest
kk.model_name = "bowl_2" # Fill the variable model_name of this object with the desired value
result = delete_model_service(kk) # Send through the connection the name of the object to be deleted by the service
print result # Print the result given by the service called