[Python]How to know pose of turtlebot

edit

Hello!

As you suggest in your last message, the best practice for doing that is to use the odom topic. For that, you can create a simple subscriber in Python that gets the data you need, which is, position and orientation respect to an starting point. The code for a simple subscriber could be like this:

#! /usr/bin/env python

import rospy
from nav_msgs.msg import Odometry

def callback(msg):
    print msg.pose.pose

rospy.init_node('check_odometry')
odom_sub = rospy.Subscriber('/odom', Odometry, callback)
rospy.spin()

This code basically subscribes to the odom topic, and prints the pose component of the message, which contains the position and orientation values. I've also created a video with a quick demonstration, which may be helpful: https://www.youtube.com/watch?v=kPsrO...