add space to make conversion work

examples/pybullet/gym/pybullet_envs/robot_bases.py

@@ -1,4 +1,4 @@
-import pybullet
+import pybullet 
 import gym, gym.spaces, gym.utils
 import numpy as np
 import os, inspect

examples/pybullet/gym/pybullet_envs/robot_locomotors.py

@@ -1,6 +1,6 @@
 from robot_bases import XmlBasedRobot, MJCFBasedRobot, URDFBasedRobot
 import numpy as np
-import pybullet
+import pybullet 
 import os
 import pybullet_data
 from robot_bases import BodyPart