gym env backward compatibility due to gym 0.9.6 breaking changes

examples/pybullet/gym/pybullet_envs/examples/minitaur_gym_env_example.py

@@ -1,6 +1,12 @@
 r"""An example to run of the minitaur gym environment with sine gaits.
 """
 
+import os
+import inspect
+currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
+parentdir = os.path.dirname(os.path.dirname(currentdir))
+os.sys.path.insert(0,parentdir)
+
 import math
 import numpy as np
 from pybullet_envs.bullet import minitaur_gym_env

examples/pybullet/gym/pybullet_envs/examples/testBike.py

@@ -1,3 +1,9 @@
+import os
+import inspect
+currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
+parentdir = os.path.dirname(os.path.dirname(currentdir))
+os.sys.path.insert(0,parentdir)
+
 import pybullet as p
 import math
 import time