replace deprecated pkg_resources with stdlib version comparison

examples/pybullet/gym/pybullet_envs/bullet/cartpole_bullet.py

@@ -18,7 +18,7 @@
 import pybullet as p2
 import pybullet_data
 from pybullet_utils import bullet_client as bc
-from pkg_resources import parse_version
+
 
 logger = logging.getLogger(__name__)
 

examples/pybullet/gym/pybullet_envs/bullet/kukaCamGymEnv.py

@@ -13,7 +13,6 @@
 from . import kuka
 import random
 import pybullet_data
-from pkg_resources import parse_version
 
 maxSteps = 1000
 
@@ -252,7 +251,7 @@ def _reward(self):
     #print(reward)
     return reward
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/bullet/kukaGymEnv.py

@@ -13,7 +13,6 @@
 from . import kuka
 import random
 import pybullet_data
-from pkg_resources import parse_version
 
 largeValObservation = 100
 
@@ -286,7 +285,7 @@ def _reward(self):
     #print(reward)
     return reward
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/bullet/kuka_diverse_object_gym_env.py

@@ -10,7 +10,6 @@
 import pdb
 import distutils.dir_util
 import glob
-from pkg_resources import parse_version
 import gym
 
 
@@ -319,6 +318,6 @@ def _get_random_object(self, num_objects, test):
       selected_objects_filenames += [found_object_directories[object_index]]
     return selected_objects_filenames
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _reset = reset
     _step = step

examples/pybullet/gym/pybullet_envs/bullet/minitaur_duck_gym_env.py

@@ -10,7 +10,6 @@
 
 import math
 import time
-from pkg_resources import parse_version
 
 import gym
 from gym import spaces
@@ -383,7 +382,7 @@ def _noisy_observation(self):
           self.minitaur.GetObservationUpperBound())
     return observation
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/bullet/minitaur_gym_env.py

@@ -19,7 +19,6 @@
 import os
 import pybullet_data
 from . import minitaur_env_randomizer
-from pkg_resources import parse_version
 
 NUM_SUBSTEPS = 5
 NUM_MOTORS = 8
@@ -383,7 +382,7 @@ def _noisy_observation(self):
           self.minitaur.GetObservationUpperBound())
     return observation
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/bullet/racecarGymEnv.py

@@ -14,7 +14,6 @@
 import random
 from pybullet_utils import bullet_client as bc
 import pybullet_data
-from pkg_resources import parse_version
 
 RENDER_HEIGHT = 720
 RENDER_WIDTH = 960
@@ -176,7 +175,7 @@ def _reward(self):
       #print(reward)
     return reward
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/bullet/racecarZEDGymEnv.py

@@ -14,7 +14,6 @@
 from . import racecar
 import random
 import pybullet_data
-from pkg_resources import parse_version
 
 RENDER_HEIGHT = 720
 RENDER_WIDTH = 960
@@ -206,7 +205,7 @@ def _reward(self):
       #print(reward)
     return reward
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/deep_mimic/gym_env/deep_mimic_env.py

@@ -18,7 +18,7 @@
 import pybullet as p2
 import pybullet_data
 from pybullet_utils import bullet_client as bc
-from pkg_resources import parse_version
+
 from pybullet_envs.deep_mimic.env.pybullet_deep_mimic_env import PyBulletDeepMimicEnv, InitializationStrategy
 from pybullet_utils.arg_parser import ArgParser
 from pybullet_utils.logger import Logger

examples/pybullet/gym/pybullet_envs/env_bases.py

@@ -5,7 +5,7 @@
 
 from pybullet_utils import bullet_client
 
-from pkg_resources import parse_version
+
 
 try:
   if os.environ["PYBULLET_EGL"]:
@@ -152,7 +152,7 @@ def HUD(self, state, a, done):
   #
   #
   # 	return self.step(*args, **kwargs)
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/minitaur/envs/minitaur_gym_env.py

@@ -22,7 +22,6 @@
 from pybullet_envs.minitaur.envs import minitaur_logging_pb2
 from pybullet_envs.minitaur.envs import minitaur_rainbow_dash
 from pybullet_envs.minitaur.envs import motor
-from pkg_resources import parse_version
 
 NUM_MOTORS = 8
 MOTOR_ANGLE_OBSERVATION_INDEX = 0
@@ -548,7 +547,7 @@ def _get_observation_dimension(self):
     """
     return len(self._get_observation())
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed

examples/pybullet/gym/pybullet_envs/prediction/pybullet_sim_gym_env.py

@@ -21,7 +21,6 @@
 import os
 import pybullet_data
 
-from pkg_resources import parse_version
 
 
 class PyBulletSimGymEnv(gym.Env):
@@ -209,7 +208,7 @@ def _get_observation(self):
     self._observation = self._example_sim.GetObservation()
     return self._observation
 
-  if parse_version(gym.__version__) < parse_version('0.9.6'):
+  if tuple(int(x) for x in gym.__version__.split('.')) < (0, 9, 6):
     _render = render
     _reset = reset
     _seed = seed