openAi-gym NameError

Question

I am trying to use the famous 'Gym' module from OpenAI on WSL and executing code on python 3.5.2.
When I try to run an environment as explained here, using the code:

import gym env = gym.make('CartPole-v0') for i_episode in range(20):     observation = env.reset()     for t in range(100):         env.render()         print(observation)         action = env.action_space.sample()         observation, reward, done, info = env.step(action)         if done:             print("Episode finished after {} timesteps".format(t+1))             break 

this happens:

Traceback (most recent call last):   File "<stdin>", line 4, in <module>   File "/home/DrHofstadter/gym/gym/core.py", line 153, in render     return self._render(mode=mode, close=close)   File "/home/DrHofstadter/gym/gym/core.py", line 285, in _render     return self.env.render(mode, close)   File "/home/DrHofstadter/gym/gym/core.py", line 153, in render     return self._render(mode=mode, close=close)   File "/home/DrHofstadter/gym/gym/envs/classic_control/cartpole.py", line 114, in _render     from gym.envs.classic_control import rendering   File "/home/DrHofstadter/gym/gym/envs/classic_control/rendering.py", line 23, in <module>     from pyglet.gl import *   File "/home/DrHofstadter/.local/lib/python3.5/site-packages/pyglet/gl/__init__.py", line 224, in <module>     del base NameError: name 'base' is not defined 

The problem is similar to this question nothing is being rendered. (The gitterforum link given in question doesn't work anymore.)

Answer 1

This may not be a perfect answer to this question but this is my experience how I resolved this problem.

I was getting the same error when I running my programme from the spyder. but when I execute the same code from the terminal it didn't throw any error. but make your locale is correctly configured for the gym environment.