Apparently, classic control environments in Gym have a different key for render modes in env.metadata.
In fact:
>>> import gym
>>> env = gym.make('CartPole-v1')
>>> env.metadata
{'render_modes': ['human', 'rgb_array'], 'render_fps': 50}While in the garage wrapper it expects to find env.metadata['render.modes'], as it is for other environments.
|
self._render_modes = self._env.metadata['render.modes'] |
This results in a KeyError, unsurprisingly:
$ python examples/tf/trpo_cartpole.py
Traceback (most recent call last):
File "examples/tf/trpo_cartpole.py", line 57, in <module>
trpo_cartpole()
File "/home/***/.local/lib/python3.8/site-packages/garage/experiment/experiment.py", line 369, in __call__
result = self.function(ctxt, **kwargs)
File "examples/tf/trpo_cartpole.py", line 33, in trpo_cartpole
env = GymEnv('CartPole-v1')
File "/home/***/.local/lib/python3.8/site-packages/garage/envs/gym_env.py", line 147, in __init__
self._render_modes = self._env.metadata['render.modes']
KeyError: 'render.modes'Is it a problem of my version mix? I run with:
garage==2021.3.0gym==0.23.1
Thank you all for the great work!
Apparently, classic control environments in Gym have a different key for render modes in
env.metadata.In fact:
While in the garage wrapper it expects to find
env.metadata['render.modes'], as it is for other environments.garage/src/garage/envs/gym_env.py
Line 147 in c56513f
This results in a
KeyError, unsurprisingly:Is it a problem of my version mix? I run with:
garage==2021.3.0gym==0.23.1Thank you all for the great work!