Cannot import name 'monitor' for trpo_gym

[ashwinreddy]

I successfully installed rllab, and the trpo_cartpole.py example worked fine, but I'm getting an error with trpo_gym.py:

Traceback (most recent call last):
  File "trpo_gym.py", line 6, in <module>
    from rllab.envs.gym_env import GymEnv
  File "/home/ashwin/Research/rllab/rllab/envs/gym_env.py", line 4, in <module>
    from gym.monitoring import monitor
ImportError: cannot import name 'monitor'

I was looking at the latest Gym source code and gym.monitoring is definitely there but I can't find any monitor method or class.

[dementrock]

Sorry for the late reply! There has been some updates made to the gym repo. Should be fixed in 142b68d.

[ghost]

Oh dear :( , seems like it might be broken again?

Traceback (most recent call last):
  File "./examples/trpo_gym.py", line 3, in <module>
    from rllab.envs.gym_env import GymEnv
  File "/home/ajay/PythonProjects/rllab/rllab/envs/gym_env.py", line 5, in <module>
    from gym.monitoring import monitor_manager
ImportError: cannot import name 'monitor_manager' 

[dementrock]

Fixed!

[ghost]

Fan Q :)

By the way, have you seen this

LEARNING TO REINFORCEMENT LEARN

Be really cool if you released your RL^2 code?

[dementrock]

Hi @ajaytalati, yes we are working on the code release :) It has been delayed mostly because the first-order modifications to TRPO is waiting to be released separately. The learning to reinforcement learn paper has very similar ideas (except the learning algorithm used), so if you'd like to work on any follow-up ideas, your linked repo could be a good starting point.

[sergiovalmac]

Hi,
I am getting this same error with trpo_gym.py:
Traceback (most recent call last): File "/home/love/rl/rllab/examples/trpo_gym.py", line 6, in <module> from rllab.envs.gym_env import GymEnv File "/home/love/rl/rllab/rllab/envs/gym_env.py", line 4, in <module> from gym.monitoring import monitor ImportError: cannot import name 'monitor'
Any quick fix?
Thanks!

[dementrock]

@serteckian Make sure you are using the latest rllab code?

[chelseas]

This fixed things for me:
from gym.wrappers.monitor import Monitor