Mujoco-py: OpenAI gym Humanoid: Error with load_model_from_path()

[Suman7495]

When I try running OpenAI's sample code for the humanoid robot:

import gym
env = gym.make('Humanoid-v2')
env.reset()
env.render()

I get the error:

Traceback (most recent call last):
  File "humanoid.py", line 2, in <module>
    env = gym.make('Humanoid-v2')
  File "/home/suman/gym/gym/envs/registration.py", line 163, in make
    return registry.make(id)
  File "/home/suman/gym/gym/envs/registration.py", line 119, in make
    env = spec.make()
  File "/home/suman/gym/gym/envs/registration.py", line 86, in make
    env = cls(**self._kwargs)
  File "/home/suman/gym/gym/envs/mujoco/humanoid.py", line 12, in __init__
    mujoco_env.MujocoEnv.__init__(self, 'humanoid.xml', 5)
  File "/home/suman/gym/gym/envs/mujoco/mujoco_env.py", line 27, in __init__
    self.model = mujoco_py.load_model_from_path(fullpath)
AttributeError: 'module' object has no attribute 'load_model_from_path'

I installed mujoco-py using the following:
sudo pip install mujoco-py==0.5.7

How to resolve this issue?

[tbrodbeck]

Why is this closed? Did you find the answer?
I am having the same issue using https://github.com/openai/multiagent-competition

[Suman7495]

I worked around this issue by installing OpenAI Gym and Mujoco by making a Conda environment.

conda create -n test python=3.5.2
sudo activate test
cd ~/.mujoco
git clone https://github.com/openai/mujoco-py
export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$HOME/.mujoco/mjpro150/bin"
pip install -e ./mujoco-py
cd ~
git clone https://github.com/openai/gym.git
cd gym
pip install -e .

The following lines need to be added in .bashrc located in the home folder.
LD\_LIBRARY\_PATH="\$LD\_LIBRARY\_PATH:\$HOME/.mujoco/mjpro150/bin pip install mujoco-py"

To use Mujoco-py and OpenAI Gym:
source activate test

To finish: source deactivate

[huiwenzhang]

Is it because the wrong version of mujoco-py?

[kirk86]

The problem here is not only the fact that mujoco-py is old or wrong version how about python=3.5.2 isn't that considered old these days? Why not support 3.6.x out of the box?

[tbrodbeck]

It actually did work for me with python 3.6, mujoco 0.5.7 with the mjpro131 package installed and gym 0.9.1

[itstartstosnow]

I am also faced with this problem! But I used python 3.6.2, mujoco_py 0.5.7 and installed mjpro131. I used a virtual environment in Anaconda on windows 10.

Update: I found that I was using gym 0.10.5. I changed that to 0.9.1 and it worked! But there's no Humanoid-v2 provided and you can use Humanoid-v1 instead.

[simonkm1]

where did get you gym 0.9.1 ? , i can see only 0.9.6 and 0.9.7 :(

thanks

[itstartstosnow]

@simonkm1 I think using pip install gym==0.9.1 works fine. ;-)

[lewisKit]

I have the same issue, but it works for me to upgrade both gym and mujoco_py to the newest version.

[superggb]

I have gym 0.9.1 mjpro131 mujoco_py 0.5.7 and python 3.6.8.
But still have the issue (I can use Humanoid-v1)
anybody knows why?