panda-gym v2 error; "TypeError: catching classes that do not inherit from BaseException is not allowed".

[ppangTae]

Describe the bug

The docs said that panda-gym v3 is not compatible with SB3, so I tried to use v2. So I installed it with "pip install panda-gym==2.0.4" and ran the code as shown in the docs and got the following error "TypeError: catching classes that do not inherit from BaseException is not allowed".

To Reproduce

Provide a minimal code :

The code below is what I ran.

import gym import panda_gym from stable_baselines3 import DDPG

env = gym.make("PandaReach-v2") model = DDPG(policy="MultiInputPolicy", env=env) model.learn(30_000)

System

• OS: Window 11
• Python version (python --version): 3.9.10
• Package version (pip list | grep panda-gym): 2.0.4(panda-gym) (I had previously installed v3, and then reinstalled v2.)

[ChiaChing-Yen]

Try adding env.close() at the end of the script?

see #80

[qgallouedec]

I'd recommend using v3 and gymnasium Yes the error originates from pybullet when you don't close the env (as far as I remember) which shouldn't be an issue if you close the close) If the error persists with v3, please open a new issue