[Bug Report] Spec.to_json() of SimpleCrossing fails

Farama-Foundation / Minigrid

Simple and easily configurable grid world environments for reinforcement learning

https://minigrid.farama.org/

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Open younik opened 1 year ago

younik commented 1 year ago

Describe the bug The spec dict of SimpleCrossing environments is not serializable due to obstacle_type.

Code example

import gymnasium as gym
import minigrid

gym.make("MiniGrid-SimpleCrossingS11N5-v0").spec.to_json()

System Info Minigrid installed via pip install minigrid. I am using OSX, with Python 3.11