[Bug Report] MiniGrid ViewSizeWrapper doesn't seem to working anymore

[subho406]

Descrption Seems like the ViewSizeWrapper is not working anymore. I have tried reproducing the results in Google Colab and Mac M1.

Code:

import gymnasium as gym
import matplotlib.pyplot as plt
from minigrid.wrappers import ViewSizeWrapper
import minigrid
env = gym.make("MiniGrid-DoorKey-5x5-v0")
obs, _ = env.reset()
print(obs['image'].shape)

env_obs = ViewSizeWrapper(env, agent_view_size=5)
obs, _ = env_obs.reset()
print(obs['image'].shape)

Output:

(7, 7, 3)
(7, 7, 3)

System Info Describe the characteristic of your environment:

• System info: 22.3.0 Darwin Kernel Version 22.3.0: Mon Jan 30 20:39:35 PST 2023; root:xnu-8792.81.3~2/RELEASE_ARM64_T8103 arm64
• Python version: 3.9

  gymnasium                                         0.27.1
  Minigrid                           2.1.0

Checklist

• [x] I have checked that there is no similar issue in the repo (required)

[xixiha5230]

same problem

[BolunDai0216]

I think the issue is not using the newest version of Minigrid. Can you clone the master branch and see if that fixes it?

The issue that you mentioned should be resolved by PR #305. Using the newest Minigrid version, after running the code you provided, I get

(7, 7, 3)
(5, 5, 3)

[subho406]

Yes, that works! So the issue was ViewSizeWrapper was inheriting the wrong class. Thanks!

[jbloomAus]

We can probably close this issue since it's solved by the current code?