[FEATURE] Align to gym>=0.26 API

[epignatelli]

🚀 Feature

MiniHack currently implements thegym<0.26API, which is deprecated.

Motivation

Aligning to gym>=0.26 has some ready-baked benefits, for example:

import gym.vector
import minihack

num_envs = 16
env = gym.vector.make("MiniHack-KeyRoom-Fixed-S5-v0", num_envs=num_envs)

and a step forward for gymnasium compat as well.

Pitch

The required steps are in the official migration guide:
https://gymnasium.farama.org/content/migration-guide/

Alternatives

Additional context

[jbial]

Any updates on this? I see that the PR passed the checks - any reason for the delay? This would be a great enhancement.

[epignatelli]

Hey @jbial, I'll let maintainers chip in, but this is waiting for the same set changes in the NLE, and I don't think it will be merged anytime before that happens. See facebookresearch/nle#357 to track the issue in NLE.

If you need the 0.26 gym interface, you can use the fork for the moment, I'll do my best to keep it synched.

[LukasFehring]

Hey @jbial, @epignatelli,
The branch you mentioned was merged two weeks ago, seemingly instantly after you mentioned the issue.