What version of MAgent is compatible with MARLlib?

[Morphlng]

According to the doc about Environments, it would be fine to just use pip install pettingzoo[magent]. However, the latest version of pettingzoo has moved MAgent to a dedicated project, so its unusable now.

I've compared the code in envs/base_env/magent.py with pettingzoo's previous version.

MARLlib/envs/base_env/magent.py

Lines 5 to 14 in e1ddcef

	from pettingzoo.magent import adversarial_pursuit_v3, battle_v3, battlefield_v3, combined_arms_v5, gather_v3, \
	tiger_deer_v3
	REGISTRY = {}
	REGISTRY["adversarial_pursuit"] = adversarial_pursuit_v3.parallel_env
	REGISTRY["battle"] = battle_v3.parallel_env
	REGISTRY["battlefield"] = battlefield_v3.parallel_env
	REGISTRY["combined_arms"] = combined_arms_v5.parallel_env
	REGISTRY["gather"] = gather_v3.parallel_env
	REGISTRY["tiger_deer"] = tiger_deer_v3.parallel_env

It seems like we have to use version before 1.15.0 (e.g. 1.14.0). Yet, after pip install pettingzoo[magent]==1.14.0 and run a test, it reports problem as: "cannot import name 'aec_to_parallel' from 'pettingzoo.utils.conversions'"

I've tried newer version of MAgent and changed magent.py accordingly, but it will raise other problems.

So which version has been tested exactly?

[Morphlng]

Okay I've found a solution. The following version works for me pip install supersuit==3.3.2 pettingzoo[magent]==1.14.0. Higher version of pettingzoo doesn't match the supersuit check.

I think the document/readme need an update.

[Theohhhu]

A requirements.txt is here for you to refer. Yet there is no need to strictly follow it.

The document/readme will be updated.