[Bug Report] cannot import name 'Renderer' from 'magent'

[hellofinch]

If you are submitting a bug report, please fill in the following details and use the tag [bug].

Describe the bug
I try to change the environment based on this script. The origin script used waterworld which has bug so I change it to magent.battle. The output show below:

Traceback (most recent call last):
  File "rlpe.py", line 4, in <module>
    from pettingzoo.magent import battle_v4
  File "/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/pettingzoo/magent/__init__.py", line 5, in __getattr__
    return deprecated_handler(env_name, __path__, __name__)
  File "/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/pettingzoo/utils/deprecated_module.py", line 52, in deprecated_handler
    spec.loader.exec_module(module)
  File "/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/pettingzoo/magent/battle_v4.py", line 1, in <module>
    from .battle.battle import env, parallel_env, raw_env  # noqa: F401
  File "/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/pettingzoo/magent/battle/battle.py", line 7, in <module>
    from pettingzoo.magent.magent_env import magent_parallel_env, make_env
  File "/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/pettingzoo/magent/magent_env.py", line 4, in <module>
    from magent import Renderer
ImportError: cannot import name 'Renderer' from 'magent' (/anaconda3/envs/PettingZoo/lib/python3.7/site-packages/magent/__init__.py)

Code example

from ray import tune
from ray.tune.registry import register_env
from ray.rllib.env.wrappers.pettingzoo_env import PettingZooEnv
from pettingzoo.magent import battle_v4

# Based on code from github.com/parametersharingmadrl/parametersharingmadrl

if __name__ == "__main__":
    # RDQN - Rainbow DQN
    # ADQN - Apex DQN
    def env_creator(args):
        return PettingZooEnv(battle_v4.env(map_size=45, minimap_mode=False, step_reward=-0.005,
dead_penalty=-0.1, attack_penalty=-0.1, attack_opponent_reward=0.2,
max_cycles=1000, extra_features=False))

    env = env_creator({})
    register_env("battle", env_creator)

    tune.run(
        "APEX_DDPG",
        stop={"episodes_total": 60000},
        checkpoint_freq=10,
        config={
            # Enviroment specific
            "env": "battle",
            # General
            "num_gpus": 1,
            "num_workers": 2,
            # Method specific
            "multiagent": {
                "policies": set(env.agents),
                "policy_mapping_fn": (lambda agent_id, episode, **kwargs: agent_id),
            },
        },
    )

System Info
Describe the characteristic of your environment:
Linux with conda and pip
Python 3.7.9
PettingZoo 1.20.1
supersuit 3.5.0
gym 0.22.0
Additional context
Add any other context about the problem here.

Checklist

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

[jjshoots]

@dsctt could you have a look at this?

[benblack769]

What is the magent package version?

[hellofinch]

@benblack769 How can I know the version? I try pettingzoo.magent.__version__ but it failed.

[jjshoots]

@hellofinch magent is a standalone package on pypi, try pip3 show magent in the terminal.

[hellofinch]

@jjshoots I use 0.1.13

Name: magent
Version: 0.1.13
Summary: Multi-Agent Reinforcement Learning environments with very large numbers of agents
Home-page: https://github.com/PettingZoo-Team/MAgent
Author: PettingZoo Team
Author-email: justinkterry@gmail.com
License: UNKNOWN
Location: /anaconda3/envs/PettingZoo/lib/python3.7/site-packages
Requires: numpy, pygame
Required-by:

[benblack769]

0.1.13 is a very old version of MAgent. You should be able to upgrade your version to the most recent version with pip install magent --upgrade or pip install magent==0.2.3

Also watch out, if you installed the original, unmaintained magent package here https://github.com/geek-ai/MAgent, then you will need to manually uninstall it, which might be tricky.

[hellofinch]

I upgrade themagent.

Name: magent
Version: 0.2.3
Summary: Multi-Agent Reinforcement Learning environments with very large numbers of agents
Home-page: https://github.com/Farama-Foundation/MAgent
Author: Farama Foundation
Author-email: jkterry@farama.org
License: None
Location: /anaconda3/envs/PettingZoo/lib/python3.7/site-packages
Requires: numpy, pygame
Required-by:

And I try to run the script again and another error comes out.

Traceback (most recent call last):
  File "rlpe.py", line 31, in <module>
    "policies": set(env.agents),
AttributeError: 'PettingZooEnv' object has no attribute 'agents'

[WillDudley]

magent is depreciated

[hellofinch]

@WillDudley May I know why magent is depreciated? I think it is a good environment that has an invariable observation shape.
If I want to use magent, what can I do?

[jjshoots]

@hellofinch Magent has not been deprecated, it's just been moved to its own repository because it deserves to have its own management team behind it. View it here :).

[WillDudley]

We should add a warning to notify users of this. I'll add it to the list of things to do.

Thanks for the issue!

[dsctt]

We should add a warning to notify users of this. I'll add it to the list of things to do.

Thanks for the issue!

#857