[RLlib] Updated PettingZoo+RLlib tutorial; Removed pettingzoo example…

… script (ray-project#19069) * Updated PettingZoo+RLlib tutorial Updated the tutorial and added link to the blog post by the PettingZoo team. * Ran linting * Converted link to tinyurl for linting * fixed line lengths * Decrease num_workers to 1 * Added comments * Decreased num_workers * Decreased timesteps * Increased num_workers * Update links and remove pettingzoo_env.py * remove pettingzoo.py script from tests Co-authored-by: sven1977 <[email protected]>
cread · Oct 29, 2021 · b9c9cc5 · b9c9cc5
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diff --git a/doc/source/rllib-env.rst b/doc/source/rllib-env.rst
@@ -228,7 +228,7 @@ PettingZoo Multi-Agent Environments
     # you can pass arguments to the environment creator with the env_config option in the config
     config['env_config'] = {"num_floors": 5}
 
-A more complete example is here: `pettingzoo_env.py <https://github.com/ray-project/ray/blob/master/rllib/examples/pettingzoo_env.py>`__
+A more complete example is here: `rllib_pistonball.py <https://github.com/Farama-Foundation/PettingZoo/blob/master/tutorials/rllib_pistonball.py>`__
 
 
 Rock Paper Scissors Example

diff --git a/doc/source/rllib-examples.rst b/doc/source/rllib-examples.rst
@@ -146,7 +146,7 @@ Multi-Agent and Hierarchical
    Example of different heuristic and learned policies competing against each other in rock-paper-scissors.
 - `Two-step game <https://github.com/ray-project/ray/blob/master/rllib/examples/two_step_game.py>`__:
    Example of the two-step game from the `QMIX paper <https://arxiv.org/pdf/1803.11485.pdf>`__.
-- `PettingZoo multi-agent example <https://github.com/ray-project/ray/blob/master/rllib/examples/pettingzoo_env.py>`__:
+- `PettingZoo multi-agent example <https://github.com/Farama-Foundation/PettingZoo/blob/master/tutorials/rllib_pistonball.py>`__:
    Example on how to use RLlib to learn in `PettingZoo <https://www.pettingzoo.ml>`__ multi-agent environments.
 - `PPO with centralized critic on two-step game <https://github.com/ray-project/ray/blob/master/rllib/examples/centralized_critic.py>`__:
    Example of customizing PPO to leverage a centralized value function.

diff --git a/rllib/BUILD b/rllib/BUILD
@@ -2719,14 +2719,6 @@ py_test(
     args = ["--as-test", "--stop-reward=80.0"]
 )
 
-py_test(
-    name = "examples/pettingzoo_env",
-    main = "examples/pettingzoo_env.py",
-    tags = ["team:ml", "examples", "examples_P"],
-    size = "medium",
-    srcs = ["examples/pettingzoo_env.py"],
-)
-
 py_test(
     name = "examples/preprocessing_disabled_tf",
     main = "examples/preprocessing_disabled.py",

diff --git a/rllib/examples/pettingzoo_env.py b/rllib/examples/pettingzoo_env.py