Files
2026-07-13 13:17:40 +08:00

47 lines
1.1 KiB
Python

#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
# Do not import tf for testing purposes.
os.environ["RLLIB_TEST_NO_TF_IMPORT"] = "1"
# Test registering (includes importing) all Algorithms.
from ray.rllib import _register_all
# This should surface any dependency on tf, e.g. inside function
# signatures/typehints.
_register_all()
from ray.rllib.algorithms.ppo import PPOConfig
assert (
"tensorflow" not in sys.modules
), "`tensorflow` initially present, when it shouldn't!"
config = (
PPOConfig()
.api_stack(
enable_env_runner_and_connector_v2=True,
enable_rl_module_and_learner=True,
)
.environment("CartPole-v1")
.framework("torch")
.env_runners(num_env_runners=0)
)
# Note: No ray.init(), to test it works without Ray
algo = config.build()
algo.train()
assert (
"tensorflow" not in sys.modules
), "`tensorflow` should not be imported after creating and training A3C!"
# Clean up.
del os.environ["RLLIB_TEST_NO_TF_IMPORT"]
algo.stop()
print("ok")