ray/rllib/tests/test_dependency_tf.py
Balaji Veeramani 7f1bacc7dc
[CI] Format Python code with Black (#21975)
See #21316 and #21311 for the motivation behind these changes.
2022-01-29 18:41:57 -08:00

29 lines
734 B
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"
from ray.rllib.agents.a3c import A2CTrainer
assert (
"tensorflow" not in sys.modules
), "`tensorflow` initially present, when it shouldn't!"
# Note: No ray.init(), to test it works without Ray
trainer = A2CTrainer(
env="CartPole-v0", config={"framework": "torch", "num_workers": 0}
)
trainer.train()
assert "tensorflow" not in sys.modules, (
"`tensorflow` should not be imported after creating and " "training A3CTrainer!"
)
# Clean up.
del os.environ["RLLIB_TEST_NO_TF_IMPORT"]
print("ok")