ray/rllib/scripts.py
Sven 60d4d5e1aa Remove future imports (#6724)
* Remove all __future__ imports from RLlib.

* Remove (object) again from tf_run_builder.py::TFRunBuilder.

* Fix 2xLINT warnings.

* Fix broken appo_policy import (must be appo_tf_policy)

* Remove future imports from all other ray files (not just RLlib).

* Remove future imports from all other ray files (not just RLlib).

* Remove future import blocks that contain `unicode_literals` as well.
Revert appo_tf_policy.py to appo_policy.py (belongs to another PR).

* Add two empty lines before Schedule class.

* Put back __future__ imports into determine_tests_to_run.py. Fails otherwise on a py2/print related error.
2020-01-09 00:15:48 -08:00

38 lines
1.2 KiB
Python

#!/usr/bin/env python
import argparse
from ray.rllib import train
from ray.rllib import rollout
EXAMPLE_USAGE = """
Example usage for training:
rllib train --run DQN --env CartPole-v0
Example usage for rollout:
rllib rollout /trial_dir/checkpoint_1/checkpoint-1 --run DQN
"""
def cli():
parser = argparse.ArgumentParser(
description="Train or Run an RLlib Agent.",
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=EXAMPLE_USAGE)
subcommand_group = parser.add_subparsers(
help="Commands to train or run an RLlib agent.", dest="command")
# see _SubParsersAction.add_parser in
# https://github.com/python/cpython/blob/master/Lib/argparse.py
train_parser = train.create_parser(
lambda **kwargs: subcommand_group.add_parser("train", **kwargs))
rollout_parser = rollout.create_parser(
lambda **kwargs: subcommand_group.add_parser("rollout", **kwargs))
options = parser.parse_args()
if options.command == "train":
train.run(options, train_parser)
elif options.command == "rollout":
rollout.run(options, rollout_parser)
else:
parser.print_help()