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Fix exception with watching pistonball environments #663

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Merged
merged 1 commit into from
Jun 11, 2022
Merged

Fix exception with watching pistonball environments #663

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7 changes: 7 additions & 0 deletions test/pettingzoo/pistonball.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import argparse
import os
import warnings
from typing import List, Optional, Tuple

import gym
Expand Down Expand Up @@ -177,6 +178,12 @@ def watch(
args: argparse.Namespace = get_args(), policy: Optional[BasePolicy] = None
) -> None:
env = DummyVectorEnv([get_env])
if not policy:
warnings.warn(
"watching random agents, as loading pre-trained policies is "
"currently not supported"
)
policy, _, _ = get_agents(args)
policy.eval()
[agent.set_eps(args.eps_test) for agent in policy.policies.values()]
collector = Collector(policy, env, exploration_noise=True)
Expand Down
7 changes: 7 additions & 0 deletions test/pettingzoo/pistonball_continuous.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import argparse
import os
import warnings
from typing import Any, Dict, List, Optional, Tuple, Union

import gym
Expand Down Expand Up @@ -269,6 +270,12 @@ def watch(
args: argparse.Namespace = get_args(), policy: Optional[BasePolicy] = None
) -> None:
env = DummyVectorEnv([get_env])
if not policy:
warnings.warn(
"watching random agents, as loading pre-trained policies is "
"currently not supported"
)
policy, _, _ = get_agents(args)
policy.eval()
collector = Collector(policy, env)
result = collector.collect(n_episode=1, render=args.render)
Expand Down