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1# Usage code
2import gymnasium as gym
3import renderlab as rl
4from huggingface_sb3 import load_from_hub
5from stable_baselines3 import PPO
6from stable_baselines3.common.vec_env import DummyVecEnv
7from stable_baselines3.common.evaluation import evaluate_policy
8from stable_baselines3.common.monitor import Monitor
9
10repo_id = "VinayHajare/ppo-Pusher-v4"
11filename = "ppo-Pusher-v4.zip"
12
13eval_env = gym.make("Pusher-v4",render_mode="rgb_array")
14checkpoint = load_from_hub(repo_id, filename)
15model = PPO.load(checkpoint,env=eval_env,print_system_info=True)
16
17mean_reward, std_reward = evaluate_policy(model,eval_env, n_eval_episodes=10, deterministic=True)
18print(f"mean_reward={mean_reward:.2f} +/- {std_reward}")
19
20# Enjoy trained agent
21env = eval_env
22env = rl.RenderFrame(env,"./output")
23observation, info = env.reset()
24for _ in range(1000):
25 action, _states = model.predict(observation, deterministic=True)
26 observation, rewards, terminated, truncated, info = env.step(action)
27env.play()