Seed issue with dqn.py and others

[vwxyzjn]

Problem Description

Currently, dqn.py and other scripts incorrectly set the environment seed to be always 0

cleanrl/cleanrl/dqn.py

Lines 69 to 81 in a1b5b71

	def make_env(env_id, seed, idx, capture_video, run_name):
	def thunk():
	env = gym.make(env_id)
	env = gym.wrappers.RecordEpisodeStatistics(env)
	if capture_video:
	if idx == 0:
	env = gym.wrappers.RecordVideo(env, f"videos/{run_name}")
	env.seed(seed)
	env.action_space.seed(seed)
	env.observation_space.seed(seed)
	return env
	return thunk

cleanrl/cleanrl/dqn.py

Line 135 in a1b5b71

envs = gym.vector.SyncVectorEnv([make_env(args.env_id, 0, 0, args.capture_video, run_name)])

The correct implementation should be

envs = gym.vector.SyncVectorEnv([make_env(args.env_id, args.seed, 0, args.capture_video, run_name)])