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如下测试代码可将训练过程保存在视频中:
import gym
from gym import wrappers
env=gym.make('CartPole-v0')
env=wrappers.Monitor(env,'/tmp/cartpole-experiment-1')
for _ in range(20):
observation=env.reset()
for t in range(100):
env.render()
print observation
action=env.action_space.sample()
observation,reward,done,info=env.step(action)
if done:
print("Episode finished after {} timesteps".format(t+1))
break
如果保存的视频不能观看,可能是软件问题,可以尝试下述命令:
sudo apt install libdvdnav4 libdvdread4 gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly libdvd-pkg
sudo apt install ubuntu-restricted-extras