unable to render video in gitpod

[tatakof]

Problem Description

Unable to render video when using gitpod.

Checklist

• [x] I have installed dependencies via poetry install (see CleanRL's installation guideline.
• [x] I have checked that there is no similar issue in the repo (required)

Current Behavior

python ppo.py --seed 1 --env-id CartPole-v0 --total-timesteps 50000 --capture-video /home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/torch/utils/tensorboard/init.py:4: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead. if not hasattr(tensorboard, "version") or LooseVersion( /home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/envs/registration.py:505: UserWarning: WARN: The environment CartPole-v0 is out of date. You should consider upgrading to version v1 with the environment ID CartPole-v1. logger.warn( /home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/core.py:172: DeprecationWarning: WARN: Function env.seed(seed) is marked as deprecated and will be removed in the future. Please use env.reset(seed=seed) instead. deprecation( /home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/monitoring/video_recorder.py:115: DeprecationWarning: WARN:env.metadata["video.frames_per_second"] is marked as deprecated and will be replaced with env.metadata["render_fps"] see https://github.com/openai/gym/pull/2654 for more details logger.deprecation( Traceback (most recent call last): File "ppo.py", line 179, in next_obs = torch.Tensor(envs.reset()).to(device) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/vector/vector_env.py", line 80, in reset return self.reset_wait(seed=seed, return_info=return_info, options=options) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/vector/sync_vector_env.py", line 115, in reset_wait observation = env.reset(kwargs) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/record_video.py", line 58, in reset self.start_video_recorder() File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/record_video.py", line 75, in start_video_recorder self.video_recorder.capture_frame() File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/monitoring/video_recorder.py", line 157, in capture_frame frame = self.env.render(mode=render_mode) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/core.py", line 286, in render return self.env.render(mode, kwargs) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/core.py", line 286, in render return self.env.render(mode, kwargs) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/core.py", line 286, in render return self.env.render(mode, kwargs) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/envs/classic_control/cartpole.py", line 265, in render np.array(pygame.surfarray.pixels3d(self.screen)), axes=(1, 0, 2) File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/pygame/surfarray.py", line 187, in pixels3d return numpy_array(surface.get_view('3'), copy=False) ValueError: unsupported bit depth 16 for 3D reference array Exception ignored in: <function VideoRecorder.del at 0x7f2f695fb1f0> Traceback (most recent call last): File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/monitoring/video_recorder.py", line 222, in del File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/monitoring/video_recorder.py", line 211, in close File "/home/gitpod/.pyenv/versions/3.8.12/lib/python3.8/site-packages/gym/wrappers/monitoring/video_recorder.py", line 217, in write_metadata NameError: name 'open' is not defined

Expected Behavior

capture a video as shown in https://docs.cleanrl.dev/get-started/basic-usage/#visualize-the-agents-gameplay-videos

Possible Solution

Steps to Reproduce

1. Open a gitpod instance
2. install requirements.txt
3. run python ppo.py --seed 1 --env-id CartPole-v0 --total-timesteps 50000 --capture-video in gitpods terminal inside /workspace/cleanrl/cleanrl