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首页 > 解决方案 > ImportError：在处理异常时运行`from pyglet.gl import *`时发生错误：找不到库“GL”

python - ImportError：在处理异常时运行`from pyglet.gl import *`时发生错误：找不到库“GL”

问题描述

当我在 docker 中运行强化任务的 python 代码时，它无法呈现。当我收到导入错误时，我尝试安装 GL，但它仍然给我同样的错误。有没有其他方法可以解决这个问题而不会弄乱包管理器？

错误信息：

/usr/local/lib/python3.7/site-packages/gym/logger.py:30: UserWarning: WARN: Box bound precision lowered by casting to float32
warnings.warn(colorize('%s: %s'%('WARN', msg % args), 'yellow'))
Episode 0
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/lbforaging/foraging/rendering.py", line 33, in <module>
  from pyglet.gl import *
File "/usr/local/lib/python3.7/site-packages/pyglet/gl/__init__.py", line 95, in <module>
  from pyglet.gl.lib import GLException
File "/usr/local/lib/python3.7/site-packages/pyglet/gl/lib.py", line 149, in <module>
  from pyglet.gl.lib_glx import link_GL, link_GLU, link_GLX
File "/usr/local/lib/python3.7/site-packages/pyglet/gl/lib_glx.py", line 45, in <module>
  gl_lib = pyglet.lib.load_library('GL')
File "/usr/local/lib/python3.7/site-packages/pyglet/lib.py", line 164, in load_library
  raise ImportError('Library "%s" not found.' % names[0])
ImportError: Library "GL" not found.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "if.py", line 106, in <module>
  env.render()
File "/usr/local/lib/python3.7/site-packages/lbforaging/foraging/environment.py", line 501, in render
  self._init_render()
File "/usr/local/lib/python3.7/site-packages/lbforaging/foraging/environment.py", line 494, in 
 _init_render
from .rendering import Viewer
File "/usr/local/lib/python3.7/site-packages/lbforaging/foraging/rendering.py", line 41, in <module>
  """
ImportError:
Error occured while running `from pyglet.gl import *`
HINT: make sure you have OpenGL install. On Ubuntu, you can run 'apt-get install python-opengl'.
If you're running on a server, you may need a virtual frame buffer; something like this should work:
'xvfb-run -s "-screen 0 1400x900x24" python <your_script.py>'

pip3 install GL表示要求已经满足并给出相同的错误“找不到GL”并pip3 install OpenGL给出：

ERROR: Could not find a version that satisfies the requirement OpenGL
ERROR: No matching distribution found for OpenGL

标签： pythonopenglrenderreinforcement-learningpyglet

解决方案

您需要旧版本的 pyglet；通过 pip 安装它应该可以解决问题：

pip install pyglet==1.5.11

此处进一步讨论：

https://github.com/openai/gym/issues/2101

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