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解決AttributeError:'NoneTypeobject' has no attribute'Window'的問題(親測有效)

時間：2023-03-17來源：系統城裝機大師作者：佚名

已解決VSCode運行強化學習代碼拋出異常AttributeError: ‘NoneType’ object has no attribute ‘Window’
pyglet.canvas.xlib.NoSuchDisplayException: Cannot connect to “None” 的正確解決方法，親測有效??！

報錯問題

一個小伙伴遇到問題跑來私信我，在VSCode運行強化學習代碼，但是發生了報錯（當時他心里瞬間涼了一大截，跑來找我求助，然后順利幫助他解決了，順便記錄一下希望可以幫助到更多遇到這個bug不會解決的小伙伴），報錯代碼如下所示：

1 2	`import` `pyglet` `window` `=` `pyglet.window.Window(500,` `500)`

報錯信息內容如下所示：

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25 Traceback (most recent call last):
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/__init__.py", line 334, in __getattr__
return getattr(self._module, name)
AttributeError: 'NoneType' object has no attribute 'Window'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/home/justin/Dropbox/jr/py/pyglet_games/pyglet_demo/displaytest.py", line 5, in <module>
window = pyglet.window.Window(500, 500)
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/__init__.py", line 340, in __getattr__
__import__(import_name)
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/window/__init__.py", line 1891, in <module>
gl._create_shadow_window()
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/gl/__init__.py", line 220, in _create_shadow_window
_shadow_window = Window(width=1, height=1, visible=False)
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/window/xlib/__init__.py", line 171, in __init__
super(XlibWindow, self).__init__(*args, **kwargs)
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/window/__init__.py", line 573, in __init__
display = pyglet.canvas.get_display()
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/canvas/__init__.py", line 94, in get_display
return Display()
File "/home/justin/.local/lib/python3.8/site-packages/pyglet/canvas/xlib.py", line 123, in __init__
raise NoSuchDisplayException('Cannot connect to "%s"' % name)
pyglet.canvas.xlib.NoSuchDisplayException: Cannot connect to "None"

報錯翻譯

報錯信息內容翻譯如下所示：

屬性錯誤:“NoneType”對象沒有屬性“Window”
pyglet.canvas.xlib.NoSuch顯示異常:無法連接到“None”

報錯原因

報錯原因：

在其他少數情況下，它不是以一種方式運行而不是以另一種方式工作的。大多數解決方案都涉及更改圖形卡設置或運行X11服務器。這在這里似乎不相關，因為它似乎只與VSCode相關。

小伙伴們按照下面的方法配置vscode即可即可?。?！

解決方法

這是vscode內部終端的問題，將控制臺設置為launch.json中的另一個選項解決了這個問題：

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15 {
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "Python: Current File",
"type": "python",
"request": "launch",
"program": "${file}",
"console": "externalTerminal"
}
]
}