PyQt报错：Cannot load backend 'Qt5Agg' which requires the 'qt5' interactive framework, as 'headless' is currently running
问题描述
在远程链接ubuntu虚拟机进行开发时，报错。
解决方案
原因是pyqt需要绘制UI，而使用远程链接的终端（如windows powershell、xshell、vscode terminal等）不具有图形协议（大概），所以必须回到ubuntu虚拟机上执行代码。
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