ubuntu_PyQt5运行报错qt.qpa.plugin: Could not load

报错：

[email protected]:~/DVP2-Linux64_2020.12.3/Python/demo$ ./test.py 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.

已放弃 (核心已转储)

原因和解决：

https://www.jb51.net/article/193024.htm

太长不看版：

sudo apt-get install libxcb-xinerama0