qt问题scb

背景：

python3于ubuntu上编译pymol，装毕後，运行需要pyqt。

故以pip安装pyqt5，运行报错：

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.

Aborted (core dumped)

解决：

sudo apt-get install libpythonqt-qt5-python3-dev