完美解决 python ImportError: Failed to import any qt binding

问题背景

在ContOS服务器上测试项目

解决方案

谷歌查询

解决步骤

1. 降低matplotlib版本至2.2.2

pip3 install matplotlib==2.2.2

2. 出现新的问题，ImportError: Matplotlib qt-based backends require an external PyQt4, PyQt5,PySide or PySide2 package to be installed, but it was not found.
   解决方法：安装PyQt5

pip3 install PyQt5

3. 安装后仍出现2中的问题，应该是缺少PySide
   解决方法,安装PySide

pip3 install PySide

4. 安装PySide时报错：Complete output (1 lines):only these python versions are supported: [(2, 6), (2, 7), (3, 2), (3, 3), (3, 4)]
   解决方法：安装PySide2

pip3 install PySide2