Installation of PyQt and commonly used libraries

Installation of specified version of pyqt

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyqt5==5.14.2
{
    
    
	会自动安装 sip 包 
	不需要再 安装以下
	pip install -i https://pypi.tuna.tsinghua.edu.cn/simple sip
}

Installation of commonly used libraries

• opencv-python
  pip install opencv-python==3.4.9.33 -i https://pypi.tuna.tsinghua.edu.cn/simple

• VLC
  Reference: Link