分为Windows，linux，树莓派（或低端电脑）安装方式
https://xutongxin.wordpress.com/2019/01/28/pyqt5-%E5%85%A5%E9%97%A8%E6%95%99%E5%AD%A6%E4%B9%8B1-1%E5%AE%89%E8%A3%85pyqt%E4%B9%8Banaconda/
保证可用性，2019好
Anaconda：https://www.anaconda.com/download/
太大了？
试试miniconda:
https://docs.conda.io/en/latest/miniconda.html
