摘自https://blog.csdn.net/qq_38154948/article/details/83988948
pip is configured with locations that require TLS/SSL, however the ssl modul
安装openssl
sudo apt-get install openssl
sudo apt-get install libssl-dev
更改这个文件的配置/home/pi/Python-3.6.1/Modules/Setup
sudo nano /home/pi/Python-3.6.1/Modules/Setup
去掉几个注释就好了

cd Python-3.6.1
sudo make
sudo make install
重新编译安装就好了