1.按照这个步骤安装
https://blog.csdn.net/qq_24373725/article/details/79638932
2.pip2提示失败
python2 -m pip install --upgrade pip
执行后ok
python2和python3安装后pip2提示“”failed to create proces
原文：https://www.cnblogs.com/1234abcdttttjy001/p/11367726.html
