踩坑

踩坑1：

C:\Users\16565>pip intall numpy

Fatal error in launcher: Unable to create process using '"'

这是因为没有python -m pip intall numpy

踩坑2：

C:\Users\16565>python -m pip install numpy

Requirement already satisfied: numpy in c:\python36\lib\site-packages
Cache entry deserialization failed, entry ignored
Cache entry deserialization failed, entry ignored
You are using pip version 9.0.1, however version 10.0.1 is available.

You should consider upgrading via the 'python -m pip install --upgrade pip' command.

解决的方法：用管理员方式运行命令行试试