Collecting git+https://github.com/JoinQuant/jqdatasdk.git
Cloning https://github.com/JoinQuant/jqdatasdk.git to c:\users\lihaoc~1\appdata\local\temp\pip-wpg_ym5q-build
Error [WinError 2] 系统找不到指定的文件。 while executing command git clone -q https://github.com/JoinQuant/jqdatasdk.git C:\Users\LIHAOC~1\AppData\Local\Temp\pip-wpg_ym5q-build
Cannot find command 'git'
You are using pip version 9.0.1, however version 18.0 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.