python2.7 and python3.6 coexist, use Pip to install third-party libraries

Because in general, the window command line runs PIP, the default is to run python3.6 Pip, the path to install a third-party library is also python3.6, and the installation path is:

How do I run the PIP installation in a 2.7 environment? There are online tutorials that need to change the name of the Python application to python2, in fact, not so troublesome, directly run the 2.7 environment of the PIP on the line:

The path is under scripts:

So just run the PIP directly in CMD.

It's that simple, just try it.

python2.7 and python3.6 coexist, use Pip to install third-party libraries