ERROR: unknown command "pip"

method 1:

First execution: where pip get the result, if this result just below Python installation path, for example, there will be the implementation of the program loadrunner pip will loadrunner after unloading, they can go to perform a pip.

Method 2:

1, where pip pip to find the path of all;

2, find, and enter the pip Road King in Python;

3, and then install it by pip install selenium;