If PIP is not recognized as an internal or external command when trying to install Python libraries here are some suggestions to help you.

This post explains how to add Python to PATH using two simple methods. Now you can run Python code from anywhere using the command prompt!

This command will show the installed version of Node.js if the PATH is set correctly. How to Fix the 'npm' is not recognized as an internal or external command Error ...

According to them, when they execute the WMIC command, instead of showing the desired result, it displays WMIC is not recognized as an internal or external command, operable program or batch file ...