When use PIP to execute commands on the command line, often encounter the problem - not PIP internal or external command, nor a runnable program or batch file,
At this time of the need to find the Python, the file under the scripts file path, through the "CD path above" positioning to the scripts file path, and then execute PIP commands, you will find a success,
Of course the more troublesome, every time I perform all need positioning to the scripts directory path, if think every time trouble, need to be done in the environment variable Settings,