what is correct spelling of recognition in python when we are using pip cmd code example

Example 1: 'pip' is not recognized as an internal or external command, operable program or batch file.

py -m pip install [packagename]

Example 2: pip system path windows environment

C:\Users\<USER_NAME>\AppData\Local\Programs\Python\Python39\Scripts
CMD LINE:
set PATH=%PATH%;C:\Python34\Scripts