Answer 1

Windows, search on enviroment variables, click on it, select adanced option,
In the openned setting menu, select variable PATH, or if none, create one named PATH.
Then ckick on edit to edit the environment.
If the PATH environment has some path attached to it, just add your path by first adding the collon (;) the followed by the python path.
If it does not, just add the python path to it and click apply.
Close cmd if opened then reopen again and type py 😊
You are set.
Happy coding 😊 Keep coding 🙏

Answer 2

CodeShow

https://www.tutorialspoint.com/JUMP_LINK__&&__python__&&__JUMP_LINK/python_environment.htm

https://www.journaldev.com/24935/python-set-environment-variable