This is what tells the command line which folders it needs to look in when searching for the file. If Python isn’t added to PATH, then you would need to point CMD directly to the Python.exe and ...

Once the Python file is saved in Notepad, ... must be included in the user's PATH variable to function from the command line. How to set the interpreter in the PATH differs between Windows systems.

Read Also: How to install NumPy using PIP on Windows. 4] Notepad++. Notepad++ is a very versatile source code editor and text editor. It supports a wide range of formats to open a normal text file ...