Deleting "C:\Users\Username\AppData\Local\Microsoft\WindowsApps\" from the system environment variable, PATH, prevented the Microsoft Store application from launching when I typed python.exe and python3.exe in a command prompt.
Deleting "C:\Users\Username\AppData\Local\Microsoft\WindowsApps\" from the system environment variable, PATH, prevented the Microsoft Store application from launching when I typed python.exe and python3.exe in a command prompt.