Как запустить программу Python на фоне?
Переименуйте свой скрипт в .pyw

Python scripts (files with the extension .py) will be executed by python.exe by default. This executable opens a terminal, which stays open even if the program uses a GUI. If you do not want this to happen, use the extension .pyw which will cause the script to be executed by pythonw.exe by default (both executables are located in the top-level of your Python installation directory). This suppresses the terminal window on startup.


https://docs.python.org/2/using/windows.html#execu...
сделать файл исполняемым и запустить.
PS Недавно меня повысили до Адмирала.