test_pynput_suppress.py

from pynput import mouse

def main(): 
    def on_move(x, y):
        print('**** on_move', x, y)

    def _darwin_intercept(event_type, event):
        """For MacOS support.
        The user must grant Accessibility access to Terminal, in the
        Security & Privacy > Privacy system preferences.
        """
        print('intercept')
        # returning None should delete the event, to suppress OS-level event handling.
        # https://developer.apple.com/documentation/coregraphics/cgeventtapcallback?language=objc
        # https://pynput.readthedocs.io/en/latest/faq.html#macos
        # FIXME but it doesn't! even with suppress=True
        return None

    with mouse.Listener(suppress=True, on_move=on_move, darwin_intercept=_darwin_intercept) as listener:
        listener.join()


if __name__ == "__main__":
    main()