使用 Python 在 Raspberry Pi 上打开程序？

Question

How can i open and close any programm on my raspberry pi using python?

I want to open florence.desktop (Virtual Keyboard) and close it. I have tried it with:

P = subprocess.Popen(["/usr/share/applications/florence.desktop"]

but the error message is:

Traceback (most recent call last): File "/usr/lib/python3.7/tkinter/ init .py", line 1705, in call return self.func(*args) File "/home/pi/Desktop/Software_1.0.2/Software/Software/Hautpprogramm/Start_Seite.py", line 588, in Wartungs_Button = Button(root, text="Wartungsfunktion", font=bigFont, fg ="black", bg="#D3d3d3", command=lambda: newWindow_Wartung_PW()) File "/home/pi/Desktop/Software_1.0.2/Software/Software/Hautpprogramm/Start_Seite.py", line 165, in newWindow_Wartung_PW P = subprocess.Popen(["/usr/share/applications/florence.desktop"]) File "/usr/lib/python3.7/subprocess.py", line 775, in init restore_signals, start_new_session) File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) PermissionError: [Errno 13] Permission denied: '/usr/share/applications/florence.desktop'

Answer 1

normally you should try to execute your script with sudo, but that wouldn't help here, because you're trying to run a .desktop file, that's not really a program. Try this: subprocess.Popen(["florence"])