Opening and closing Mac applications and files

[bowlofred]

If you want to launch an app and wait for the user to exit, you could use /usr/bin/open and subprocess.run. If you want to continue the program after launching, could use subprocess.Popen.

>>> import subprocess
>>> subprocess.run(["/usr/bin/open", "-a", "calendar"])  # waits until calendar exit
CompletedProcess(args=['/usr/bin/open', '-a', 'calendar'], returncode=0)
>>> subprocess.Popen(["/usr/bin/open", "-a", "calendar"]) # returns immediately
<subprocess.Popen object at 0x1065e3048> 

I'm not sure if there's a more direct interface that avoids /usr/bin/open.