If you're implementing this as a feature in a larger application, consider:
: A new window typically opens showing the contents. You can then drag and drop the files to your Applications folder or any other location on your Mac.
: On macOS, you can use command-line tools like hdiutil to work with disk images, including .dmg files.
Here's a basic example using Python on macOS. This script will attempt to attach (mount) a .dmg file and then detach (unmount) it. Note that handling the contents of the .dmg file (like copying it to a specific location) would require additional steps.
To unpack a .dmg (Apple Disk Image) file, the method depends on whether you are using a Mac or a Windows PC.
import subprocess import os
