Removed os.system from the main route, which removes a command injection. Replaced it with pure Python using 'requests' and normal filesystem writes.
Removed os.system from the main route, which removes a command injection. Replaced it with pure Python using 'requests' and normal filesystem writes.

luoyetx/deep-landmark,luoyetx/deep-landmark,luoyetx/deep-landmark,luoyetx/deep-landmark