This adds an app to the list displayed in System Preferences -> Privacy -> Location Services. It does not enable the app there.

Add Python to Privacy--Location Services List.py

#!/usr/bin/python

import CoreLocation

CLValidAuth = [CoreLocation.kCLAuthorizationStatusAuthorized]

def locationServicesEnabled():
    if CoreLocation.CLLocationManager.locationServicesEnabled():
        return True
    else:
        return False

def appLocationAuthorized():
    status = CoreLocation.CLLocationManager.authorizationStatus()
    if status in CLValidAuth:
        return True
    else:
        return False

def requestLocation():
    if not locationServicesEnabled():
        exit("Location Services not enabled.")
    elif not appLocationAuthorized():
        locationMgr = CoreLocation.CLLocationManager.alloc().init() 
        locationMgr.requestAlwaysAuthorization()
        return "Requested permission."
    else:
        return "Already has Location authorization."
    
if __name__ == "__main__":
    print requestLocation()

From my testing, needs to be run as the logged-in user.

Also, updated to check for Location Services enable status as it has to be on? ¯_(ツ)_/¯