try:
    if feedback_local_safety.take() ==False:
        magnet_release_state = magnet_release.read()
        if former_magnet_release_state != magnet_release_state:
            if magnet_release_state:   
                print "Pressed release button" 
                smart_magnet.set_resting_current()
                smart_magnet_changed = True
            else:
                print "Released release button" 
                smart_magnet.set_default_current()
                smart_magnet_changed = False
        former_magnet_release_state = magnet_release_state
    
    else:
        if smart_magnet_changed:
            smart_magnet.set_default_current()
        smart_magnet_changed = False
        former_magnet_release_state = False

except:
    former_magnet_release_state = False
    smart_magnet_changed = False