4fa379419d9700fb179a9d3440f4e618d8fe50ec,homeassistant/components/media_player/sonos.py,,setup_platform,#Any#Any#Any#Any#,36

Before Change

     Sets up the Sonos platform. 

    import soco
    add_devices(SonosDevice(hass, p) for p in soco.discover())

    return True

After Change

    import soco

    players = soco.discover()
    if not players:
        _LOGGER.warning("No Sonos speakers found. Disabling: " + __name__)
        return False

Instances