sites = Site.objects.all()
sites = [x for x in sites if x.name in available_sites]
sites = sorted(sites, key=functools.partial(siteSortKey, slice=slice, count=count, lat=lat, lon=lon))
sites = Site.objects.all()
sites = [x for x in sites if x.name in available_sites]
sites = sorted(sites, key=functools.partial(siteSortKey, slice=slice, count=count, lat=lat, lon=lon))