def _prefix_from_ip_int(self, ip_int, mask=32):
        while mask:
            if ip_int & 1 == 1:
                break
            ip_int >>= 1
            mask -= 1

        return mask
returns parsed host from ``source_address``
dataset/ETHPy150Open anandology/pyjamas/pyjs/src/pyjs/lib/ipaddr.py/_BaseNet._prefix_from_ip_int--crossover with--dataset/ETHPy150Open django-leonardo/django-leonardo/leonardo/module/web/widgets/mixins.py/ContentProxyWidgetMixin.get_host