Route

class Route:
    def __init__(self, cidr):
        self._address, mask_bits = cidr.split('/')
        mask_bits = int(mask_bits)
        self._mask = 0xffffffff & (0xffffffff << (32 - mask_bits))
        self._mask_bits = mask_bits
        self._address_number = self.number(self._address)
        self._hex_address = self._hex4(self._address_number)

    def __repr__(self):
        return f'{self._address}/{self._mask_bits}'

    def number(self, ip):
        hex_address = ''.join([f'{int(n):02x}' for n in ip.split('.')])
        return int(hex_address, 16)

    def compatible(self, ip):
        ip_number = self.number(ip)
        masked = self._hex4(ip_number & self._mask)
        return masked == self._hex_address
         
    @property
    def mask(self):
        return self._hex4(self._mask)

    def _hex4(self, number):
        return f'{number:08x}'

import IPython
IPython.embed()