ip_list = ['192.168.1.25','172.16.1.40']
full_bin_ip = []
len_ip = 8
for address in ip_list:
    splitted_address = address.split('.')
    for octet in splitted_address:
        bin_split_ip = bin(int(octet))
        correct_bin_ip = bin_split_ip[2:]
        len_split_ip = len(correct_bin_ip)
        correct_len_ip = len_ip - len_split_ip
        if len_split_ip < 8:
            full_octet_ip = '0' * correct_len_ip + correct_bin_ip
            full_bin_ip.append(full_octet_ip)
        else:
            full_bin_ip.append(correct_bin_ip)
    full_bin_ip.append(address)
print(full_bin_ip)