Query Whois for each IP from file, get info about Netwrok for that IP and saves it into CSV file. Requirements: pip install ipwhois, argparse

ip_whois.py

#!/usr/bin/python
from ipwhois import IPWhois
import sys
import csv
from argparse import ArgumentParser

def whois_query_ip(ip):
    whois_nets = []
    try:
        query = IPWhois(ip)
        res = query.lookup_whois()
        for net in res['nets']:
            whois_net = {}
            try:
                whois_net['CIDR'] = net['cidr']
            except:
                pass
            try:
                whois_net['Country'] = net['country']
            except:
                pass
            try:
                whois_net['Description'] = net['description'].replace('\n', ' ')
            except:
                pass
            try:
                whois_net['Address'] = net['address'].replace('\n', ' ')
            except:
                pass
            try:
                whois_net['Name'] = net['name']
            except:
                pass
            try:
                whois_net['Range'] = net['range']
            except:
                pass
            try:
                whois_net['ASN'] = res['asn']
            except:
                pass
            try:
                whois_net['Emails'] = ' '.join(net['emails']).replace('\n', ' ')
            except:
                pass
            whois_nets.append(whois_net)
    except:
        pass
    return whois_nets

def whois_get_net(ip_list, csvwriter):
    whois_nets = []
    for ip in ip_list:
        for whois_net in whois_query_ip(ip):
            if whois_net not in whois_nets:
                whois_nets.append(whois_net)
                csvwriter.writerow(whois_net)

def main():
    parser = ArgumentParser(description='Query Whois for each IP from file, get info about Netwrok for that IP  and saves it into CSV file')
    parser.add_argument('-f', dest='source_file', help='Enter filename, containing list of IPs', metavar='FILE') 
    if len(sys.argv) == 1:
        parser.print_help()
        sys.exit(1)
    args = parser.parse_args()
    with open(args.source_file,  'r') as file, open('whois_result.csv', 'wb') as csvfile:
        csvfields = ['Description', 'Name','Address', 'ASN', 'CIDR', 'Country', 'Emails',  'Range']
        csvwriter = csv.DictWriter(csvfile, csvfields, restval='None', delimiter=';')
        csvwriter.writeheader()
        ip_list = file.readlines()
        ip_list = [ip.strip() for ip in ip_list]
        whois_get_net(ip_list, csvwriter)

if __name__ == '__main__':
    main()