file_ips_lookup.py

import fileinput
import re
from greynoise import GreyNoise

# command usage: cat <file_ips>.txt| python3 file_ips_lookup.py

api_client = GreyNoise(api_key="")
ip_list = []

# parse file for ips
for line in fileinput.input():
    ip = re.findall( r'[0-9]+(?:\.[0-9]+){3}', line )
    if ip:
        for i in ip:
            ip_list.append(i)

# lookup ips
greynoise_results = api_client.quick(ip_list)

for i in greynoise_results:
    print("IP: {} - Noise Status: {}".format(i["ip"], i["noise"]))