import re
hosts = ("Hostname#traceroute 10.0.0.1\n\n"
"Type escape sequence to abort.\n"
"Tracing the route to 10.0.0.1\n\n"
" 1 10.0.0.2 0 msec 6 msec 0 msec\n"
"11 10.0.0.3 115 msec\n"
" 10.0.0.4 115 msec 116 msec")
ip = re.findall(r"^[ \t]*(?:\d*[ \t]* )?\d+\.\d+\.\d+\.\d+.*", hosts, re.M)
print(ip)
aW1wb3J0IHJlCgoKaG9zdHMgPSAoIkhvc3RuYW1lI3RyYWNlcm91dGUgMTAuMC4wLjFcblxuIgoJIlR5cGUgZXNjYXBlIHNlcXVlbmNlIHRvIGFib3J0LlxuIgoJIlRyYWNpbmcgdGhlIHJvdXRlIHRvIDEwLjAuMC4xXG5cbiIKCSIgMSAxMC4wLjAuMiAwIG1zZWMgNiBtc2VjIDAgbXNlY1xuIgoJIjExIDEwLjAuMC4zIDExNSBtc2VjXG4iCgkiICAgMTAuMC4wLjQgMTE1IG1zZWMgMTE2IG1zZWMiKQoKaXAgPSByZS5maW5kYWxsKHIiXlsgXHRdKig/OlxkKlsgXHRdKiApP1xkK1wuXGQrXC5cZCtcLlxkKy4qIiwgaG9zdHMsIHJlLk0pCnByaW50KGlwKQ==