process ping output in python

process_ping.py

import subprocess
import re

regex = "(?P<bytes>\d+) bytes from (?P<ip>\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}): icmp_seq=(?P<icmp>\d+) ttl=(?P<ttl>\d+) time=(?P<ms>\d+.\d+) ms"
r = re.compile(regex)
# compiling ahead of time speeds up other runs when more than one server is needed to be reached


def ping_server(ip="localhost", count=10, *args, **kwargs):
    rtn_list = []
    ping_response = subprocess.Popen(["ping", "-c{}".format(int(count)), ip], stdout=subprocess.PIPE).stdout.read()
    # technically we could find the location of ping, but that gets weird across all platforms (ie windows)
    lines = ping_response.splitlines()
    for line in lines:
        d = r.match(line)
        if d is not None:
            """
                Checking for none here greatly reduces our error handling
            """
            rtn_list.append({
                "bytes": d.group("bytes"),
                "ip": d.group("ip"),
                "icmp": d.group("icmp"),
                "ttl": d.group("ttl"),
                "ms": d.group("ms")
            })
    return rtn_list


if __name__ == "__main__":
    print(ping_server())