获取本机ip

import socket
import struct
import fcntl

def get_ip(iface='eth0'):
    """
    Use Linux SIOCGIFADDR ioctl to get the IP for the interface.
    ref http://code.activestate.com/recipes/439094-get-the-ip-address\
        -associated-with-a-network-inter/
    """
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    return socket.inet_ntoa(fcntl.ioctl(
        sock.fileno(),
        0x8915, # SIOCGIFADDR
        struct.pack('256s', iface[:15])
    )[20:24])


print get_ip("enp3s0")

主机名： hostname = socket.gethostname()