python类gateways()的实例源码

def getLocalIP():
    import netifaces
    routingNicName = netifaces.gateways()['default'][netifaces.AF_INET][1]
    for interface in netifaces.interfaces():
        if interface == routingNicName:
            try:
                routingIPAddr = netifaces.ifaddresses(interface)[netifaces.AF_INET][0]['addr']
                return interface, routingIPAddr
            except KeyError:
                pass

def get_local_ip_address():
    import netifaces
    routingIPAddr = '127.0.0.1'
    for interface in netifaces.interfaces():
        if interface == netifaces.gateways()['default'][netifaces.AF_INET][1]:
            try:
                routingIPAddr = netifaces.ifaddresses(interface)[netifaces.AF_INET][0]['addr']
            except KeyError:
                pass
    return routingIPAddr

def defaultinterface():
    '''The interface the default gateway is on, if there is one.'''
    try:
        return netifaces.gateways()['default'][netifaces.AF_INET][1]
    except:
        return None