Python测试网络延迟

def pingIp(ipaddress):
    try:
        out_bytes = subprocess.check_output(['ping',ipaddress,'-c','10','-w','10'],timeout=15)
        out_text = out_bytes.decode('utf-8')
        out_array=out_text.split('\n')
        ## 去掉空格
        out_array=[x for x in out_array if x!='']
        ## 去最后两个
        packetStr=out_array[-2]
        rttStr=out_array[-1]

        ## 获取丢包率
        searchObj = re.search( r'(100|[1-9]?\d(\.\d\d?\d?)?)%', packetStr, re.M|re.I)
        loss=searchObj.group()

        if loss == '100%' :
            return -1

        ## 获取延迟
        pattern = re.compile(r'(-?\d+\.\d+)', re.I)
        m = pattern.findall(rttStr)
        print("ip地址:"+ipaddress+",丢包率:"+loss+',平均延迟:'+m[1])

        return float(m[1])
    except subprocess.CalledProcessError as ce:
        print(ipaddress+'网络不通',ce)
        return -1
    except Exception as e:
        print('pingIp',e)
        return -1

def shend_icmp_packet(ip_address,times):
    try:
        response = os.popen('ping -c ' + str(times) + ' '+ ip_address).read()
        print(response)
        # 取出丢包率
        lost = response[response.rindex(',',0,response.index("%"))+1:response.index("%")].strip()
        #取出指定的延时字符串
        res = list(response)
        index = 0
        count = 0
        for r in res:
            count += 1
            if r == "=" :
                index = count
        response = response[index + 1:-4]

        # 取出执行的延迟
        i = 0
        j = []
        res1 = list(response)
        for r in res1:
            i += 1
            if r == "/" :
                j.append(i)

        min = response[:j[0]-1]
        avg = response[j[0]:j[1]-1]
        max = response[j[1]:j[2]-1]
        return min,avg,max,lost
    except Exception as e:
        print("ping exec error",e)