Linux下Python调用Ping命令

目标：ping -c 10000 -i 0.01 -s 50 8.8.8.8 输出第10%快的时间

# -*- coding: utf-8 -*-
import subprocess
import re

# 数组存储返回结果
ping_results = []

def get_ping_result(count, interval, size, ip):

    # 构造ping命令
    command = 'ping -c %s' % count + " -i %s" % interval + " -s %s" % size + " %s" % ip 
    p = subprocess.Popen([command], 
        stdin = subprocess.PIPE, 
        stdout = subprocess.PIPE, 
        stderr = subprocess.PIPE, shell = True)
    
    out = p.stdout.read().decode('utf-8')

    #提取返回值
    regex = r'time=(.+?)ms'
    ping_results = re.findall(regex, out)
    
    #排序
    ping_results.sort()

    #检查下标
    index = int(0.1*int(count))
    if len(ping_results) == 0:
        print("Error! No data!")
    elif len(ping_results) < index :
        print("Error! Index out of range!")
    else:
        print(ping_results[index])

if __name__ == '__main__':
    get_ping_result('10000', '0.01', '50', '8.8.8.8')