转载--python判断设备是否联网

1、最简单的方式，直接request进行网络请求

def     isConnected():
        import requests
        try:
            html = requests.get("http://www.baidu.com",timeout=2)
        except:
            return False
        return True

2、使用socket

import socket

def isNetOK(testserver):
   s=socket.socket()
   s.settimeout(3)
   try:
       status = s.connect_ex(testserver)
       if status == 0:
           s.close()
           return True
       else:
           return False
   except Exception as e:
       return False

def isNetChainOK(testserver=('www.baidu.com',443)):
   isOK = isNetOK(testserver)
   return isOK


def isNetUSAOK(testserver=('www.google.com',443)):
   isOK = isNetOK(testserver)
   return isOK

def isNetYouTubeOK(testserver=('www.youtube.com',443)):
   isOK = isNetOK(testserver)
   return isOK

def main():

   chinanet = isNetChainOK()
   print chinanet
   usanet = isNetUSAOK()
   print usanet
   youtubenet = isNetYouTubeOK()
   print youtubenet

注：转载来自

blog.csdn.net/fengmm521/a…