在Python中,是否有一种方法可以通过ICMP来ping服务器,如果服务器响应则返回TRUE,如果没有响应则返回FALSE ?


当前回答

import os #to get clear screen
import subprocess as sp #to get system ping
os.system("clear") #clear screen
print('Wait or Press Ctrl+Z to Terminate\n') #notice to terminate or wait
for i in range(255): #0 to 255 loop
    ip='192.168.1.'+str(i) #concatenating str and int
    s,r=sp.getstatusoutput("ping -c1 -w2 " + ip) #ping and store status in s
    if s==0: #if status is 0 equal to pass
        print(ip+" is UP ✓ ") #output
    else: #if status is not 0 equal to fail
        pass #skip and try next ip from loop

其他回答

#!/usr/bin/python3

import subprocess as sp

ip = "192.168.122.60"
status,result = sp.getstatusoutput("ping -c1 -w2 " + ip)

if status == 0: 
    print("System " + ip + " is UP !")
else:
    print("System " + ip + " is DOWN !")

使用这个,它在python 2.7上测试过,工作很好,如果成功,它返回以毫秒为单位的ping时间,失败时返回False。

import platform,subproccess,re
def Ping(hostname,timeout):
    if platform.system() == "Windows":
        command="ping "+hostname+" -n 1 -w "+str(timeout*1000)
    else:
        command="ping -i "+str(timeout)+" -c 1 " + hostname
    proccess = subprocess.Popen(command, stdout=subprocess.PIPE)
    matches=re.match('.*time=([0-9]+)ms.*', proccess.stdout.read(),re.DOTALL)
    if matches:
        return matches.group(1)
    else: 
        return False

下面是一个使用Python的子进程模块和底层操作系统提供的ping CLI工具的解决方案。在Windows和Linux上测试。支持设置网络超时。不需要根权限(至少在Windows和Linux上)。

import platform
import subprocess

def ping(host, network_timeout=3):
    """Send a ping packet to the specified host, using the system "ping" command."""
    args = [
        'ping'
    ]

    platform_os = platform.system().lower()

    if platform_os == 'windows':
        args.extend(['-n', '1'])
        args.extend(['-w', str(network_timeout * 1000)])
    elif platform_os in ('linux', 'darwin'):
        args.extend(['-c', '1'])
        args.extend(['-W', str(network_timeout)])
    else:
        raise NotImplemented('Unsupported OS: {}'.format(platform_os))

    args.append(host)

    try:
        if platform_os == 'windows':
            output = subprocess.run(args, check=True, universal_newlines=True).stdout

            if output and 'TTL' not in output:
                return False
        else:
            subprocess.run(args, check=True)

        return True
    except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
        return False

我有类似的要求,所以我实现它如下所示。它在Windows 64位和Linux上进行了测试。

import subprocess
def systemCommand(Command):
    Output = ""
    Error = ""     
    try:
        Output = subprocess.check_output(Command,stderr = subprocess.STDOUT,shell='True')
    except subprocess.CalledProcessError as e:
        #Invalid command raises this exception
        Error =  e.output 

    if Output:
        Stdout = Output.split("\n")
    else:
        Stdout = []
    if Error:
        Stderr = Error.split("\n")
    else:
        Stderr = []

    return (Stdout,Stderr)

#in main
Host = "ip to ping"
NoOfPackets = 2
Timeout = 5000 #in milliseconds
#Command for windows
Command = 'ping -n {0} -w {1} {2}'.format(NoOfPackets,Timeout,Host)
#Command for linux 
#Command = 'ping -c {0} -w {1} {2}'.format(NoOfPackets,Timeout,Host)
Stdout,Stderr = systemCommand(Command)
if Stdout:
   print("Host [{}] is reachable.".format(Host))
else:
   print("Host [{}] is unreachable.".format(Host))

当IP不可达时,subprocess.check_output()将引发异常。额外的验证可以通过从输出行“Packets: Sent = 2, Received = 2, Lost = 0 (0% loss)”中提取信息来完成。

我借鉴了其他答案。尝试简化和最小化查询。

import platform, os

def ping(host):
    result = os.popen(' '.join(("ping", ping.param, host))).read()
    return 'ttl=' in result.lower()

ping.param = "-n 1" if platform.system().lower() == "windows" else "-c 1"

编辑:根据奥利维尔B的评论,忽略返回的大小写。