编写一个Python脚本以ping ping IP地址列表，然后返回主机上的或向上还是向上，它只是打印我的IPS

Question

我将脚本写入列表中的IP地址列表。但是，当我运行脚本时，它只是打印我的所有IP地址，但实际上并没有从我能告诉的。

任何可以告诉我我想念的东西的人，我会最感激。

#!/usr/bin/env python3

import os

ip_list = ['8.8.8.8'
'8.8.4.4'
'1.1.1.1'
'4.4.4.4']
for ip in ip_list:
    response = os.popen(f"ping {ip}").read()
    if "Received = 4" in response:
        print(f"UP {ip} Ping Successful, Host is UP!")
    else:
        print(f"DOWN {ip} Ping Unsuccessful, Host is DOWN.")

我对代码进行了以下操作，但它仍然不喜欢我正在做的事情。我正在MacOS上的bash壳中跑步。

#!/usr/bin/env python3

import subprocess

ip_list = ['8.8.8.8', '8.8.4.4', '1.1.1.1']
for ip in ip_list:
    p = subprocess.run(['ping '+ip])
    p.wait()
    if p.poll():
        print (ip+" is down")
    else:
        print (ip+" is up")

我从该代码中获得的输出在这里：

matt$ python3 Python_Ping_Public3.py
Traceback (most recent call last):
  File "/Users/matt/Desktop/Python_Ping_Public3.py", line 7, in <module>
    p = subprocess.run(['ping '+ip])
  File "/usr/local/Cellar/[email protected]/3.9.13_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py", line 505, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/local/Cellar/[email protected]/3.9.13_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/local/Cellar/[email protected]/3.9.13_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py", line 1821, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'ping 8.8.8.8'

Answer 1

考虑以下内容：

letters = ['A'
'B'
'C']
print(letters)

此打印abc，因为这三个文字之间没有逗号。

这是更有意义的：

letters = ['A',
'B',
'C']
print(letters)

Whitespace在Python中是有意义的，但是线路结尾并不能代替列表分离器，这仍然是，。

这很清楚：

#!/usr/bin/env python3

import os

ip_list = ['8.8.8.8', '8.8.4.4', '1.1.1.1', '4.4.4.4']
for ip in ip_list:
    response = os.popen(f"ping {ip}").read()
    if "Received = 4" in response:
        print(f"UP {ip} Ping Successful, Host is UP!")
    else:
        print(f"DOWN {ip} Ping Unsuccessful, Host is DOWN.")