解析ping命令输出

Question

我想使用Python在Windows下解析ping命令的输出。特别是最小，最大和平均RTT。

我有以下代码：

from sys import platform
import re

if platform == "linux" or platform == "darwin":
    command=["ping", "-c", "3", "-i", "0.2", IP]
    timeout=0.5
else:
    command=["ping", "-n", "1", IP]
    timeout=0.2  proc=subprocess.Popen(command,stdout=subprocess.PIPE,stderr=subprocess.PIPE)
try:
    [out, err]=proc.communicate(timeout=timeout)
    if proc.returncode == 0:
        if platform == "linux" or platform == "darwin":
            # rtt min/avg/max/mdev = 578.263/917.875/1013.707/132.095 ms
            avgRTT=re.search("rtt min/avg/max/mdev = (\d+.\d+)/(\d+.\d+)/(\d+.\d+)/(\d+.\d+)", str(out)).group(2)
        else:
            # Approximate round trip times in milli-seconds: Minimum = 63ms, Maximum = 64ms, Average = 63ms
            avgRTT=re.search("Minimum = (\d+), Maximum = (\d+), Average = (\d+)", str(out))
            print(avgRTT.group())
except subprocess.TimeoutExpired:
    proc.kill()

它在GNU / linux和mac os X下运行良好，而在Windows下则不运行。我也尝试使用信息here，但没有成功。

Answer 1

我已经采用了您的代码，只是做了一些小改动。 ms的正则表达式中缺少windows，而只需要添加一些包含和空格（可能部分是由于StackOverflow格式所致）。现在，它可以在我的windows 7.0框中运行了。您应该只能够复制/粘贴/按一下就可以得到想要的结果：）

from sys import platform
import subprocess
import re

IP = "127.0.0.1"

if platform == "linux" or platform == "darwin":
    command=["ping", "-c", "3", "-i", "0.2", IP]
    timeout=0.5
else:
    command=["ping", "-n", "1", IP]
    timeout=0.2
    proc=subprocess.Popen(command,stdout=subprocess.PIPE,stderr=subprocess.PIPE)

try:
    [out, err]=proc.communicate(timeout=timeout)
    if proc.returncode == 0:
        if platform == "linux" or platform == "darwin":
            # rtt min/avg/max/mdev = 578.263/917.875/1013.707/132.095 ms
            avgRTT=re.search("rtt min/avg/max/mdev = (\d+.\d+)/(\d+.\d+)/(\d+.\d+)/(\d+.\d+)", str(out)).group(2)
        else:
            # Approximate round trip times in milli-seconds: Minimum = 63ms, Maximum = 64ms, Average = 63ms
            avgRTT=re.search("Minimum = (\d+)ms, Maximum = (\d+)ms, Average = (\d+)", str(out))
            print(avgRTT.group())
except subprocess.TimeoutExpired:
    proc.kill()

输出：