import subprocess    
import re
p = subprocess.Popen(["ping.exe", 'google.com'], 
                                         stdin = subprocess.PIPE, 
                                         stdout = subprocess.PIPE, 
                                         stderr = subprocess.PIPE, 
                                         shell = True)    

out = p.stdout.read()                                     
regex = re.compile("Minimum = (\d+)ms, Maximum = (\d+)ms, Average = (\d+)ms", re.IGNORECASE)
print regex.findall(out)
#//python/8567