Python获取命令执行结果

import os, re

# execute command, and return the output
def execCmd(cmd):
r = os.popen(cmd)
text = r.read()
r.close()
return text

# write "data" to file-filename
def writeFile(filename, data):
f = open(filename, "w")
f.write(data)
f.close()

# 获取计算机MAC地址和IP地址
if __name__ == '__main__':
cmd = "ipconfig /all"
result = execCmd(cmd)
pat1 = "Physical Address[\. ]+: ([\w-]+)"
pat2 = "IPv4 Address[\. ]+: ([\.\d]+)"
MAC = re.findall(pat1, result)[0] # 找到MAC
IP = re.findall(pat2, result)[0] # 找到IP
print("MAC=%s, IP=%s" %(MAC, IP))