python proxy

proxy.py

#!/usr/bin/python
import json
from subprocess import Popen, PIPE

txt = raw_input();
cmd = txt.split()
o = None
e =None
try:
  p = Popen(cmd, stdout=PIPE, stderr=PIPE)
  o, e = p.communicate()
except:
  e = str(sys.exc_info()[0])

print json.dumps({"stdout": o, "stderr":e})