main.py

import os, sys, shutil

env = {}

env["AAA"] = "111"

os.environ.update(env)

print os.environ["AAA"] # ok, updated successful

files = os.popen3(sys.argv[1], "b")

fi, fo, fe = files[0], files[1], files[2]

shutil.copyfileobj(fo, sys.stdout)

errors = fe.read()

fe.close()

if errors: print errors

sts = fo.close()

if sts:

   print "exit %#x" % sts

else:

   print "exit ok"



test.py

import os, sys



if os.environ.has_key["AAA"]:

   print "ok, got AAA"

else:

   print "failure"