os.environ[t[0]] = t[1]
#os.putenv(t[0], t[1]) does not work
#see http://stackoverflow.com/questions/17705419/python-os-environ-os-putenv-usr-bin-env
os.environ[t[0]] = t[1]
#os.putenv(t[0], t[1]) does not work
#see http://stackoverflow.com/questions/17705419/python-os-environ-os-putenv-usr-bin-env