import sys


def application(environ, start_response):
    cuerpo = "vivo | python {0} | {1}".format(sys.version, sys.executable).encode("utf-8")
    start_response("200 OK", [("Content-Type", "text/plain; charset=utf-8"),
                              ("Content-Length", str(len(cuerpo)))])
    return [cuerpo]