I am still getting Exception object Unbound

I tested this inside a compute function

it is working

can you provide that sample code

class Foo(models.Model):

____@api.one

____def _compute_progress(self):

________self.progress = lib.progress_by_state(self)

________from openerp.http import request

________environ = request.httprequest.headers.environ

________print environ.get("REMOTE_ADDR")

don't look first line of function

still i get excception of object unbound