def _safe_read(self, amt):
        s = []
        while amt > 0:
            chunk = self.fp.read(min(amt, MAXAMOUNT))
            if not chunk:
                raise IncompleteRead(s)
            s.append(chunk)
            amt -= len(chunk)
        return ''.join(s)
Deletes the specified policy document for the specified user.
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/httplib.py/HTTPResponse._safe_read--crossover with--dataset/ETHPy150Open darcyliu/storyboard/boto/iam/connection.py/IAMConnection.delete_user_policy