Moved frames_iterator scope

        self.stream = FrameStream()

        # Iterator function that yields new frames as they are acquired

        self.frames_iterator = None

        self.frame = None

        self.last_access = 0

        self.event = ClientEvent()

    def _thread(self):

        """Camera background thread."""

        # Set the camera object's frame iterator

        self.frames_iterator = self.frames()

        frames_iterator = self.frames()

        logging.debug("Entering worker thread.")

        self.stream_active = True

        for frame in self.frames_iterator:

        for frame in frames_iterator:

            # Store most recent frame

            self.frame = frame

            # Signal to clients that a new frame is available

            try:

                if self.stop is True:

                    logging.debug("Worker thread flagged for stop.")

                    self.frames_iterator.close()

                    frames_iterator.close()

                    break

            except AttributeError: