def finish_response(self, app_iter): if not self.scale: self.start_response(self.status, self.headers) self.output = app_iter return CONTENT_LENGTH.delete(self.headers) inBuffer = StringIO() try: for s in app_iter: self.logger.debug("Writing %d bytes into image buffer." % len(s)) inBuffer.write(s) finally: if hasattr(app_iter, 'close'): app_iter.close() rawImg = Blob() rawImg.data = inBuffer.getvalue() inBuffer.close() image = Image(rawImg) self.logger.debug("Scaling image to %s" % self.scaled_size) image.scale(self.scaled_size[0]) image.write(self.outbuffer) content_length = self.outbuffer.length() CONTENT_LENGTH.update(self.headers, content_length) CACHE_CONTROL.update(self.headers, s_maxage=CACHE_CONTROL.ONE_HOUR) self.start_response(self.status, self.headers)