import time def main(request, response): delay = float(request.GET.first("ms", 1000)) / 1E3 count = int(request.GET.first("count", 50)) time.sleep(delay) response.headers.set("Transfer-Encoding", "chunked") response.write_status_headers() time.sleep(delay); for i in xrange(count): response.writer.write_content("a\r\nTEST_CHUNK\r\n") time.sleep(delay) response.writer.write_content("garbage")