diff --git a/README.md b/README.md
deleted file mode 100644
index 2fd27048..00000000
--- a/README.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# fastNLP
-
-[![Build Status](https://travis-ci.org/fastnlp/fastNLP.svg?branch=master)](https://travis-ci.org/fastnlp/fastNLP)
-[![codecov](https://codecov.io/gh/fastnlp/fastNLP/branch/master/graph/badge.svg)](https://codecov.io/gh/fastnlp/fastNLP)
-[![Pypi](https://img.shields.io/pypi/v/fastNLP.svg)](https://pypi.org/project/fastNLP)
-![Hex.pm](https://img.shields.io/hexpm/l/plug.svg)
-[![Documentation Status](https://readthedocs.org/projects/fastnlp/badge/?version=latest)](http://fastnlp.readthedocs.io/?badge=latest)
-
-dev0.8.0正在开发中
\ No newline at end of file
diff --git a/tests/core/metrics/test_span_f1_rec_acc_torch.py b/tests/core/metrics/test_span_f1_rec_acc_torch.py
index 5908663a..bc711a54 100644
--- a/tests/core/metrics/test_span_f1_rec_acc_torch.py
+++ b/tests/core/metrics/test_span_f1_rec_acc_torch.py
@@ -1,5 +1,5 @@
 import pytest
-import unittest
+
 from collections import Counter
 import os, sys
 import copy