diff --git a/duibiao/calsim.py b/duibiao/calsim.py
index 09b15b95..f71b96bb 100644
--- a/duibiao/calsim.py
+++ b/duibiao/calsim.py
@@ -4,7 +4,7 @@ import pickle
 import warnings
 warnings.filterwarnings(action='ignore', category=UserWarning, module='gensim')
 from gensim import corpora, models, similarities
-from gensim.summarization import bm25
+# from gensim.summarization import bm25
 import os
 from django.conf import settings 
 
diff --git a/safesite/models.py b/safesite/models.py
index e5ca6246..a13a2d17 100644
--- a/safesite/models.py
+++ b/safesite/models.py
@@ -138,7 +138,7 @@ class User(models.Model):
             }
         }, 'safeyun', algorithm='HS256')
 
-        return token.decode('utf-8')
+        return token
 
 
 class Userprofile(models.Model):