修复model six库引用失败

Model/models.py

@@ -2,8 +2,8 @@ from itertools import chain
 from django.contrib.auth.models import BaseUserManager, AbstractBaseUser
 from django.db import models
 from django.utils import six
-# from django.utils.encoding import python_2_unicode_compatible
-from six import python_2_unicode_compatible
+from django.utils.encoding import python_2_unicode_compatible
+# from six import python_2_unicode_compatible
 from imagekit.models import ProcessedImageField
 
 from imagekit.processors import ResizeToFill