[py3] Replaced basestring by six.string_types.

1 files changed, 2 insertions, 1 deletions

diff --git a/django/db/utils.py b/django/db/utils.py
index 2b6ae2cf2e..0ce09bab70 100644
--- a/django/db/utils.py
+++ b/django/db/utils.py
@@ -4,6 +4,7 @@ from threading import local
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
 from django.utils.importlib import import_module
+from django.utils import six
 
 
 DEFAULT_DB_ALIAS = 'default'
@@ -108,7 +109,7 @@ class ConnectionRouter(object):
     def __init__(self, routers):
         self.routers = []
         for r in routers:
-            if isinstance(r, basestring):
+            if isinstance(r, six.string_types):
                 try:
                     module_name, klass_name = r.rsplit('.', 1)
                     module = import_module(module_name)