pytest_django_test/compat: do not import patterns on older Django

Author: blueyed

pytest_django_test/compat.py

@@ -1,13 +1,15 @@
+import django
+
+
 try:
     from urllib2 import urlopen, HTTPError  # noqa
 except ImportError:
     from urllib.request import urlopen, HTTPError  # noqa
 
 # Django 1.10 removes patterns, instead it is just a list
-try:
+if django.VERSION < (1, 10):
     from django.conf.urls import patterns
-except ImportError:
-
+else:
     def patterns(prefix, *urls):
         assert prefix == ""
         return urls