More fixes to PostgreSQL version comparisons from r10730.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10740 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/postgresql_psycopg2/base.py

@@ -105,11 +105,11 @@ def _cursor(self):
             cursor.execute("SET TIME ZONE %s", [settings_dict['TIME_ZONE']])
             if not hasattr(self, '_version'):
                 self.__class__._version = get_version(cursor)
-            if self._version[0:2] < [8, 0]:
+            if self._version[0:2] < (8, 0):
                 # No savepoint support for earlier version of PostgreSQL.
                 self.features.uses_savepoints = False
             if self.features.uses_autocommit:
-                if self._version[0:2] < [8, 2]:
+                if self._version[0:2] < (8, 2):
                     # FIXME: Needs extra code to do reliable model insert
                     # handling, so we forbid it for now.
                     from django.core.exceptions import ImproperlyConfigured