Fixed flake8 warnings.

django/db/backends/postgresql_psycopg2/introspection.py

@@ -39,7 +39,7 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
             WHERE c.relkind IN ('r', 'v')
                 AND n.nspname NOT IN ('pg_catalog', 'pg_toast')
                 AND pg_catalog.pg_table_is_visible(c.oid)""")
-        return [TableInfo(row[0], {'r':'t', 'v': 'v'}.get(row[1]))
+        return [TableInfo(row[0], {'r': 't', 'v': 'v'}.get(row[1]))
                 for row in cursor.fetchall()
                 if row[0] not in self.ignored_tables]
 

tests/one_to_one/models.py

@@ -113,6 +113,7 @@ class DirectorManager(models.Manager):
     def get_queryset(self):
         return super(DirectorManager, self).get_queryset().filter(is_temp=False)
 
+
 class Director(models.Model):
     is_temp = models.BooleanField(default=False)
     school = models.OneToOneField(School)