small idiomatic correction

Because None-types are singletons, we should use identity, generally.
apiguy · Jan 15, 2013 · eb3fc01 · eb3fc01
1 parent b44c489
commit eb3fc01
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/flask_classy.py b/flask_classy.py
@@ -77,7 +77,7 @@ def register(cls, app, route_base=None, subdomain=None):
             cls.route_base = route_base
 
         if not subdomain:
-            if hasattr(app, "subdomain") and app.subdomain != None:
+            if hasattr(app, "subdomain") and app.subdomain is not None:
                 subdomain = app.subdomain
             elif hasattr(cls, "subdomain"):
                 subdomain = cls.subdomain