From 05ceab495c4390c0e3af5ae6458d4c808eb08e67 Mon Sep 17 00:00:00 2001 From: Dobes Vandermeer Date: Tue, 29 Jul 2014 17:54:23 -0700 Subject: Use None for the default value of the callbacks list. --- pyramid/request.py | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/pyramid/request.py b/pyramid/request.py index 7e8b8c07d..fa35dc5f4 100644 --- a/pyramid/request.py +++ b/pyramid/request.py @@ -32,8 +32,8 @@ class TemplateContext(object): pass class CallbackMethodsMixin(object): - response_callbacks = () - finished_callbacks = () + response_callbacks = None + finished_callbacks = None def add_response_callback(self, callback): """ Add a callback to the set of callbacks to be called by the @@ -72,7 +72,7 @@ class CallbackMethodsMixin(object): """ callbacks = self.response_callbacks - if callbacks == (): + if callbacks is None: callbacks = [] callbacks.append(callback) self.response_callbacks = callbacks @@ -132,7 +132,7 @@ class CallbackMethodsMixin(object): """ callbacks = self.finished_callbacks - if callbacks == (): + if callbacks is None: callbacks = [] callbacks.append(callback) self.finished_callbacks = callbacks -- cgit v1.2.3