diff options
| -rw-r--r-- | pyramid/request.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/pyramid/request.py b/pyramid/request.py index 6318049ee..7e8b8c07d 100644 --- a/pyramid/request.py +++ b/pyramid/request.py @@ -72,7 +72,7 @@ class CallbackMethodsMixin(object): """ callbacks = self.response_callbacks - if not callbacks: + if callbacks == (): callbacks = [] callbacks.append(callback) self.response_callbacks = callbacks @@ -132,7 +132,7 @@ class CallbackMethodsMixin(object): """ callbacks = self.finished_callbacks - if not callbacks: + if callbacks == (): callbacks = [] callbacks.append(callback) self.finished_callbacks = callbacks |