[Python-Dev] [Python-checkins] cpython (2.7): Backport early-out 91259f061cfb to reduce the cost of bb1a2944bcb6

[Raymond Hettinger]

> On Nov 11, 2015, at 10:50 PM, Benjamin Peterson <benjamin at python.org> wrote:
> 
>> +    if (Py_SIZE(deque) == 0)
>> +        return;
>> +
> 
> dequeue is not varsized in Python 2.7, so using Py_SIZE() is incorrect.

Fixed in a2a518b6ded4.

-    if (Py_SIZE(deque) == 0)
+    if (deque->len == 0)


Raymond