Deque uses "len" instead of varhead in Py2.7

diff --git a/Modules/_collectionsmodule.c b/Modules/_collectionsmodule.c
index c5690ef09ef815a4e2d382f3da06c23b0f7dbd04..b41c5def4a7519e7fdd8d698733e2cd1f7cd5b0d 100644 (file)
--- a/Modules/_collectionsmodule.c
+++ b/Modules/_collectionsmodule.c
@@ -651,7 +651,7 @@ deque_clear(dequeobject *deque)
     Py_ssize_t n;
     PyObject *item;
 
-    if (Py_SIZE(deque) == 0)
+    if (deque->len == 0)
         return;
 
     /* During the process of clearing a deque, decrefs can cause the