diff -r 3636ffddb00c Objects/longobject.c
--- a/Objects/longobject.c	Sat Sep 24 09:32:10 2016 -0700
+++ b/Objects/longobject.c	Sun Sep 25 15:08:16 2016 +0300
@@ -56,7 +56,8 @@
 static PyLongObject *
 maybe_small_long(PyLongObject *v)
 {
-    if (v && Py_ABS(Py_SIZE(v)) <= 1) {
+    assert(v != NULL);
+    if (Py_ABS(Py_SIZE(v)) <= 1) {
         sdigit ival = MEDIUM_VALUE(v);
         if (-NSMALLNEGINTS <= ival && ival < NSMALLPOSINTS) {
             Py_DECREF(v);