Clamp code objects' tp_compare result to [-1, 1].
Bugfix candidate.
diff --git a/Python/compile.c b/Python/compile.c
index 26c56f4..d916751 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -196,11 +196,11 @@
cmp = PyObject_Compare(co->co_name, cp->co_name);
if (cmp) return cmp;
cmp = co->co_argcount - cp->co_argcount;
- if (cmp) return cmp;
+ if (cmp) return (cmp<0)?-1:1;
cmp = co->co_nlocals - cp->co_nlocals;
- if (cmp) return cmp;
+ if (cmp) return (cmp<0)?-1:1;
cmp = co->co_flags - cp->co_flags;
- if (cmp) return cmp;
+ if (cmp) return (cmp<0)?-1:1;
cmp = PyObject_Compare(co->co_code, cp->co_code);
if (cmp) return cmp;
cmp = PyObject_Compare(co->co_consts, cp->co_consts);