empty kw dict is ok for builtins
diff --git a/Python/ceval.c b/Python/ceval.c
index a0431aa..d725d35 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2281,6 +2281,11 @@
else
INCREF(arg);
+ if (kw != NULL && !is_dictobject(kw)) {
+ err_setstr(TypeError, "keyword list must be a dictionary");
+ return NULL;
+ }
+
if (call = func->ob_type->tp_call)
result = (*call)(func, arg, kw);
else if (is_instancemethodobject(func) || is_funcobject(func))
@@ -2316,7 +2321,7 @@
}
if (flags & METH_KEYWORDS)
return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
- if (kw != NULL) {
+ if (kw != NULL && getmappingsize(kw) != 0) {
err_setstr(TypeError,
"this function takes no keyword arguments");
return NULL;