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-rw-r--r--Modules/newmodule.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/Modules/newmodule.c b/Modules/newmodule.c
index cfe7883..52328a9 100644
--- a/Modules/newmodule.c
+++ b/Modules/newmodule.c
@@ -71,11 +71,23 @@ new_instancemethod(unused, args)
PyObject* self;
PyObject* classObj;
- if (!PyArg_ParseTuple(args, "O!O!O!",
- &PyFunction_Type, &func,
- &PyInstance_Type, &self,
+ if (!PyArg_ParseTuple(args, "OOO!",
+ &func,
+ &self,
&PyClass_Type, &classObj))
return NULL;
+ if (!PyCallable_Check(func)) {
+ PyErr_SetString(PyExc_TypeError,
+ "first argument must be callable");
+ return NULL;
+ }
+ if (self == Py_None)
+ self = NULL;
+ else if (!PyInstance_Check(self)) {
+ PyErr_SetString(PyExc_TypeError,
+ "second argument must be instance or None");
+ return NULL;
+ }
return PyMethod_New(func, self, classObj);
}