Be a bit more careful with printing a warning for a failed __del__.

diff --git a/Objects/classobject.c b/Objects/classobject.c
index 57768988cd8b813ce14590ad59b5411f1d3920f2..191b5568c0e13c014ea5f452461424afb479d01d 100644 (file)
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -404,8 +404,11 @@ instance_dealloc(inst)
                object *res = call_object(del, (object *)NULL);
                DECREF(del);
                if (res == NULL) {
-                       writestring("exception in __del__ method ignored\n",
-                                   sysget("stderr"));
+                       PyObject *f = sysget("stderr");
+                       err_clear();
+                       if (f != NULL)
+                               writestring(
+                                 "exception in __del__ method ignored\n", f);
                }
                else
                        DECREF(res);