Fix SF bug #1669182. Handle string exceptions even if unraisable (ie in __del__).
diff --git a/Python/errors.c b/Python/errors.c
index f31f025..bc77c3c 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -590,7 +590,11 @@
PyFile_WriteString("Exception ", f);
if (t) {
PyObject* moduleName;
- char* className = PyExceptionClass_Name(t);
+ char* className = NULL;
+ if (PyExceptionClass_Check(t))
+ className = PyExceptionClass_Name(t);
+ else if (PyString_Check(t))
+ className = PyString_AS_STRING(t);
if (className != NULL) {
char *dot = strrchr(className, '.');