Port Georg's dictobject.c fix keys that were tuples got unpacked on the way to setting a KeyError (svn revision 52535, sf bug
1576657).
diff --git a/Objects/setobject.c b/Objects/setobject.c
index 99db926..d33fff9 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -10,6 +10,20 @@
#include "Python.h"
#include "structmember.h"
+/* Set a key error with the specified argument, wrapping it in a
+ * tuple automatically so that tuple keys are not unpacked as the
+ * exception arguments. */
+static void
+set_key_error(PyObject *arg)
+{
+ PyObject *tup;
+ tup = PyTuple_Pack(1, arg);
+ if (!tup)
+ return; /* caller will expect error to be set anyway */
+ PyErr_SetObject(PyExc_KeyError, tup);
+ Py_DECREF(tup);
+}
+
/* This must be >= 1. */
#define PERTURB_SHIFT 5
@@ -1684,7 +1698,7 @@
Py_DECREF(tmpkey);
return result;
} else if (rv == DISCARD_NOTFOUND) {
- PyErr_SetObject(PyExc_KeyError, key);
+ set_key_error(key);
return NULL;
}
Py_RETURN_NONE;