backport 2.153:

Missing DECREFs when exception is raised in sys.excepthook.

diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 76489fd13a936c9aee9721f799f9eb830525adfd..331c3d29283d80a11d0950a2a28efbbccda33710 100644 (file)
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -866,6 +866,9 @@ PyErr_PrintEx(int set_sys_last_vars)
                        PyErr_Display(exception2, v2, tb2);
                        PySys_WriteStderr("\nOriginal exception was:\n");
                        PyErr_Display(exception, v, tb);
+                       Py_XDECREF(exception2);
+                       Py_XDECREF(v2);
+                       Py_XDECREF(tb2);
                }
                Py_XDECREF(result);
                Py_XDECREF(args);