From 6bc889aedc11cc8e0b9f57948a3d528ad2685497 Mon Sep 17 00:00:00 2001
From: Eric Snow <ericsnowcurrently@gmail.com>
Date: Tue, 3 Oct 2023 14:41:02 -0600
Subject: gh-76785: Print the Traceback from Interpreter.run() (gh-110248)

This is a temporary fix. The full fix may involve serializing the traceback in some form.
---
 Modules/_xxsubinterpretersmodule.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Modules/_xxsubinterpretersmodule.c b/Modules/_xxsubinterpretersmodule.c
index 700282e..33feae8 100644
--- a/Modules/_xxsubinterpretersmodule.c
+++ b/Modules/_xxsubinterpretersmodule.c
@@ -450,6 +450,10 @@ error:
                 "RunFailedError: script raised an uncaught exception (%s)",
                 failure);
     }
+    // XXX Instead, store the rendered traceback on sharedexc,
+    // attach it to the exception when applied,
+    // and teach PyErr_Display() to print it.
+    PyErr_Display(NULL, excval, NULL);
     Py_XDECREF(excval);
     if (errcode != ERR_ALREADY_RUNNING) {
         _PyInterpreterState_SetNotRunningMain(interp);
-- 
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