[Python-checkins] [3.12] gh-102832: IDLE - update stackviewer open (GH-105528) (#105534)

[terryjreedy]

https://github.com/python/cpython/commit/3eccd95f56f2c360ec39a37e15ce7e9c3f134528
commit: 3eccd95f56f2c360ec39a37e15ce7e9c3f134528
branch: 3.12
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: terryjreedy <tjreedy at udel.edu>
date: 2023-06-08T22:29:24Z
summary:

[3.12] gh-102832: IDLE - update stackviewer open (GH-105528) (#105534)

gh-102832: IDLE - update stackviewer open (GH-105528)

Use 'last_exc' instead of 'last_value' in 3.12/3.
(cherry picked from commit bb3454c1a75c90da3c34c060eb23403fed3fd958)

Co-authored-by: Terry Jan Reedy <tjreedy at udel.edu>

files:
M Lib/idlelib/pyshell.py

diff --git a/Lib/idlelib/pyshell.py b/Lib/idlelib/pyshell.py
index 3141b477eff1..6028700356b1 100755
--- a/Lib/idlelib/pyshell.py
+++ b/Lib/idlelib/pyshell.py
@@ -1369,11 +1369,11 @@ def open_stack_viewer(self, event=None):  # -n mode only
 
         from idlelib.stackviewer import StackBrowser
         try:
-            StackBrowser(self.root, sys.last_value, self.flist)
+            StackBrowser(self.root, sys.last_exc, self.flist)
         except:
             messagebox.showerror("No stack trace",
                 "There is no stack trace yet.\n"
-                "(sys.last_value is not defined)",
+                "(sys.last_exc is not defined)",
                 parent=self.text)
         return None