From 1688c770fa28ce30b6bfd6bc3ec1d602985c66f0 Mon Sep 17 00:00:00 2001
From: "Adam D. Thomas" <adamt@diversityarrays.com>
Date: Tue, 4 Feb 2025 19:03:05 +1100
Subject: [PATCH 1/2] Add fix and tests

---
 Lib/test/test_traceback.py | 26 ++++++++++++++++++++++++++
 Lib/traceback.py           | 37 ++++++++++++++++++++-----------------
 2 files changed, 46 insertions(+), 17 deletions(-)

diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index 89980ae6f8573a..1926ecc7443aa6 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -4514,6 +4514,32 @@ def func():
         actual = self.get_suggestion(func)
         self.assertIn("forget to import '_io'", actual)
 
+    def test_name_error_with_bad_getattr(self):
+        class A:
+            def __getattr__(self, x):
+                spam
+
+        actual = self.get_suggestion(A(), "eggs")
+        self.assertIn("name 'spam' is not defined", actual)
+
+    def test_name_error_with_bad_getattribute(self):
+
+        class A:
+            def __getattribute__(self, x):
+                spam
+
+        actual = self.get_suggestion(A(), "eggs")
+        self.assertIn("name 'spam' is not defined", actual)
+
+    def test_name_error_with_bad_property(self):
+        class A:
+            @property
+            def eggs(self):
+                eggs
+
+        actual = self.get_suggestion(A(), "eggs")
+        self.assertIn("name 'eggs' is not defined", actual)
+
 
 
 class PurePythonSuggestionFormattingTests(
diff --git a/Lib/traceback.py b/Lib/traceback.py
index 31c73efcef5a52..28cbf1dd88c6e4 100644
--- a/Lib/traceback.py
+++ b/Lib/traceback.py
@@ -1504,24 +1504,27 @@ def _compute_suggestion_error(exc_value, tb, wrong_name):
             return None
     else:
         assert isinstance(exc_value, NameError)
-        # find most recent frame
-        if tb is None:
+        try:
+            # find most recent frame
+            if tb is None:
+                return None
+            while tb.tb_next is not None:
+                tb = tb.tb_next
+            frame = tb.tb_frame
+            d = (
+                list(frame.f_locals)
+                + list(frame.f_globals)
+                + list(frame.f_builtins)
+            )
+
+            # Check first if we are in a method and the instance
+            # has the wrong name as attribute
+            if 'self' in frame.f_locals:
+                self = frame.f_locals['self']
+                if hasattr(self, wrong_name):
+                    return f"self.{wrong_name}"
+        except Exception:
             return None
-        while tb.tb_next is not None:
-            tb = tb.tb_next
-        frame = tb.tb_frame
-        d = (
-            list(frame.f_locals)
-            + list(frame.f_globals)
-            + list(frame.f_builtins)
-        )
-
-        # Check first if we are in a method and the instance
-        # has the wrong name as attribute
-        if 'self' in frame.f_locals:
-            self = frame.f_locals['self']
-            if hasattr(self, wrong_name):
-                return f"self.{wrong_name}"
 
     try:
         import _suggestions

From a50ace5a2c2b0c49283de1148a2dda3aeee8f747 Mon Sep 17 00:00:00 2001
From: "blurb-it[bot]" <43283697+blurb-it[bot]@users.noreply.github.com>
Date: Tue, 4 Feb 2025 09:01:07 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9C=F0=9F=A4=96=20Added=20by=20blu?=
 =?UTF-8?q?rb=5Fit.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../next/Library/2025-02-04-09-01-06.gh-issue-129605.wKGNXQ.rst  | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/Library/2025-02-04-09-01-06.gh-issue-129605.wKGNXQ.rst

diff --git a/Misc/NEWS.d/next/Library/2025-02-04-09-01-06.gh-issue-129605.wKGNXQ.rst b/Misc/NEWS.d/next/Library/2025-02-04-09-01-06.gh-issue-129605.wKGNXQ.rst
new file mode 100644
index 00000000000000..9dcf05913870b9
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-02-04-09-01-06.gh-issue-129605.wKGNXQ.rst
@@ -0,0 +1 @@
+Improve exception handling when computing suggestions in traceback.py. This fixes a bug that could cause PyREPL to exit unexpectedly.