From d23b766be46990e6015d6e821cfb293eb52b9528 Mon Sep 17 00:00:00 2001
From: tdashelby-cmyk <253610080+tdashelby-cmyk@users.noreply.github.com>
Date: Mon, 11 May 2026 16:42:57 +0200
Subject: [PATCH] Accept singular pdb exception command

---
 IPython/core/debugger.py |  6 ++++++
 tests/test_debugger.py   | 13 +++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/IPython/core/debugger.py b/IPython/core/debugger.py
index 4afd86427de..b35a2cd345e 100644
--- a/IPython/core/debugger.py
+++ b/IPython/core/debugger.py
@@ -515,6 +515,12 @@ def do_exceptions(self, arg):
                 else:
                     self.error("No exception with that number")
 
+        def do_exception(self, arg):
+            """exception [number]
+            Alias for the ``exceptions`` command.
+            """
+            return self.do_exceptions(arg)
+
     def interaction(self, frame, tb_or_exc):
         try:
             if CHAIN_EXCEPTIONS:
diff --git a/tests/test_debugger.py b/tests/test_debugger.py
index acfabe76060..ecc2f17e3c4 100644
--- a/tests/test_debugger.py
+++ b/tests/test_debugger.py
@@ -279,6 +279,19 @@ def raising_input(msg="", called=[0]):
         sys.settrace(tracer_orig)
 
 
+@pytest.mark.skipif(
+    not debugger.CHAIN_EXCEPTIONS,
+    reason="chained exception navigation is not available",
+)
+def test_exception_command_aliases_exceptions():
+    ipdb = debugger.Pdb()
+
+    with patch.object(ipdb, "do_exceptions", return_value=True) as do_exceptions:
+        assert ipdb.onecmd("exception 0") is True
+
+    do_exceptions.assert_called_once_with("0")
+
+
 @skip_win32
 def test_xmode_skip():
     """that xmode skip frames