From 0079ffc0920b89e5ca3b70746c5cc91da7728ac3 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Mon, 14 Oct 2013 16:08:15 +0200
Subject: [PATCH] Closes #17154: error out gracefully on "ignore" or
 "condition" without argument.

---
 Lib/pdb.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Lib/pdb.py b/Lib/pdb.py
index b4a19e41312..80cba9d36c4 100755
--- a/Lib/pdb.py
+++ b/Lib/pdb.py
@@ -805,6 +805,8 @@ class Pdb(bdb.Bdb, cmd.Cmd):
             cond = None
         try:
             bp = self.get_bpbynumber(args[0].strip())
+        except IndexError:
+            self.error('Breakpoint number expected')
         except ValueError as err:
             self.error(err)
         else:
@@ -832,6 +834,8 @@ class Pdb(bdb.Bdb, cmd.Cmd):
             count = 0
         try:
             bp = self.get_bpbynumber(args[0].strip())
+        except IndexError:
+            self.error('Breakpoint number expected')
         except ValueError as err:
             self.error(err)
         else: