Closes #17154: error out gracefully on "ignore" or "condition" without argument.

1 files changed, 4 insertions, 0 deletions

diff --git a/Lib/pdb.py b/Lib/pdb.py
index b4a19e4131..80cba9d36c 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: