From edbfcbd7ef4016b4b3c24af3ff652998a35717a3 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 27 Mar 1992 15:09:46 +0000
Subject: use settrace() intreface

---
 Lib/bdb.py | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/Lib/bdb.py b/Lib/bdb.py
index dfc41d9..a5b580b 100644
--- a/Lib/bdb.py
+++ b/Lib/bdb.py
@@ -145,8 +145,7 @@ class Bdb: # Basic Debugger
 		self.stopframe = self.botframe
 		self.returnframe = None
 		self.quitting = 1
-		sys.trace = None
-		del sys.trace
+		sys.settrace(None)
 	
 	# Derived classes and clients can call the following functions
 	# to manipulate breakpoints.  These functions return an
@@ -245,15 +244,14 @@ class Bdb: # Basic Debugger
 	
 	def runctx(self, cmd, globals, locals):
 		self.reset()
-		sys.trace = self.trace_dispatch
+		sys.settrace(self.trace_dispatch)
 		try:
 			exec(cmd + '\n', globals, locals)
 		except BdbQuit:
 			pass
 		finally:
 			self.quitting = 1
-			sys.trace = None
-			del sys.trace
+			sys.settrace(None)
 		# XXX What to do if the command finishes normally?
 
 
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