From 07e0e06f8a255a73d181e332dd8658814eb1ca50 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Thu, 27 Dec 2012 21:38:04 +0200
Subject: Issue #16504: Catch SyntaxErrors raised by tokenizer in IDLE.

Patch by Roger Serwy.
---
 Lib/idlelib/EditorWindow.py | 2 +-
 Misc/NEWS                   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
index 48aabc8..16f63c5 100644
--- a/Lib/idlelib/EditorWindow.py
+++ b/Lib/idlelib/EditorWindow.py
@@ -1618,7 +1618,7 @@ class IndentSearcher(object):
                 tokens = _tokenize.generate_tokens(self.readline)
                 for token in tokens:
                     self.tokeneater(*token)
-            except _tokenize.TokenError:
+            except (_tokenize.TokenError, SyntaxError):
                 # since we cut off the tokenizer early, we can trigger
                 # spurious errors
                 pass
diff --git a/Misc/NEWS b/Misc/NEWS
index 08d3e36..d13a406 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -182,6 +182,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #16504: IDLE now catches SyntaxErrors raised by tokenizer. Patch by
+  Roger Serwy.
+
 - Issue #16618: Make glob.glob match consistently across strings and bytes
   regarding leading dots.  Patch by Serhiy Storchaka.
 
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