#17613: Prevent traceback when removing syntax colorizer in IDLE.
diff --git a/Lib/idlelib/ColorDelegator.py b/Lib/idlelib/ColorDelegator.py
index 0610c4b..c74865d 100644
--- a/Lib/idlelib/ColorDelegator.py
+++ b/Lib/idlelib/ColorDelegator.py
@@ -50,6 +50,10 @@
self.config_colors()
self.bind("<<toggle-auto-coloring>>", self.toggle_colorize_event)
self.notify_range("1.0", "end")
+ else:
+ # No delegate - stop any colorizing
+ self.stop_colorizing = True
+ self.allow_colorizing = False
def config_colors(self):
for tag, cnf in self.tagdefs.items():
diff --git a/Misc/NEWS b/Misc/NEWS
index abb5068..e2ed81c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -23,6 +23,8 @@
IDLE
----
+- Issue #17613: Prevent traceback when removing syntax colorizer in IDLE.
+
- Issue #1207589: Backwards-compatibility patch for right-click menu in IDLE.
- Issue #16887: IDLE now accepts Cancel in tabify/untabify dialog box.