Issue #17114: IDLE now uses non-strict config parser.

Lib/idlelib/configHandler.py

@@ -37,7 +37,7 @@ class IdleConfParser(ConfigParser):
         cfgFile - string, fully specified configuration file name
         """
         self.file=cfgFile
-        ConfigParser.__init__(self,defaults=cfgDefaults)
+        ConfigParser.__init__(self, defaults=cfgDefaults, strict=False)
 
     def Get(self, section, option, type=None, default=None, raw=False):
         """

Misc/NEWS

@@ -163,6 +163,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #17114: IDLE now uses non-strict config parser.
+
 - Issue #16723: httplib.HTTPResponse no longer marked closed when the connection
   is automatically closed.