Raise statement normalization in Lib/.
diff --git a/Lib/ConfigParser.py b/Lib/ConfigParser.py
index 28299bd..faa0930 100644
--- a/Lib/ConfigParser.py
+++ b/Lib/ConfigParser.py
@@ -344,7 +344,7 @@
     def getboolean(self, section, option):
         v = self.get(section, option)
         if v.lower() not in self._boolean_states:
-            raise ValueError, 'Not a boolean: %s' % v
+            raise ValueError('Not a boolean: %s' % v)
         return self._boolean_states[v.lower()]
 
     def optionxform(self, optionstr):