New exceptions.
diff --git a/Include/errors.h b/Include/errors.h
index e40f6ce..29c23e9 100755
--- a/Include/errors.h
+++ b/Include/errors.h
@@ -41,12 +41,14 @@
 extern object *SystemError;
 extern object *KeyboardInterrupt;
 
-/* Some more planned for the future */
-
-#define IndexError		RuntimeError
-#define KeyError		RuntimeError
-#define ZeroDivisionError	RuntimeError
-#define OverflowError		RuntimeError
+/* New exceptions */
+extern object *AttributeError;
+extern object *IOError;
+extern object *ZeroDivisionError;
+extern object *IndexError;
+extern object *ValueError;
+extern object *KeyError;
+extern object *OverflowError;
 
 /* Convenience functions */
 
diff --git a/Include/pyerrors.h b/Include/pyerrors.h
index e40f6ce..29c23e9 100644
--- a/Include/pyerrors.h
+++ b/Include/pyerrors.h
@@ -41,12 +41,14 @@
 extern object *SystemError;
 extern object *KeyboardInterrupt;
 
-/* Some more planned for the future */
-
-#define IndexError		RuntimeError
-#define KeyError		RuntimeError
-#define ZeroDivisionError	RuntimeError
-#define OverflowError		RuntimeError
+/* New exceptions */
+extern object *AttributeError;
+extern object *IOError;
+extern object *ZeroDivisionError;
+extern object *IndexError;
+extern object *ValueError;
+extern object *KeyError;
+extern object *OverflowError;
 
 /* Convenience functions */