# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1330381070 -3600
# Node ID 43d594f9c4367c107ee5cabe6493fdfe662364ee
# Parent  bb3d52ea822641cc0c35f8605d03d6e928d8d0b5
Fixed the truth value for None.

diff -r bb3d52ea8226 -r 43d594f9c436 lib/builtins.py
--- a/lib/builtins.py	Mon Feb 27 21:51:46 2012 +0100
+++ b/lib/builtins.py	Mon Feb 27 23:17:50 2012 +0100
@@ -544,7 +544,12 @@
 # Various types.
 
 #class ellipsis: pass
-class NoneType: pass
+
+class NoneType:
+    def __bool__(self):
+        "None is always false."
+        return False
+
 class NotImplementedType: pass
 
 # General functions.