Use Python 3 instead of 3.0.
diff --git a/Doc/library/macostools.rst b/Doc/library/macostools.rst
index f2a2643..7924669 100644
--- a/Doc/library/macostools.rst
+++ b/Doc/library/macostools.rst
@@ -15,7 +15,7 @@
 
 .. note::
 
-   This module has been removed in Python 3.0.
+   This module has been removed in Python 3.