diff -r fd53f083768c Doc/faq/programming.rst
--- a/Doc/faq/programming.rst	Sat Mar 08 21:40:29 2014 -0500
+++ b/Doc/faq/programming.rst	Wed Mar 12 22:37:51 2014 +0100
@@ -1601,6 +1601,33 @@
 13891296
 
 
+.. _faq-int-type:
+
+Syntax error while looking up an attribute on an integer literal
+----------------------------------------------------------------
+
+You get a syntax error when trying to look for an attribute on 
+``int`` value as follows.
+
+    >>> 5.__class__
+    File "<stdin>", line 1
+    5.__class__
+              ^
+    SyntaxError: invalid syntax
+
+This is because  the Python parser considers that a period written after 
+a number literal is a decimal point, so to turn that period into an attribute 
+access you have to add either a parentheses or a space around the literal. 
+In the above case, the tokenizer sees the '.' as making the token a float, 
+and ``5.__class__`` is not a valid float token.
+
+To look up an attribute on an integer literal, separate the literal from 
+the period with either a space or parentheses.
+
+    >>> (5).__class__
+    <type 'int'>
+
+
 Modules
 =======
 
diff -r fd53f083768c Doc/tutorial/classes.rst
--- a/Doc/tutorial/classes.rst	Sat Mar 08 21:40:29 2014 -0500
+++ b/Doc/tutorial/classes.rst	Wed Mar 12 22:37:51 2014 +0100
@@ -470,6 +470,7 @@
 
 Each value is an object, and therefore has a *class* (also called its *type*).
 It is stored as ``object.__class__``.
+See also :ref: `faq-int-type`
 
 
 .. _tut-inheritance: