Remove trailing whitespace.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 3200ed8..57fd63b 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1152,7 +1152,7 @@
    implementing :meth:`__format__`, however most classes will either
    delegate formatting to one of the built-in types, or use a similar
    formatting option syntax.
-   
+
    See :ref:`formatspec` for a description of the standard formatting syntax.
 
    The return value must be a string object.
diff --git a/Doc/reference/expressions.rst b/Doc/reference/expressions.rst
index 52299be..100d81c 100644
--- a/Doc/reference/expressions.rst
+++ b/Doc/reference/expressions.rst
@@ -552,7 +552,7 @@
 :keyword:`del` statements.  The syntax for a slicing:
 
 .. productionlist::
-   slicing: `primary` "[" `slice_list` "]" 
+   slicing: `primary` "[" `slice_list` "]"
    slice_list: `slice_item` ("," `slice_item`)* [","]
    slice_item: `expression` | `proper_slice`
    proper_slice: [`lower_bound`] ":" [`upper_bound`] [ ":" [`stride`] ]
@@ -640,7 +640,7 @@
 the call.
 
 .. note::
-   
+
    An implementation may provide builtin functions whose positional parameters do
    not have names, even if they are 'named' for the purpose of documentation, and
    which therefore cannot be supplied by keyword.  In CPython, this is the case for
@@ -1045,7 +1045,7 @@
 Comparison of objects of the differing types depends on whether either
 of the types provide explicit support for the comparison.  Most numeric types
 can be compared with one another, but comparisons of :class:`float` and
-:class:`Decimal` are not supported to avoid the inevitable confusion arising            
+:class:`Decimal` are not supported to avoid the inevitable confusion arising
 from representation issues such as ``float('1.1')`` being inexactly represented
 and therefore not exactly equal to ``Decimal('1.1')`` which is.  When
 cross-type comparison is not supported, the comparison method returns
@@ -1323,7 +1323,7 @@
    identity only, but this caused surprises because people expected to be able
    to test a dictionary for emptiness by comparing it to ``{}``.
 
-.. [#] Due to automatic garbage-collection, free lists, and the dynamic nature of 
+.. [#] Due to automatic garbage-collection, free lists, and the dynamic nature of
    descriptors, you may notice seemingly unusual behaviour in certain uses of
    the :keyword:`is` operator, like those involving comparisons between instance
    methods, or constants.  Check their documentation for more info.
diff --git a/Doc/reference/lexical_analysis.rst b/Doc/reference/lexical_analysis.rst
index 83d3b8b..826e692 100644
--- a/Doc/reference/lexical_analysis.rst
+++ b/Doc/reference/lexical_analysis.rst
@@ -608,7 +608,7 @@
 
    7     2147483647                        0o177    0b100110111
    3     79228162514264337593543950336     0o377    0x100000000
-         79228162514264337593543950336              0xdeadbeef						    
+         79228162514264337593543950336              0xdeadbeef						
 
 
 .. _floating:
@@ -654,7 +654,7 @@
 part, add a floating point number to it, e.g., ``(3+4j)``.  Some examples of
 imaginary literals::
 
-   3.14j   10.j    10j     .001j   1e100j  3.14e-10j 
+   3.14j   10.j    10j     .001j   1e100j  3.14e-10j
 
 
 .. _operators:
diff --git a/Doc/reference/simple_stmts.rst b/Doc/reference/simple_stmts.rst
index a799301..611435a 100644
--- a/Doc/reference/simple_stmts.rst
+++ b/Doc/reference/simple_stmts.rst
@@ -507,7 +507,7 @@
 .. index:: pair: exception; chaining
            __cause__ (exception attribute)
            __context__ (exception attribute)
-   
+
 The ``from`` clause is used for exception chaining: if given, the second
 *expression* must be another exception class or instance, which will then be
 attached to the raised exception as the :attr:`__cause__` attribute (which is
@@ -729,7 +729,7 @@
 searched inside the package.  A package is generally a subdirectory of a
 directory on ``sys.path`` that has a file :file:`__init__.py`.
 
-.. 
+..
    [XXX Can't be
    bothered to spell this out right now; see the URL
    http://www.python.org/doc/essays/packages.html for more details, also about how
@@ -874,9 +874,9 @@
                 : ["=" (`target_list` "=")+ `expression_list`]
                 : | "nonlocal" `identifier` `augop` `expression_list`
 
-The :keyword:`nonlocal` statement causes the listed identifiers to refer to 
-previously bound variables in the nearest enclosing scope.  This is important 
-because the default behavior for binding is to search the local namespace 
+The :keyword:`nonlocal` statement causes the listed identifiers to refer to
+previously bound variables in the nearest enclosing scope.  This is important
+because the default behavior for binding is to search the local namespace
 first.  The statement allows encapsulated code to rebind variables outside of
 the local scope besides the global (module) scope.
 
@@ -889,7 +889,7 @@
 enclosing scope (the scope in which a new binding should be created cannot
 be determined unambiguously).
 
-Names listed in a :keyword:`nonlocal` statement must not collide with 
+Names listed in a :keyword:`nonlocal` statement must not collide with
 pre-existing bindings in the local scope.
 
 .. seealso::