Remove trailing whitespace.
diff --git a/Doc/library/pickle.rst b/Doc/library/pickle.rst
index cc3c036..a99dc86 100644
--- a/Doc/library/pickle.rst
+++ b/Doc/library/pickle.rst
@@ -413,7 +413,7 @@
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. method:: object.__getinitargs__()
-
+
When a pickled class instance is unpickled, its :meth:`__init__` method is
normally *not* invoked. If it is desirable that the :meth:`__init__` method
be called on unpickling, an old-style class can define a method
@@ -430,31 +430,31 @@
is affected by the values passed to the :meth:`__new__` method for the type
(as it is for tuples and strings). Instances of a :term:`new-style class`
``C`` are created using ::
-
+
obj = C.__new__(C, *args)
-
+
where *args* is the result of calling :meth:`__getnewargs__` on the original
object; if there is no :meth:`__getnewargs__`, an empty tuple is assumed.
.. method:: object.__getstate__()
-
+
Classes can further influence how their instances are pickled; if the class
defines the method :meth:`__getstate__`, it is called and the return state is
pickled as the contents for the instance, instead of the contents of the
instance's dictionary. If there is no :meth:`__getstate__` method, the
instance's :attr:`__dict__` is pickled.
-.. method:: object.__setstate__()
-
+.. method:: object.__setstate__()
+
Upon unpickling, if the class also defines the method :meth:`__setstate__`,
it is called with the unpickled state. [#]_ If there is no
:meth:`__setstate__` method, the pickled state must be a dictionary and its
items are assigned to the new instance's dictionary. If a class defines both
:meth:`__getstate__` and :meth:`__setstate__`, the state object needn't be a
dictionary and these methods can do what they want. [#]_
-
+
.. warning::
-
+
For :term:`new-style class`\es, if :meth:`__getstate__` returns a false
value, the :meth:`__setstate__` method will not be called.
@@ -463,7 +463,7 @@
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
.. method:: object.__reduce__()
-
+
When the :class:`Pickler` encounters an object of a type it knows nothing
about --- such as an extension type --- it looks in two places for a hint of
how to pickle it. One alternative is for the object to implement a
@@ -518,7 +518,7 @@
is primarily used for dictionary subclasses, but may be used by other
classes as long as they implement :meth:`__setitem__`.
-.. method:: object.__reduce_ex__(protocol)
+.. method:: object.__reduce_ex__(protocol)
It is sometimes useful to know the protocol version when implementing
:meth:`__reduce__`. This can be done by implementing a method named