More on Lists
=============
-The list data type has some more methods. Here are all of the methods of list
-objects:
-
+The :ref:`list <typesseq-list>` data type has some more methods. Here are all
+of the methods of list objects:
.. method:: list.append(x)
:noindex:
Sets
====
-Python also includes a data type for *sets*. A set is an unordered collection
-with no duplicate elements. Basic uses include membership testing and
-eliminating duplicate entries. Set objects also support mathematical operations
-like union, intersection, difference, and symmetric difference.
+Python also includes a data type for :ref:`sets <types-set>`. A set is
+an unordered collection with no duplicate elements. Basic uses include
+membership testing and eliminating duplicate entries. Set objects also
+support mathematical operations like union, intersection, difference, and
+symmetric difference.
Curly braces or the :func:`set` function can be used to create sets. Note: to
create an empty set you have to use ``set()``, not ``{}``; the latter creates an