--- c:\cpython\doc\library\stdtypes.rst	2015-03-11T21:08:46.520956+00:00
+++ stdtypes.rst	2015-03-17T23:18:48.336621+00:00
@@ -3708,7 +3708,8 @@
 a dictionary key or as an element of another set.
 
 Non-empty sets (not frozensets) can be created by placing a comma-separated list
-of elements within braces, for example: ``{'jack', 'sjoerd'}``, in addition to the
+of elements within braces, for example: ``{'jack', 'sjoerd'}``, by using a set
+comprehension, for example ``{x for x in iterable}``, in addition to the
 :class:`set` constructor.
 
 The constructors for both classes work the same:
@@ -3907,7 +3908,8 @@
 
 Dictionaries can be created by placing a comma-separated list of ``key: value``
 pairs within braces, for example: ``{'jack': 4098, 'sjoerd': 4127}`` or ``{4098:
-'jack', 4127: 'sjoerd'}``, or by the :class:`dict` constructor.
+'jack', 4127: 'sjoerd'}``, by a dict comprehension, for example:
+``{x: x**2 for x in iterable}`` or by the :class:`dict` constructor.
 
 .. class:: dict(**kwarg)
            dict(mapping, **kwarg)