diff -r 118d6f49d6d6 Doc/tutorial/datastructures.rst
--- a/Doc/tutorial/datastructures.rst	Fri Aug 01 17:49:24 2014 +0200
+++ b/Doc/tutorial/datastructures.rst	Sat Aug 02 14:16:49 2014 +0300
@@ -620,6 +620,13 @@
    >>> words
    ['defenestrate', 'cat', 'window', 'defenestrate']
 
+In other languages, :keyword:`for` loops are often used to populate a sequence with data.  While this method works just as well in Python, it is often better to use a :ref:`list comprehensions <tut-listcomps>`. For instance, suppose we want to have a list of byte values of the sequence 'abc'. We could get it as::
+
+	>>> bytevalues = [ord(x) for x in 'abc']
+	>>> bytevalues
+	[97, 98, 99]
+
+The related concept of :ref:`generator expressions <tut-genexps>` can also be used to achieve similar goals.
 
 .. _tut-conditions: