Add take() to examples. Tighten the islice() example

1 files changed, 4 insertions, 1 deletions

diff --git a/Doc/lib/libitertools.tex b/Doc/lib/libitertools.tex
index e146c6c..4f025e3 100644
--- a/Doc/lib/libitertools.tex
+++ b/Doc/lib/libitertools.tex
@@ -314,7 +314,7 @@ Check 1202 is for $823.14
 
 >>> reportlines = ['EuroPython', 'Roster', '', 'alex', '', 'laura',
                   '', 'martin', '', 'walter', '', 'samuele']
->>> for name in islice(reportlines, 3, len(reportlines), 2):
+>>> for name in islice(reportlines, 3, None, 2):
 ...    print name.title()
 ...
 Alex
@@ -380,4 +380,7 @@ from building blocks.
 ...         result = result[1:] + (elem,)
 ...         yield result
 
+>>> def take(n, seq):
+...     return list(islice(seq, n))
+
 \end{verbatim}