commit cdc9f2c1d573a4ae96ac592c303f7f443a704859
author Raymond Hettinger <python@rcn.com> Tue Jan 27 06:38:00 2009 +0000
committer Raymond Hettinger <python@rcn.com> Tue Jan 27 06:38:00 2009 +0000
tree 70226b9147394c271500f32ec4af56edcb2b5200
parent badbba4f99c13e8ebc804ec0f404665a3d89fc11

Fixup itertools recipe to cover a corner case.

Lib/test/test_itertools.py

diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 0f1f695..a45e608 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -1268,6 +1268,8 @@
 ...     "combinations_with_replacement('ABC', 3) --> AA AB AC BB BC CC"
 ...     pool = tuple(iterable)
 ...     n = len(pool)
+...     if not n and r:
+...         return
 ...     indices = [0] * r
 ...     yield tuple(pool[i] for i in indices)
 ...     while 1: