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authorRaymond Hettinger <python@rcn.com>2009-02-04 10:52:32 (GMT)
committerRaymond Hettinger <python@rcn.com>2009-02-04 10:52:32 (GMT)
commitd507afdc81115b800e3dc72d5e7285453dce8b38 (patch)
treedb3f0e866262d63956f5469619c4e5df368a1fe9 /Doc/library/itertools.rst
parentfd4c872726e650f1e43c4eed4fa7e7e326b3fee6 (diff)
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Minor doc fixups.
Diffstat (limited to 'Doc/library/itertools.rst')
-rw-r--r--Doc/library/itertools.rst6
1 files changed, 3 insertions, 3 deletions
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 78b10c7..240baf0 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -282,7 +282,7 @@ loops that truncate the stream.
class groupby(object):
# [k for k, g in groupby('AAAABBBCCDAABBB')] --> A B C D A B
- # [(list(g)) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D
+ # [list(g) for k, g in groupby('AAAABBBCCD')] --> AAAA BBB CC D
def __init__(self, iterable, key=None):
if key is None:
key = lambda x: x
@@ -675,8 +675,8 @@ which incur interpreter overhead.
return imap(function, count(start))
def nth(iterable, n):
- "Returns the nth item or empty list"
- return list(islice(iterable, n, n+1))
+ "Returns the nth item or None"
+ return next(islice(iterable, n, None), None)
def quantify(iterable, pred=bool):
"Count how many times the predicate is true"