diff options
Diffstat (limited to 'Lib/test/test_itertools.py')
| -rw-r--r-- | Lib/test/test_itertools.py | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py index f69ad26..50c3402 100644 --- a/Lib/test/test_itertools.py +++ b/Lib/test/test_itertools.py @@ -1371,8 +1371,8 @@ Samuele ... return map(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" @@ -1469,7 +1469,10 @@ perform as purported. [0, 2, 4, 6] >>> nth('abcde', 3) -['d'] +'d' + +>>> nth('abcde', 9) is None +True >>> quantify(range(99), lambda x: x%2==0) 50 |