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Diffstat (limited to 'Doc/library/itertools.rst')
| -rw-r--r-- | Doc/library/itertools.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst index 9dac5e1..a9d1073 100644 --- a/Doc/library/itertools.rst +++ b/Doc/library/itertools.rst @@ -693,6 +693,11 @@ which incur interpreter overhead. "Returns the nth item or a default value" return next(islice(iterable, n, None), default) + def all_equal(iterable): + "Returns True if all the elements are equal to each other" + g = groupby(iterable) + return next(g, True) and not next(g, False) + def quantify(iterable, pred=bool): "Count how many times the predicate is true" return sum(map(pred, iterable)) |