From 3eecc72ac70943f7e33297eea17803af15322c88 Mon Sep 17 00:00:00 2001 From: RafaelWO <38643099+RafaelWO@users.noreply.github.com> Date: Sat, 19 Jul 2025 11:29:44 +0200 Subject: [PATCH] Docs: Improve example for ``itertools.batched()`` (#136775) MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The current example `batched('ABCDEFG', n=3) → ABC DEF G` can confuse readers because both, the size of the tuples and the number of tuples are 3. By using a batch size of n=2, it is clearer that the `n` argument refers to the size of the resulting tuples. I.e. the new example is: `batched('ABCDEFG', n=2) → AB CD EF G` --- Doc/library/itertools.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst index 00925ae920aa..aa46920d3526 100644 --- a/Doc/library/itertools.rst +++ b/Doc/library/itertools.rst @@ -47,7 +47,7 @@ Iterator Arguments Results Iterator Arguments Results Example ============================ ============================ ================================================= ============================================================= :func:`accumulate` p [,func] p0, p0+p1, p0+p1+p2, ... ``accumulate([1,2,3,4,5]) → 1 3 6 10 15`` -:func:`batched` p, n (p0, p1, ..., p_n-1), ... ``batched('ABCDEFG', n=3) → ABC DEF G`` +:func:`batched` p, n (p0, p1, ..., p_n-1), ... ``batched('ABCDEFG', n=2) → AB CD EF G`` :func:`chain` p, q, ... p0, p1, ... plast, q0, q1, ... ``chain('ABC', 'DEF') → A B C D E F`` :func:`chain.from_iterable` iterable p0, p1, ... plast, q0, q1, ... ``chain.from_iterable(['ABC', 'DEF']) → A B C D E F`` :func:`compress` data, selectors (d[0] if s[0]), (d[1] if s[1]), ... ``compress('ABCDEF', [1,0,1,0,1,1]) → A C E F`` @@ -181,7 +181,7 @@ loops that truncate the stream. Roughly equivalent to:: def batched(iterable, n, *, strict=False): - # batched('ABCDEFG', 3) → ABC DEF G + # batched('ABCDEFG', 2) → AB CD EF G if n < 1: raise ValueError('n must be at least one') iterator = iter(iterable) -- 2.47.2