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| -rw-r--r-- | Doc/library/functions.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst index 415a65b494..8897705672 100644 --- a/Doc/library/functions.rst +++ b/Doc/library/functions.rst @@ -1562,11 +1562,11 @@ are always available. They are listed here in alphabetical order. about strings, see :ref:`textseq`. -.. function:: sum(iterable[, start]) +.. function:: sum(iterable, /, start=0) Sums *start* and the items of an *iterable* from left to right and returns the - total. *start* defaults to ``0``. The *iterable*'s items are normally numbers, - and the start value is not allowed to be a string. + total. The *iterable*'s items are normally numbers, and the start value is not + allowed to be a string. For some use cases, there are good alternatives to :func:`sum`. The preferred, fast way to concatenate a sequence of strings is by calling |