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Issue 7447: Improve docs for sum().

This commit is contained in:
Raymond Hettinger 2010-10-31 21:27:50 +00:00
parent af577cbb71
commit 30bf6e836e
1 changed files with 6 additions and 3 deletions
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Doc/library/functions.rst
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@ -1100,10 +1100,13 @@ are always available. They are listed here in alphabetical order.
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 are not allowed to be strings. The fast, correct way to concatenate a
sequence of strings is by calling ``''.join(sequence)``. To add floating
point values with extended precision, see :func:`math.fsum`\.
and the start value is not allowed to be a string.
For some use cases, there a good alternatives to :func:`sum`.
The preferred, fast way to concatenate a sequence of strings is by calling
``''.join(sequence)``. To add floating point values with extended precision,
see :func:`math.fsum`\. To concatenate a series of iterables, consider using
:func:`itertools.chain`.
.. function:: super([type[, object-or-type]])