mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-03 08:34:29 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

#20103: Rewrite description of itertools.accumulate().

Browse source 
Patch by Christian Hudon.
This commit is contained in:
Andrew Kuchling 2014-04-15 22:28:40 -04:00
parent 42a17fa4fd
commit 15b04eb429
1 changed files with 9 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

13
Doc/library/itertools.rst
View file

@ -87,10 +87,15 @@ loops that truncate the stream.
.. function:: accumulate(iterable[, func])
Make an iterator that returns accumulated sums. Elements may be any addable
type including :class:`~decimal.Decimal` or :class:`~fractions.Fraction`.
If the optional *func* argument is supplied, it should be a function of two
arguments and it will be used instead of addition.
Make an iterator that returns accumulated sums, or accumulated
results of other binary functions (specified via the optional
*func* argument). If *func* is supplied, it should be a function
of two arguments. Elements of the input *iterable* may be any type
that can be accepted as arguments to *func*. (For example, with
the default operation of addition, elements may be any addable
type including :class:`~decimal.Decimal` or
:class:`~fractions.Fraction`.) If the input iterable is empty, the
output iterable will also be empty.
Equivalent to::