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Issue 17862: Improve the signature of itertools grouper() recipe.

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Putting *n* after the *iterable* matches the signature of other itertools
and recipes.  Also, it reads better.

Suggested by Ezio Melotti.
This commit is contained in:
Raymond Hettinger 2013-05-05 19:53:41 -07:00
parent 5b1ab24751
commit 44571daf0e
1 changed files with 2 additions and 2 deletions
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4
Doc/library/itertools.rst
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@ -705,9 +705,9 @@ which incur interpreter overhead.
next(b, None)
return zip(a, b)
def grouper(n, iterable, fillvalue=None):
def grouper(iterable, n, fillvalue=None):
"Collect data into fixed-length chunks or blocks"
# grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
# grouper('ABCDEFG', 3, 'x') --> ABC DEF Gxx"
args = [iter(iterable)] * n
return zip_longest(*args, fillvalue=fillvalue)