[docs] [issue17815] itertools.combinations example is overly complicated
Theodoros Ikonomou
report at bugs.python.org
Mon Apr 22 17:15:08 CEST 2013
New submission from Theodoros Ikonomou:
I find the code presented as equivalent for itertools.combinations is overly complex.
I think we can change it to something easier like the following:
def combinations(iterable, r):
i, size = 0, len(iterable)
while i + r - 1 < size:
subindex = i+1
while subindex + r - 2 < size:
yield (iterable[i],) + tuple(iterable[subindex:subindex+r-1])
subindex += r - 1
i += 1
----------
assignee: docs at python
components: Documentation
messages: 187566
nosy: Theodoros.Ikonomou, docs at python
priority: normal
severity: normal
status: open
title: itertools.combinations example is overly complicated
type: behavior
versions: Python 2.6, Python 2.7, Python 3.1, Python 3.2, Python 3.3, Python 3.4, Python 3.5
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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17815>
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