pairs from a list

[Peter Otten]

Arnaud Delobelle wrote:

> On Jan 22, 4:10 pm, Alan Isaac <ais... at american.edu> wrote:
> 
>> <URL:http://bugs.python.org/issue1121416>
>>
>> fwiw,
>> Alan Isaac
> 
> Thanks.  So I guess I shouldn't take the code snippet I quoted as a
> specification of izip but rather as an illustration.

You can be bolder here as the izip() docs explicitly state

"""
Note, the left-to-right evaluation order of the iterables is
guaranteed. This makes possible an idiom for clustering a data series into
n-length groups using "izip(*[iter(s)]*n)".
"""

and the bug report with Raymond Hettinger saying

"""
Left the evaluation order as an unspecified, implementation
specific detail.
"""

is about zip(), not izip().

Peter