[Python-Dev] Adding start to enumerate() (original) (raw)
Nick Coghlan ncoghlan at gmail.com
Tue May 13 11:40:57 CEST 2008
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Terry Reedy wrote:
"Nick Coghlan" <ncoghlan at gmail.com> wrote in message news:4828C59B.8070008 at gmail.com... | I'd like to hear from Raymond before we do this. I'm pretty sure we had | a reason for not doing it that way in when enumerate() was added, but | I can't remember what that reason might have been...
Thanks. I think this part is the main reason I see a start argument to enumerate as potentially problematic:
"""all variants can easily be misread as starting at the nth item in the sequence (much like islice() does now): enumerate(3, 'abcdefg') --> (3,'d') (4,'e') (5, 'f') (6, 'g')."""
Is the need to use zip(count(3), seq) for the offset index case really such a burden given the associated benefits in keeping the builtin function really simple and easy to understand?
Cheers, Nick.
-- Nick Coghlan | ncoghlan at gmail.com | Brisbane, Australia
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