On 2020-05-15 20:36, David Mertz wrote:
On Fri, May 15, 2020 at 12:55 PM Eric V. Smith <e...@trueblade.com
<mailto:e...@trueblade.com>> wrote:
Also: The PEP says "At most one additional item may be consumed from
one of the iterators when compared to normal zip usage." I think
this should be prefaced with "If ValueError is raised ...". Also,
why does it say "at most one additional item". How could it ever be
less than one?
This struck me as strange also. I mean, the wording can be improved to
clarify "if error."
But more significantly, it seems like it cannot conceivably be true. If
might be "At most one additional item from EACH of the iterators."
If I do zip_strict(a, b, c, d, e) and "e" is the one that is shorter,
how could any algorithm ever avoid consuming one extra item of a, b, c,
and d each?!
Well, it does say "when compared to normal zip usage".
The normal zip would consume an item of a, b, c, and d. If e is
exhausted, then zip would just stop, but zip_strict would raise
ValueError. There would be no difference in the number of items consumed
but not used.
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