Re: A missing iterator on itertools module?

Op 28/03/2024 om 17:45 schreef ast via Python-list:

Hello
>
Suppose I have these 3 strings:
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s1 = "AZERTY"
s2 = "QSDFGH"
s3 = "WXCVBN"
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and I need an itertor who delivers
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A Q W Z S C E D C ...
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I didn't found anything in itertools to do the job.

The documentation mentions a roundrobin recipe.

>
So I came up with this solution:
>
>
list(chain.from_iterable(zip("AZERTY", "QSDFGH", "WXCVBN")))
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['A', 'Q', 'W', 'Z', 'S', 'X', 'E', 'D', 'C', 'R', 'F', 'V', 'T', 'G', 'B', 'Y', 'H', 'N']

But if your strings are not equal, this will only produce a partial result.