[Python-ideas] Add a .chunks() method to sequences

[robert.hoelzl at posteo.de]

Steven D’Aprano was giving me an idea (in the bytes.hex delimiter discussion):

I had very often the use case that I want to split sequences into subsequences of same size.
How about adding a chunks() and rchunks() function to sequences:

[1,2,3,4,5,6,7].chunks(3) => [[1,2,3], [4,5,6], [7]]
"1234“.chunks(2) => [“12“, “34“]

(this could then be used to emulate stevens proposal: “ “.join(“1234567“.chunks(2)) => “12 34 56 7“)

robert
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