15 lines
414 B
Python
15 lines
414 B
Python
from itertools import takewhile, starmap, islice, repeat
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from operator import truth
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from funcy import iterate
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def chunk_iterable(iterable, chunk_size):
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return takewhile(truth, map(tuple, starmap(islice, repeat((iter(iterable), chunk_size)))))
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def until(cond, func, *args, **kwargs):
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for a, b in chunk_iterable(iterate(func, *args, **kwargs), chunk_size=2):
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if cond(a, b):
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return a
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