1-liner: three uses of itertools, one counter clear solution for Aggregate and Count by Phil15 - python coding challenges

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1-liner: three uses of itertools, one counter solution in Clear category for Aggregate and Count by Phil15

import itertools as it
from collections import Counter

def aggregate_and_count(iterable):
    return Counter(it.chain.from_iterable(it.starmap(it.repeat, iterable)))

July 17, 2021

Comments:

Phil15 on July 18, 2021, 1:30 p.m.
<p>For those who think it is not a real 1-liner: imports can be made inline and "def return" can be made "lambda". Without sacrificing clarity.</p> <pre class='brush: python'>aggregate_and_count = lambda iterable, Counter=__import__('collections').Counter, it=__import__('itertools'): Counter(it.chain.from_iterable(it.starmap(it.repeat, iterable))) </pre>

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