sort with key clear solution for Frequency Sorting by flpo - python coding challenges

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sort with key solution in Clear category for Frequency Sorting by flpo

def checkio(numbers):
    return sorted(numbers, key=lambda x: (-numbers.count(x), x))

March 1, 2018

Comments:

piter239 on April 24, 2020, 12:05 p.m.
Exactly my solution - seems natural, doesn't it? ))

Mazza on Nov. 21, 2020, 2:10 p.m.
Love this concise solution. However, I'm struggling to understand the last part (-numbers.count(x), x). I played around with that part of the code to see different outcomes (e.g. I removed the '-' sign and the last 'x' and ran the code each time to see the result, but I can't understand why the minus sign is used and why the 2nd 'x' is used. Would love someone to explain! Thanks.

Bugo-ga on Feb. 6, 2021, 10:25 a.m.
1) The function sorted in this case focuses on the tuple, which is obtained in the lambda function. 2) Sorting is from lowest to highest. First, it goes over the first element of the tuple, then over the second. 3) The minus sign in front of the function reverses the first number.

List but not the least

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