Source

sandbox/raymondh / timings / time_cmp_to_key.py

from functools import cmp_to_key
from random import seed, randrange

seed(246246246246871)
n = 10000
k = cmp_to_key(lambda x, y: x - y)
pairs = [(k(randrange(n)), k(randrange(n))) for i in range(n)]

def test(pairs=pairs):
    for x, y in pairs:
        x < y

if __name__=='__main__':
    from timeit import Timer
    t = Timer(test)
    print(min(t.repeat(7, 1000)))
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