[issue32039] timeit documentation should describe caveats

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

Yet one mistake: https://stackoverflow.com/questions/35014951/why-is-max-slower-than-sort

$ python3 -m timeit -s 'import random;a=list(range(10000));random.shuffle(a)' 'a.sort();a[-1]'

Here the list is sorted at first iteration, and all following iterations measure the speed of sorting a sorted list.

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