python - Python timeit 模块中的 -s 标志是什么？

Question

来自 Python 食谱

python timeit.py -s"import random" -s"x=range(100000); random.shuffle(x)" "sorted(x)"
10 loops, best of 3: 152 msec per loop

-s 标志有什么作用？在线搜索，python帮助和SO。但是没有找到很好的解释。谢谢。

Answer 1

来自Python内置的help()

>>>import timeit
>>>help(timeit)

....
Command line usage:
    python timeit.py [-n N] [-r N] [-s S] [-t] [-c] [-h] [--] [statement]

Options:
  -n/--number N: how many times to execute 'statement' (default: see below)
  -r/--repeat N: how many times to repeat the timer (default 3)
  -s/--setup S: statement to be executed once initially (default 'pass')
....