python - 计算 python 脚本执行时间的最简单方法？

Question

计算 Python 脚本执行时间的最简单方法是什么？

Answer 1

timeit模块专为此目的而设计。

愚蠢的例子如下

def test():
    """Stupid test function"""
    L = []
    for i in range(100):
        L.append(i)

if __name__ == '__main__':
    from timeit import Timer
    t = Timer("test()", "from __main__ import test")
    print t.timeit()

Note that timeit can also be used from the command line (python -m timeit -s 'import module' 'module.test()') and that you can run the statement several times to get a more accurate measurement. Something I think time command doesn't support directly. -- jcollado