Chronic Python 程序执行时间分析器

Chronic 介于简单的定时器和分析器。通过添加修饰符或包装代码语句来获得程序执行时间。Chronic 跟踪调用层次结构来告诉你时间块内执行其他的块。附加一个事件侦听器来记录你想要的时间。

示例代码：

import chronicfrom pprint import pprint@chronic.timedef time_one():    pass@chronic.timedef time_two():    with chronic.Timer('block2'):        print chronic.stack        # ('time_two', 'block2')    pprint(chronic.timings)    # prints local view of timings    # {'block2': {'average_elapsed': 1.0967254638671875e-05,    #             'count': 1,    #             'total_elapsed': 1.0967254638671875e-05}}with chronic.Timer('block1'):    time_one()pprint(chronic.timings)def print_done(elapsed, timings, stack):    print stack    pprint(timings)time_one()chronic.post_timing.connect(print_done)time_one()# []# 9.5367431640625e-07# {'average_elapsed': 9.5367431640625e-07,#  'count': 2,#  'total_elapsed': 1.9073486328125e-06}chronic.post_timing.disconnect(print_done)time_two()# ['time_two', 'block2']# {'block2': {'average_elapsed': 5.9604644775390625e-06,#             'count': 1,#             'total_elapsed': 5.9604644775390625e-06}}