Python-手动包装方法(特别是,我正在询问robert kern的line-profiler)

时间:2018-09-07 08:07:03

标签: python python-3.x methods wrapper line-profiler

包装函数没问题:How do I use line_profiler (from Robert Kern)?

from line_profiler import LineProfiler
import random

def do_stuff(numbers):
    s = sum(numbers)
    l = [numbers[i]/43 for i in range(len(numbers))]
    m = ['hello'+str(numbers[i]) for i in range(len(numbers))]

numbers = [random.randint(1,100) for i in range(1000)]
lp = LineProfiler()
lp_wrapper = lp(do_stuff)
lp_wrapper(numbers)
lp.print_stats()

但是,我似乎无法弄清楚这是将相同的技术应用于方法。

假设我尝试在方法上使用相同的技术:

class Foo:
    def method(self):
        return 1

obj = Foo()

lp = LineProfiler()
lp_wrapper = lp(method)
obj.lp_wrapper()  # Causes an error since Foo does not have a method called "lp_wrapper"

解决此错误的最佳方法是什么?谢谢。

1 个答案:

答案 0 :(得分:0)

最好的答案来自schwobaseggl:“您尝试过lp_wrapper = lp(obj.method)

事实证明,这就是包装方法的方式。