跟踪Python中的特定函数以捕获高级执行流

您可以始终使用decorator来跟踪调用了哪些函数。下面是一个示例,它允许您跟踪调用函数的嵌套级别:

class Tracker:
    level = 0

    def __init__(self, indent=2):
        self.indent = indent

    def __call__(self, fn):
        def wrapper(*args, **kwargs):
            print(' '*(self.indent * self.level) + '-' + fn.__name__)
            self.level += 1
            out = fn(*args, **kwargs)
            self.level -= 1
            return out
        return wrapper


track = Tracker()

@track
def funct1():
    res = funct2()
    print(res)

@track
def funct2():
    factor = 3
    res = funct3(factor)
    return(res)

@track
def funct3(factor):
    res = 1 + 100*factor
    return(res)

它使用类变量 level indent funct1

funct1()
# prints:
-funct1
  -funct2
    -funct3
# returns:
301

根据您希望如何保存输出,您可以将日志模块用于输出