Python函数调用跟踪装饰器

def calltracker(func):

    @wraps(func)

    def wrapper(*args, **kwargs):

        wrapper.calls += 1

        return func(*args, **kwargs)

    wrapper.calls = 0

    return wrapper

@calltracker

def f():

    return 'f called'

>>> f.calls

0

>>> f()

'f called'

>>> f.calls

1