python - 每次执行方法后暂停

Question

我尝试在每次执行方法后添加一个暂停，有一种方法可以自动执行吗？其实我有这样的事情:

import time
def test (arg):
    print arg
    time.sleep(0.1)
class Foo (Object):
   def __init__ (self, a, b):
       self.a = a
       self.b = b
       time.sleep(0.1)
   def printer (self, arg):
       print arg
       time.sleep(0.1)

Answer 1

这与@Fedor Gogolev 的解决方案基本相同，除了它使用类装饰器而不是元类。

import time
import inspect
import functools

def sleep(f):
    @functools.wraps(f)    
    def wrapper(*args, **kwargs):
        result = f(*args, **kwargs)
        time.sleep(0.1)
        return result
    return wrapper

def sleeper(cls):
    for name, method in inspect.getmembers(cls, inspect.ismethod):
        setattr(cls, name, sleep(method))
    return cls

@sleeper
class Foo(object):
   def __init__(self, a, b):
       self.a = a
       self.b = b
   def printer(self, arg):
       print arg


f = Foo(1,2)
f.printer('hi')