关于python：简单的日志记录对象

Simple logging object

我有一些python模块，它有一个类ModuleClass，我不能修改这个类。

现在，我希望能够代理方法调用并添加某些日志记录功能。我想这应该通过转发对象和相应的代理(following Effective Java, Item 16)来完成。

我提出的python伪代码如下。

(对不起，我对python很不在行，如果您能指出这里的错误，我将不胜感激)。

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# This is what I've got in my module and this code cannot be changed.
class ModuleClass(object):
def method1(self):
# Some implementation
pass()
def method2(self):
# Some implementation
pass()

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# Simple forwarding proxy to avoid the situation described in Effective Java, I16

# However, in Java this class would usually be extending the interface, not
# inheriting 'ModuleClass' (I'm confused and don't know how to do the same
# in python).

class ForwardingModuleClass(ModuleClass):
# 'proxifiedObject' is
def __init__(self, proxifiedObject):
self.proxifiedObject = proxifiedObject

# Overriding the first method
def method1(self):
return self.proxifiedObject.method1()

# Same for method2...

号

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class LoggingModuleClass(ForwardingModuleClass):
# 'classThatActuallyDoesStuff' should be an instance of 'ModuleClass'.
def __init__(self, classThatActuallyDoesStuff):
# Sorry for my bad knowledge of python syntax, but
# I assume I can initialize the superclass here using
# the supplied 'ModuleClass' instance.
super(classThatActuallyDoesStuff)

# Overriding the first method.
def method1(self):
print("Yay! This 'method1' really logs something!")
return super.method1()

# Overriding the second method.
def method2(self):
print("Yay!!!! This 'method2' also does something cool!")
return super.method2()

现在，我想，适当地写下，这会起作用，我将拥有我的初始ModuleClass的日志代理。

如果有错误或这不是Python，请指出它。

另外，我怀疑使用decorators可以很容易地做到这一点，但不幸的是，我无法找到合适的方法，我不知道如果ModuleClass已经有了一些方法修饰器会发生什么。

你也能帮我吗？