python - 狮身人面像

可能不太理想，但是也许您可以使用装饰器来扩展文档字符串。例如：

class extend_docstring:
    def __init__(self, method):
        self.doc = method.__doc__

    def __call__(self, function):
        if self.doc is not None:
            doc = function.__doc__
            function.__doc__ = self.doc
            if doc is not None:
                function.__doc__ += doc
        return function


class BaseClass:
    def mymethod(myargument):
        """This does something

        Params
        ------
        myargument : int
            Description of the argument
        """
        [...]


class MyClass1(BaseClass):
    @extend_docstring(BaseClass.mymethod)
    def mymethod(myargument):
        BaseClass.mymethod(myargument)
        [...]

class MyClass2(BaseClass):
    @extend_docstring(MyClass1.mymethod)
    def mymethod(myargument, argument2):
        """argument2 : int
            Description of the additional argument
        """

        BaseClass.mymethod(argument)
        [...]


print('---BaseClass.mymethod---')
print(BaseClass.mymethod.__doc__)
print('---MyClass1.mymethod---')
print(MyClass1.mymethod.__doc__)
print('---MyClass2.mymethod---')
print(MyClass2.mymethod.__doc__)

结果：

---BaseClass.mymethod---
This does something

        Params
        ------
        myargument : int
            Description of the argument

---MyClass1.mymethod---
This does something

        Params
        ------
        myargument : int
            Description of the argument

---MyClass2.mymethod---
This does something

        Params
        ------
        myargument : int
            Description of the argument
        argument2 : int
            Description of the additional argument

如果将装饰器作为描述符并搜索到描述符，则可以动态解析重写方法，__get__但这意味着装饰器不再可堆叠，因为它不返回实函数。