[Python-ideas] The prohibition overrides the class method

[Ian Kelly]

On Mon, Nov 16, 2015 at 8:44 AM, Chris Angelico <rosuav at gmail.com> wrote:
> On Tue, Nov 17, 2015 at 2:03 AM, Иван Спиненко <spinenkoia at gmail.com> wrote:
>> Hello, I want to apologize for my English.
>
> It's fine - and a lot better than my Russian! (Or Ukrainian, or any of
> the other languages that use a Cyrillic script. See, I can't even tell
> one from another - all I know is which script you've used.)
>
>> I propose to make an analogue of the final specifier in C ++. In class
>> abc.ABCMeta has decorator abstractmethod, you can add decorator finalmethod.
>
> It's not common in Python to actually enforce this kind of thing.
> What's the advantage of stopping people from overriding some methods?

I would add the point that while abstractmethod helps the programmer
by warning when they've forgotten to implement a method, finalmethod
is more likely to just get in the way when the programmer needs to
override a method, but the class author has arbitrarily decided that
they can't. Python usually tries to give the programmer what they need
while staying out of their way as much as possible.