Le 20 juil. 2017 3:49 AM, "INADA Naoki" <songofaca...@gmail.com> a écrit : > I'm +1 with your idea in performance point of view.
(...) But ABC is too heavy to use only for checking abstract methods. It uses three inefficient WeakSet [1] and it overrides isinstance and issubclass with slow Python implementation. I don't think that we can get ride of abc from the io and importlib. They are here to stay. I hear your performance analysis. Why not making abc faster instead of trying to workaround abc for perf issue? Someone already wrote WeakrefSet, a PR is waiting for our review! Victor
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