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On 27 November 2015 at 17:49, 王珺 email@example.com wrote:
I used __getattr__ sometimes, and descriptor especially property is so widely used. I wonder whether someone had encountered the same problem with me.
However, this is a complicated problem including performance issues, and backward compatibility.
I understand the issue you are reporting (and thanks for stripping it down to a simple example in the issue) but could you give a real world example of how this might actually be an issue in practice? I don't believe I've ever heard anyone report this as an issue before, which implies to me that it's not a particularly common problem in real code.
I'm not 100% clear on how bad any backward compatibility or performance issues might be, but it's certainly true that we'd need real-world use cases to justify the cost of the change. Paul