PyO3/pyo3

RFC: Make pyclass immutable by default

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#4,369 创建于 2024年7月21日

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 (6 评论) (0 反应) (0 负责人)Rust (10,152 star) (668 fork)batch import
Good First Issuerefactoring

描述

In https://github.com/PyO3/pyo3/pull/1979#pullrequestreview-803253395 we discussed that we'd like to have #[pyclass(mutable)], making pyclasses immutable by default and mutability opt-in.

Currently we have #[pyclass(frozen)] where this is the other way around; they are mutable by default.

贡献者指南

技术栈
rustpython
领域
backenddeveloper experience
议题类型
research
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
5
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
over 1 week
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
active
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
Rust programmingPyO3 internalsunderstanding of Rust attributes
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
10
研究方向
Study the current implementation of `#[pyclass(frozen)]` in the PyO3 source code, particularly in `pyo3 macros/src/pyclass.rs`. Read the discussion in the referenced PR #1979 to understand the motivations and constraints. Then propose a design document or a prototype for making pyclass immutable by default, including migration strategy for existing code.