PyO3/pyo3

RFC: Make pyclass immutable by default

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#4,369 建立於 2024年7月21日

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 (6 留言) (0 反應) (0 負責人)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.

貢獻者指南

技術棧
rustpython
領域
backenddeveloper experience
議題類型
research
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
5
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
over 1 week
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Rust programmingPyO3 internalsunderstanding of Rust attributes
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
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.