python / python/cpython

from __future__ import annotations breaks profiler's handling of dataclasses

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3.11 3.12 3.13 stdlib type-bug
主要语言
Python
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描述

BPO 44414
Nosy @JelleZijlstra, @wilcoxjay

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-06-13.21:20:30.284>
labels = ['type-bug', 'library', '3.9']
title = "from __future__ import annotations breaks profiler's handling of dataclasses"
updated_at = <Date 2021-06-14.04:51:07.905>
user = 'https://github.com/wilcoxjay'

bugs.python.org fields:

activity = <Date 2021-06-14.04:51:07.905>
actor = 'JelleZijlstra'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-06-13.21:20:30.284>
creator = 'wilcoxjay'
dependencies = []
files = []
hgrepos = []
issue_num = 44414
keywords = []
message_count = 1.0
messages = ['395762']
nosy_count = 2.0
nosy_names = ['JelleZijlstra', 'wilcoxjay']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue44414'
versions = ['Python 3.9']

Linked PRs
  • gh-155600

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  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

调研方向

首先查看 issue 中描述的 profiler 和 dataclasses 行为,然后检查链接的 PR gh-155600 以了解当前方向。使用 from future import annotations 和 dataclasses 进行有针对性的复现来确认该失败;当 profiler 的处理能够正确工作且不会导致现有行为回归时,即表示完成。

由索引模型根据 Issue 内容生成。

评估

技术栈
python
领域
tooling
Issue 类型
缺陷
难度
4/5
预计耗时
3-5 天
活跃度
停滞
描述清晰度
需要澄清
新手友好度
25/100

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