Drop restriction that meta.prepare() must return a dict (subclass)

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#61,623 创建于 2013年3月14日 6 条评论 0 个 reaction 已指派 0 人在 GitHub 查看

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难度: 4/5
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新手友好度: 35/100

Issue 类型: 功能
描述清晰度: 基本清楚
活跃度: 停滞
技术栈: python
领域: compilers

调研方向

Start by reading the linked type-namespace-restriction.diff patch, then review the dependent issues bpo-17422 and bpo-31588 for related constraints and failure cases. Done means the restriction on meta.prepare() is addressed consistently and the relevant class-creation behavior is verified by tests.

由索引模型根据 Issue 内容生成。

描述

interpreter-core type-feature

BPO	17421
Nosy	@loewis, @ncoghlan, @vstinner, @durban, @ericsnowcurrently, @serhiy-storchaka, @cdonovick
Dependencies	bpo-17422: language reference should specify restrictions on class namespace bpo-31588: SystemError in class creation in case of a metaclass with a bad prepare() method
Files	type-namespace-restriction.diff

^{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 2013-03-14.20:20:27.737>
labels = ['type-feature']
title = 'Drop restriction that meta.__prepare__() must return a dict (subclass)'
updated_at = <Date 2019-03-12.22:17:10.507>
user = 'https://github.com/ericsnowcurrently'

bugs.python.org fields:

activity = <Date 2019-03-12.22:17:10.507>
actor = 'donovick'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2013-03-14.20:20:27.737>
creator = 'eric.snow'
dependencies = ['17422', '31588']
files = ['29408']
hgrepos = []
issue_num = 17421
keywords = ['patch']
message_count = 6.0
messages = ['184187', '184203', '184206', '184309', '303022', '337814']
nosy_count = 7.0
nosy_names = ['loewis', 'ncoghlan', 'vstinner', 'daniel.urban', 'eric.snow', 'serhiy.storchaka', 'donovick']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue17421'
versions = ['Python 3.4']

主要语言: Python
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