typing.get_type_hints wrong namespace for forward-declaration of inner class

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#82,016 创建于 2019年8月13日 8 条评论 0 个 reaction 已指派 0 人在 GitHub 查看

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难度: 4/5
预计耗时: 3-5 天
新手友好度: 32/100

Issue 类型: 缺陷
描述清晰度: 需要澄清
活跃度: 停滞
技术栈: python
领域: tooling

调研方向

首先运行 typing_check.py 以重现 get_type_hints 失败，然后检查涉及解析内部类前向声明的 typing 实现。使用 get_type_hints_for_inner_classes.zip 和 metaclass_workaround.py 测试其他情况；当内部类的前向声明在正确的 namespace 中解析时，该 issue 即完成。

由索引模型根据 Issue 内容生成。

描述

stdlib topic-typing type-bug

BPO	37835
Nosy	@ilevkivskyi
Files	typing_check.py: A simple file to reproduce the error with inner classes. get_type_hints_for_inner_classes.zip metaclass_workaround.py

^{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 2019-08-13.09:36:43.877>
labels = ['3.7', 'type-bug', 'library']
title = 'typing.get_type_hints wrong namespace for forward-declaration of inner class'
updated_at = <Date 2019-09-09.09:59:14.831>
user = 'https://bugs.python.org/netbnd'

bugs.python.org fields:

activity = <Date 2019-09-09.09:59:14.831>
actor = 'levkivskyi'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2019-08-13.09:36:43.877>
creator = 'netbnd'
dependencies = []
files = ['48539', '48552', '48562']
hgrepos = []
issue_num = 37835
keywords = []
message_count = 8.0
messages = ['349535', '349958', '349986', '349988', '350468', '350982', '351282', '351398']
nosy_count = 2.0
nosy_names = ['levkivskyi', 'netbnd']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue37835'
versions = ['Python 3.6', 'Python 3.7']

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