Email header with ;;;; stuffing takes very long to parse

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难度
4/5
预计耗时
3-5 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
python
领域
performance

调研方向

从链接的 repro.py 脚本开始并运行它，以重现电子邮件标头解析变慢的问题。跟踪电子邮件组件的解析路径以确定原因，然后验证 repro 是否能在一秒内完成；如果能找到相关的测试位置，则添加或更新回归测试。

由索引模型根据 Issue 内容生成。

描述

3.12 performance topic-email
BPO 42909
Nosy @warsaw, @bitdancer, @akulakov, @eriker-fsc
Files
  • repro.py: Simple self-contained repro script - should take less than 1s but takes more than 30
    		•

    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 2021-01-12.13:13:10.953>
labels = ['3.8', 'expert-email', '3.10', 'performance', '3.7', '3.9']
title = 'Email header with ;;;; stuffing takes very long to parse'
updated_at = <Date 2021-07-09.22:18:24.963>
user = 'https://github.com/eriker-fsc'

    bugs.python.org fields:

    activity = <Date 2021-07-09.22:18:24.963>
actor = 'andrei.avk'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['email']
creation = <Date 2021-01-12.13:13:10.953>
creator = 'eriker'
dependencies = []
files = ['49736']
hgrepos = []
issue_num = 42909
keywords = []
message_count = 3.0
messages = ['384931', '384938', '397228']
nosy_count = 4.0
nosy_names = ['barry', 'r.david.murray', 'andrei.avk', 'eriker']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue42909'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8', 'Python 3.9', 'Python 3.10']

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