python / python/cpython

smtplib send_message does not correctly handle unicode addresses if message uses EmailPolicy

Open
#72,164 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

stdlib topic-email type-bug
Dominant language
Python
Stars
77.2k
Forks
36k
PR merge metrics
PR metrics pending

Description

BPO 27977
Nosy @warsaw, @bitdancer

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

Show more details

GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2016-09-06.18:43:52.220>
labels = ['type-bug', 'expert-email']
title = 'smtplib send_message does not correctly handle unicode addresses if message uses EmailPolicy'
updated_at = <Date 2016-09-06.18:43:52.220>
user = 'https://github.com/bitdancer'

bugs.python.org fields:

activity = <Date 2016-09-06.18:43:52.220>
actor = 'r.david.murray'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['email']
creation = <Date 2016-09-06.18:43:52.220>
creator = 'r.david.murray'
dependencies = []
files = []
hgrepos = []
issue_num = 27977
keywords = []
message_count = 1.0
messages = ['274597']
nosy_count = 2.0
nosy_names = ['barry', 'r.david.murray']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue27977'
versions = ['Python 3.5', 'Python 3.6']

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at smtplib.send_message and the email package's EmailPolicy handling, then reproduce the Unicode-address case described in the issue. Trace how addresses are processed when EmailPolicy is used; done means send_message handles those addresses correctly without regressing normal address handling.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.