python / python/cpython

email parser fails to decode quoted-printable rfc822 message attachemnt

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3.9 (EOL) topic-email type-bug
Dominant language
Python
Stars
77.2k
Forks
36k
PR merge metrics
PR metrics pending

Description

BPO 45066
Nosy @warsaw, @bitdancer, @DiddiLeija, @anarcat

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 2021-08-31.18:04:32.922>
labels = ['expert-email', 'type-crash', '3.9']
title = 'email parser fails to decode quoted-printable rfc822 message attachemnt'
updated_at = <Date 2021-08-31.18:36:25.572>
user = 'https://github.com/anarcat'

bugs.python.org fields:

activity = <Date 2021-08-31.18:36:25.572>
actor = 'DiddiLeija'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['email']
creation = <Date 2021-08-31.18:04:32.922>
creator = 'anarcat'
dependencies = []
files = []
hgrepos = []
issue_num = 45066
keywords = []
message_count = 2.0
messages = ['400764', '400767']
nosy_count = 4.0
nosy_names = ['barry', 'r.david.murray', 'DiddiLeija', 'anarcat']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'crash'
url = 'https://bugs.python.org/issue45066'
versions = ['Python 3.9']

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

The issue identifies the email component but provides no source file, test, or reproduction case. Start by reproducing the failure with a quoted-printable RFC822 message attachment, then trace the email parser path involved. Done means the attachment is decoded correctly without the reported failure, with regression coverage added where appropriate.

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

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