python / python/cpython

Email Header Folding Converts Non-CRLF Newlines to CRLFs

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3.11 stdlib topic-email type-bug
Dominant language
Python
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Avg merge
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Merged PRs (30d)
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Description

BPO 46462

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 2022-01-21.18:21:38.334>
labels = ['type-bug', 'library', '3.11']
title = 'Email Header Folding Converts Non-CRLF Newlines to CRLFs'
updated_at = <Date 2022-01-21.18:21:38.334>
user = 'https://bugs.python.org/jwalterclark'

bugs.python.org fields:

activity = <Date 2022-01-21.18:21:38.334>
actor = 'jwalterclark'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2022-01-21.18:21:38.334>
creator = 'jwalterclark'
dependencies = []
files = []
hgrepos = []
issue_num = 46462
keywords = []
message_count = 1.0
messages = ['411171']
nosy_count = 1.0
nosy_names = ['jwalterclark']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue46462'
versions = ['Python 3.11']

Contributor guide

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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 Python's library email header folding behavior but names no implementation file or test. Start by locating the header-folding code and existing tests for newline handling, reproduce the conversion of non-CRLF newlines, and confirm that the relevant newline forms remain unchanged as appropriate.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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