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cpython/Lib/email
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Robsdedude 0f7cd5544a
gh-144156: Fix email header folding concatenating encoded words (#144692) 
The fix for gh-92081 (gh-92281) was unfortunately flawed, and broke whitespace handling for encoded word patterns that had previously been working correctly but had no corresponding tests, unfortunately in a way that made the resulting headers not RFC compliant, in such a way that Yahoo started rejecting the resulting emails.  This fix was released in 3.14 alpha 1, 3.13 beta 2 and 3.12.5.   This PR fixes the original problem in a way that does not break anything, and in fact fixes a small pre-existing bug (a spurious whitespace after the ':' of the header label if the header value is immediately wrapped on to the next line).  (RDM)

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: R. David Murray <rdmurray@bitdance.com>
2026-02-19 13:29:05 -05:00
..
mime gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
__init__.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
_encoded_words.py Correctly fold unknown-8bit originating from encoded words. (#142517) 2025-12-24 09:14:39 -05:00
_header_value_parser.py gh-144156: Fix email header folding concatenating encoded words (#144692) 2026-02-19 13:29:05 -05:00
_parseaddr.py gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
_policybase.py gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
architecture.rst Fix typos in multiple .rst files (#1668) 2017-05-19 23:37:57 +03:00
base64mime.py gh-143214: Add the wrapcol parameter in binascii.b2a_base64() and base64.b64encode() (GH-143216) 2026-01-14 14:44:53 +02:00
charset.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
contentmanager.py gh-143214: Add the wrapcol parameter in binascii.b2a_base64() and base64.b64encode() (GH-143216) 2026-01-14 14:44:53 +02:00
encoders.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
errors.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
feedparser.py gh-68552: fix defects policy (#138579) 2025-12-06 16:54:29 -05:00
generator.py gh-144125: email: verify headers are sound in BytesGenerator 2026-01-23 14:59:35 +00:00
header.py gh-67022: Document bytes/str inconsistency in email.header.decode_header() and suggest email.headerregistry.HeaderRegistry as a sane alternative (#92900) 2025-06-15 15:29:38 -04:00
headerregistry.py gh-141510: Replace MappingProxyType with frozendict (#144904) 2026-02-18 20:23:49 +00:00
iterators.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
message.py gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
parser.py gh-139434: Update selected RFC 2822 references to RFC 5322 (#139435) 2025-11-04 14:46:07 -05:00
policy.py gh-127794: Validate email header names according to RFC 5322 (#127820) 2025-03-30 12:29:29 +00:00
quoprimime.py gh-126133: Only use start year in PSF copyright, remove end years (#126236) 2024-11-12 15:59:19 +02:00
utils.py gh-136702: Deprecate passing non-ascii *encoding* (str) to encodings.normalize_encoding (#140030) 2025-11-09 13:37:34 +01:00