gh-152431: update StreamReader transport after StreamWriter.start_tls#152432
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kumaraditya303 merged 3 commits intoJul 11, 2026
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Keep StreamReader in sync with the upgraded transport after StreamWriter.start_tls(), and add a regression test for the transport replacement.
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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I think we can skip the news here :) |
kn1g78
requested review from
1st1,
asvetlov,
kumaraditya303 and
willingc
as code owners
Contributor
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This fixes a bug so it needs a news entry |
Contributor
Author
i added it . thank u! |
kumaraditya303
approved these changes
Jul 11, 2026
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Summary
After
StreamWriter.start_tls()upgrades a stream transport to TLS, theStreamWriterandStreamReaderProtocolare updated to use the new transport,but the linked
StreamReaderstill keeps the old transport.This change keeps the
StreamReadertransport in sync with the upgradedtransport.
Changes
StreamReaderProtocol._replace_transport()to also replace the linkedStreamReadertransportStreamWriter.start_tls()Issue
Testing
test_streamwriter_start_tls_updates_reader_transport