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gh-121109: Fix performance of tarfile reading with "r|*"

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This PR fixes #121109. Using the test files and test script described in the issue: | filename | mode | time with PR | | --- | --- | ---...

TomiBelan

email: invalid RFC 2047 address header after refolding with email.policy.default

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# Bug report ### Bug description: If a (legacy email API) email.message.Message is assigned an address header that is pre-encoded with RFC 2047, calling as_bytes(policy=default) can generate an invalid address...

medmunds

"import hashlib" crashes on aarch64 after Finalize and re-initialize

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# Crash report ### What happened? Compiling and linking below program results in a crash when run on aarch64 (macOS, Debian VM or Ubuntu 22 VM in Azure for example):...

rdoeffinger

gh-121285: Remove backtracking when parsing tarfile headers

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This removes all instances of backtracking from parsing tarfile headers, specifically `hdrcharset`, PAX, and GNU sparse headers. * Issue: gh-121285

sethmlarson

gh-121021: zipfile: Support for extended_mtime attribute

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zipinfo now supports attribute - extended_mtime fixes: #121021 ---- 📚 Documentation preview 📚: https://cpython-previews--121020.org.readthedocs.build/ * Issue: gh-121021

Akasurde

gh-121267: Improve performance of tarfile (#121267)

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Tarfile in the default write mode spends much of its time resolving UIDs into usernames and GIDs into group names. By caching these mappings, a significant speedup can be achieved....

jforberg

We now have the ``_Py_SourceLocation`` which captures a 4-int source location range. We can use it in symtable instead of passing 4 ints around everywhere. ### Linked PRs * gh-121353

iritkatriel

KeyboardInterrupt during paste breaks the new REPL

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# Bug report ### Bug description: To reproduce, type `f = """` then paste a giant block of text (I pasted [the text of Frankenstein](https://github.com/asweigart/codebreaker/blob/master/frankenstein.txt)) then press Ctrl+C immediately (while...

treyhunner

* Issue: gh-121338

mdboom

gh-120289: Do not free memory in disable() to prevent use-after-free

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* Issue: gh-120289

gaogaotiantian