Implement CPython 3.14 subinterpreter APIs - #8605

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youknowone wants to merge 12 commits into

RustPython:mainfrom

youknowone:flatten-eval-loop

Commits on Aug 29, 2026

Add _interpreters and _interpchannels modules
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d8a4366
Correct _interpreters and _interpchannels against CPython 3.14
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850a64f
Correct the stateless checks and error shapes of _interpreters against CPython 3.14
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eaa5326
Correct cross-interpreter data conversion and channel argument parsing
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a8d8a48
Correct interpreter ID parsing and the channel_send defaults lookup
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dafe1b5
Add the _interpqueues module and concurrent.interpreters._queues
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336cb76
Add the high-level concurrent.interpreters API
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48201fb
Destroy leftover subinterpreters when the main interpreter finalizes
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89475dc
Absolutize the script path in run_file
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8cd6724
Name types in error messages the way tp_name does
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b3e3151
Gate script_code's source compilation on the compiler feature
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f563998
Skip test_pyinit_function_raises_exception
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9e57d98