gh-139757: Add BINARY_OP_SUBSCR_USTR_INT#143389

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Fidget-Spinner merged 11 commits into

python:mainfrom

chris-eibl:substr_cstr_int

Jan 4, 2026

Commits on Jan 3, 2026

POC implementation of BINARY_OP_SUBSCR_NCSTR_INT
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Commits on Jan 4, 2026

Merge remote-tracking branch 'upstream/main' into substr_cstr_int
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BINARY_OP_SUBSCR_NCSTR_INT -> BINARY_OP_SUBSCR_USTR_INT
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Use _POP_TOP_UNICODE
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move _PyLong_IsNonNegativeCompact into specialize
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Narrow the result type of _BINARY_OP_SUBSCR_USTR_INT to str in the JIT
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add tests
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blurb it
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fix DEOPT_IF and INPUTS_DEAD
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bump magic number - better safe than sorry
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Update Include/internal/pycore_magic_number.h
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