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gh-152100: Move re compiler optimizations to Lib/re/_optimizer.py #152154

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serhiy-storchaka merged 1 commit into from
Jun 25, 2026
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gh-152100: Move re compiler optimizations to Lib/re/_optimizer.py #152154

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gh-152100: Move re compiler optimizations to Lib/re/_optimizer.py 
Move the compile-time optimizations (_optimize_charset, _compile_charset,
_simple, _compile_info and the literal/charset prefix helpers) out of
_compiler.py into a new Lib/re/_optimizer.py.  _compiler.py keeps only the
bytecode emitter and imports them.  This is groundwork for a follow-up
optimization; there is no behavior change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@serhiy-storchaka @claude
serhiy-storchaka and claude committed Jun 25, 2026
commit 586b2b89605aaa3d9272b19141e9d2ef2d395e57
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