Update test_sys from v3.14.3 and impl more sys module#7075

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youknowone wants to merge 9 commits intoRustPython:mainfrom

Commits on Feb 15, 2026

fix faulthandler
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support sub-module from #[pymodule]
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Update test_sys from v3.14.3

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Implement sys.call_tracing, sys._current_exceptions
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Improve sys module, stdio, and traceback formatting
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Update test_monitoring from v3.14.3

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impl monitoring
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optimize coroutine exception
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optimize frame
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