Setting the frame's line number causes `SystemError` to be raised if done in callback from `BRANCH_LEFT` or `BRANCH_RIGHT` event · Issue #137200 · python/cpython · GitHub
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Setting the frame's line number causes SystemError to be raised if done in callback from BRANCH_LEFT or BRANCH_RIGHT event #137200

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Setting the frame's line number causes SystemError to be raised if done in callback from BRANCH_LEFT or BRANCH_RIGHT event#137200
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interpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error

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@markshannon
markshannon
opened on Jul 29, 2025

Bug report

Bug description:

https://github.com/python/cpython/blob/main/Objects/frameobject.c#L1711

The two two new events BRANCH_LEFT and BRANCH_RIGHT should be added under case PY_MONITORING_EVENT_BRANCH:

CPython versions tested on:

CPython main branch

Operating systems tested on:

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    interpreter-core(Objects, Python, Grammar, and Parser dirs)type-bugAn unexpected behavior, bug, or error

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