add Python::try_attach
#5342
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add Python::try_attach
#5342
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Icxolu
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Aug 21, 2025
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I wonder whether try_acquire should maybe return a Result instead, such that it is possible to check the failure cause. This would allow us to reuse try_acquire in normal attach (lifting the auto-initialize into attach) and keep individual panic messages.
While we're here, we should add the GC traversal panic to the attach documentation.
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Good idea, I pushed a commit to make that adjustment and do a bit of general tidying up at the same time. |
Icxolu
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Great, looks good!
Just noticed that we should do a follow up to rename Python::assume_gil_acquired() into Python::assume_attached
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Ah yes and we should include that in 0.26 too. 👍 |
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Followup to #5317
This adds
Python::try_attach, an alternative toPython::attachwhich avoids attempting to attach to the interpreter when the interpreter is not in a suitable state for doing so.Only last commit is new, will leave in draft until suitable for review.