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[C API] Make _PyList_FromArraySteal() function public #111489

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vstinner opened this issue Oct 30, 2023 · 5 comments
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[C API] Make _PyList_FromArraySteal() function public #111489

vstinner opened this issue Oct 30, 2023 · 5 comments
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topic-C-API

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@vstinner
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vstinner commented Oct 30, 2023 •
edited by bedevere-app bot

I dislike PyList_New() + PyList_SET_ITEM() API since the list is immediately tracked by the GC and so calling gc.get_objects() can expose an invalid list object (ex: calling repr(list) can crash). See:

The internal PyObject * _PyList_FromArraySteal(PyObject *const *src, Py_ssize_t n) function should be made public. But it should be renamed to avoid misleading "Steal" term: ownership is "moved" or "transfered", not "stolen".

cc @erlend-aasland

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@vstinner
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We should also make PyObject* _PyTuple_FromArraySteal(PyObject *const *src, Py_ssize_t n) public.

@vstinner vstinner mentioned this issue Oct 30, 2023
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@encukou
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encukou commented Oct 30, 2023

Can you wait until the new guidelines are approved? Not everyone is happy with the term steal.

@vstinner
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Can you wait until the new guidelines are approved?

The name is discussed at capi-workgroup/problems#11 (comment)

@vstinner vstinner mentioned this issue Dec 11, 2023
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@vstinner
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Naming is discussed at capi-workgroup/api-evolution#25

vstinner added a commit to vstinner/cpython that referenced this issue Dec 11, 2023
@vstinner
pythongh-111489: Add PyList_FromArrayMoveRef() function
0161a77 
Add new functions to create tuple and list from arrays:

* PyTuple_FromArray().
* PyTuple_FromArrayMoveRef().
* PyList_FromArrayMoveRef().

Add tests on new functions.
vstinner added a commit to vstinner/cpython that referenced this issue Dec 11, 2023
@vstinner
pythongh-111489: Add PyList_FromArrayMoveRef() function
c03ec75 
Add new functions to create tuple and list from arrays:

* PyTuple_FromArray().
* PyTuple_FromArrayMoveRef().
* PyList_FromArrayMoveRef().

Add tests on new functions.
vstinner added a commit to vstinner/cpython that referenced this issue Dec 11, 2023
@vstinner
pythongh-111489: Add PyList_FromArrayMoveRef() function
7b20ab0 
Add new functions to create tuple and list from arrays:

* PyTuple_FromArray().
* PyTuple_FromArrayMoveRef().
* PyList_FromArrayMoveRef().

Add tests on new functions.
@bedevere-app bedevere-app bot mentioned this issue Dec 11, 2023
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vstinner added a commit to vstinner/cpython that referenced this issue Dec 11, 2023
@vstinner
pythongh-111489: Add PyList_FromArrayMoveRef() function
b12186e 
Add new functions to create tuple and list from arrays:

* PyTuple_FromArray().
* PyTuple_FromArrayMoveRef().
* PyList_FromArrayMoveRef().

Add tests on new functions.
@vstinner
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@encukou:

Can you wait until the new guidelines are approved?

Ok, I close the issue.

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