ENH: fix thread-unsafe C API usages#27145
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seberg
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Second one seems unnnecessary to me, first one looks nice with PyDict_GetItemRef either way, I like it.
The last one seems good (I almost wonder if even a copy could make sense, but probably no reason to think about it).
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Thanks, now that I glance over, I half wonder if a goto solution can't be done nicely. (I don't love the error = state)
But, I am not sure, and it looks good, so if you don't think of something quickly, please just merge.
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The macro expands to statements with open and close braces so I couldn't think of a way to keep it syntactically sound and leave the gotos. |
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Ah, right, I hadn't realized that, thanks! |
charris
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Ref numpy#26159 See also the CPython HOWTO on this topic: https://docs.python.org/3.13/howto/free-threading-extensions.html#freethreading-extensions-howto. The remaining usages of PyDict_GetItem and PyDict_Next are all around the fields attribute of structured dtypes. I'm pretty sure that dictionary is effectively frozen after the DType is constructed, so I don't worry about those uses. It's not straightforward to write tests for this, I'm just applying static refactorings in places where the refactoring shouldn't introduce new reference counting bugs. * ENH: fix thread-unsafe C API usages * ENH: use critical sections in einsum * BUG: fix error handling in loadtxt C code * revert einsum changes
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ArvidJB
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Ref numpy#26159 See also the CPython HOWTO on this topic: https://docs.python.org/3.13/howto/free-threading-extensions.html#freethreading-extensions-howto. The remaining usages of PyDict_GetItem and PyDict_Next are all around the fields attribute of structured dtypes. I'm pretty sure that dictionary is effectively frozen after the DType is constructed, so I don't worry about those uses. It's not straightforward to write tests for this, I'm just applying static refactorings in places where the refactoring shouldn't introduce new reference counting bugs. * ENH: fix thread-unsafe C API usages * ENH: use critical sections in einsum * BUG: fix error handling in loadtxt C code * revert einsum changes
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Ref #26159
See also the CPython HOWTO on this topic: https://docs.python.org/3.13/howto/free-threading-extensions.html#freethreading-extensions-howto.
The remaining usages of
PyDict_GetItemandPyDict_Nextare all around thefieldsattribute of structured dtypes. I'm pretty sure that dictionary is effectively frozen after the DType is constructed, so I don't worry about those uses.It's not straightforward to write tests for this, I'm just applying static refactorings in places where the refactoring shouldn't introduce new reference counting bugs.