python - 为什么这种 PyArray_SimpleNewFromData 段错误的简单用法？

Question

我正在尝试在 python 的 C 扩展中使用 NumPy。

我遇到了无法解释的段错误，我已将其缩小到这个简单的示例。

#include "numpy/arrayobject.h"

int main()
{
    int dims[] = {1};
    double d[] = {1};

    PyArray_SimpleNewFromData(1, dims, NPY_DOUBLE, &d);
}

Answer 1

https://docs.scipy.org/doc/numpy/user/c-info.how-to-extend.html

This function must be declared so that it is visible to code outside of the routine. Besides adding the methods and constants you desire, this subroutine must also contain calls like import_array() and/or import_ufunc() depending on which C-API is needed. Forgetting to place these commands will show itself as an ugly segmentation fault (crash) as soon as any C-API subroutine is actually called.

我还必须事先包含 Py_Initialize()，因为这是一个独立示例，没有像通常那样通过 Python 虚拟机运行。