python&c-c++扩展模块case-segmentfault

c++代码

extern "C" PyObject * test(){
    PyObject *oplist = PyList_New(10000);
    for(uint32_t j = 0; j < 10000; j++){
        PyObject* pTuple = PyTuple_New(3);
        assert(PyTuple_Check(pTuple));
        assert(PyTuple_Size(pTuple) == 3);
        PyTuple_SetItem(pTuple, 0, Py_BuildValue("s", "b"));
        PyTuple_SetItem(pTuple, 1, Py_BuildValue("i", 1)); 
        PyTuple_SetItem(pTuple, 2, Py_BuildValue("s", "a"));
        PyList_SetItem(oplist, j, pTuple);
    }    
    return oplist;
}

buildcmd g++-fPIC token2map.cpp-I/usr/local/app/service/virtualenvs/NLP/include/python2.7-shared-o token2map_lib.so 我只展示了一部分代码，请原谅，代码太长了

问题: 在C++代码中，这个函数返回RESILIST是SLAMAR，一切都可以。结果集永远超过215j=215个案例段FALUT。我找不到问题，希望现在的朋友能给我一些建议，我会非常感激的

我有办法解决这个问题

extern "C" PyObject * test(){
    PyGILState_STATE gstate = PyGILState_Ensure();
    PyObject *oplist = PyTuple_New(10000);
    for(int32_t j = 0; j < 10000; j++){
        PyObject * pTuple = PyTuple_New(3);
        assert(PyTuple_Check(pTuple));
        assert(PyTuple_Size(pTuple) == 3);
        PyTuple_SetItem(pTuple, 0, Py_BuildValue("s", "b"));
        PyTuple_SetItem(pTuple, 1, Py_BuildValue("i", 1)); 
        PyTuple_SetItem(pTuple, 2, Py_BuildValue("s", "a"));
        PyTuple_SetItem(oplist, j, pTuple);
    }    
    PyGILState_Release(gstate);
    return oplist;
}

---

但是有没有办法解决这个问题呢？我不认为get GIL locak是一个好方法

我无法解释为什么代码会出现seg错误。我确实觉得有趣的是，您能够使用不带参数的函数构建扩展。但是，我可以提供构建和工作的代码：

#define Py_SSIZE_T_CLEAN
#include <Python.h>
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif

static PyObject *test(PyObject *self, PyObject *ignorethis)
{
    PyObject *oplist = PyList_New(10000);
    for(uint32_t j = 0; j < 10000; ++j){
        PyObject *pTuple = PyTuple_New(3);
        PyTuple_SetItem(pTuple, 0, Py_BuildValue("s", "b"));
        PyTuple_SetItem(pTuple, 1, Py_BuildValue("i", 1));
        PyTuple_SetItem(pTuple, 2, Py_BuildValue("s", "a"));
        PyList_SetItem(oplist, j, pTuple);
    }
    return oplist;
}

static PyMethodDef methods[] = {
    {"test", test, METH_NOARGS, "function given by so"}
};

static PyModuleDef foobar = {
    PyModuleDef_HEAD_INIT,
    "foobar",
    "so question module",
    -1,
    methods
};

PyMODINIT_FUNC PyInit_foobar(void){
    PyObject *module;
    module = PyModule_Create(&foobar);
    return module;
}

#ifdef __cplusplus
}
#endif

---

您可以使用import foobar加载此模块，然后使用foobar运行。test

您永远不会检查这些函数的返回值。如文档所述，如果每个Python API函数返回值，您必须始终检查它的每个返回值。断言不是进行检查的正确方法。无论如何，这个问题似乎没有答案，甚至没有解释函数是如何调用的，因此我投票关闭

#define Py_SSIZE_T_CLEAN
#include <Python.h>
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif

static PyObject *test(PyObject *self, PyObject *ignorethis)
{
    PyObject *oplist = PyList_New(10000);
    for(uint32_t j = 0; j < 10000; ++j){
        PyObject *pTuple = PyTuple_New(3);
        PyTuple_SetItem(pTuple, 0, Py_BuildValue("s", "b"));
        PyTuple_SetItem(pTuple, 1, Py_BuildValue("i", 1));
        PyTuple_SetItem(pTuple, 2, Py_BuildValue("s", "a"));
        PyList_SetItem(oplist, j, pTuple);
    }
    return oplist;
}

static PyMethodDef methods[] = {
    {"test", test, METH_NOARGS, "function given by so"}
};

static PyModuleDef foobar = {
    PyModuleDef_HEAD_INIT,
    "foobar",
    "so question module",
    -1,
    methods
};

PyMODINIT_FUNC PyInit_foobar(void){
    PyObject *module;
    module = PyModule_Create(&foobar);
    return module;
}

#ifdef __cplusplus
}
#endif