SWIG 在 Windows 中生成 C++ Python3 包装器导致断言 MSVC 2017

Question

使用 SWIG 围绕 C++ 类生成包装器会在运行时导致奇怪的断言：Assertion failed!Program: C:\Python37\python37_d.dllFile: c:\_work\4\s\objects\typeobject.cLine: 3634Expression: PyTuple_Check(args)For information on how your program can cause an assertionfailure, see the Visual C++ documentation on asserts(Press Retry to debug the application - JIT must be enabled)如果在弹出的对话框上点击忽略，一切似乎都正常。我创建了一个示例程序来尝试复制问题并遇到了同样的问题：主程序#include "testwrapper.h"#pragma push_macro("slots")#undef slots#include "Python.h"#pragma pop_macro("slots")#include "SwigModules/generated/swig_runtime.h"PyObject * ConvertToWrapper(SwigInterface * instance){    swig_type_info * pTypeInfo = SWIG_TypeQuery("SwigInterface *");    PyObject* obj = SWIG_NewPointerObj(instance, pTypeInfo, 0); <- issue occurs here    return obj;}TestWrapper * wrapper = new TestWrapper();void TestSwig(){  Py_Initialize();  PyRun_SimpleString("import test_module");  ConvertToWrapper(wrapper);  Py_Finalize();}int main(int argc, char *argv[]){  TestSwig();  return 0;}测试包装器.h#pragma once#include "swiginterface.h"class TestWrapper : public  SwigInterface{public:  TestWrapper(){}  virtual ~TestWrapper(){}  virtual void Test();};swiginterface.h#pragma onceclass SwigInterface{public:  virtual ~SwigInterface(){}  virtual void Test() = 0;};test_module.i（swig 接口文件）%module test_module%{#include "../swiginterface.h"%}%include "../SwigInterface.h"%inline %{  SwigInterface * test;%}setup_function (python)from distutils.core import setup, Extensionsetup(name="test_module",      py_modules=['test_module'],      ext_modules=[Extension("_test_module",                     ["test_module.i"],                     extra_compile_args=["-DSWIG_TYPE_TABLE=test_module"],                     swig_opts=["-c++", "-py3"],                  )])

Answer 1

或者升级到 SWIG 4.0，它有一个修复。

Answer 2

为了解决这个问题，我需要从 Python3.7 降级到 Python3.6