错误试图在C＆＃x2B;＆＃x2B中运行Python函数通过pybind11

Question

我正在尝试从C ++程序导出网格到VTU格式。为此，我决定使用meshio Python库，该库已经使用PYBIND11实现了所需的功能。

我正在运行的代码如下：

    py::scoped_interpreter guard{};

    std::vector<std::array<double, 3>> pointsConverted;
    pointsConverted.reserve(points.size());
    for (auto p : points) {
        pointsConverted.push_back(std::array{p[0], p[1], p[2]});
    }

    std::vector<std::array<int, 3>> trianglesConverted;
    trianglesConverted.reserve(triangles.size());
    for (auto triangle : triangles) {
        trianglesConverted.push_back(std::array{triangle[0], triangle[1], triangle[2]});
    }

    const auto pyPoints = py::cast(pointsConverted);
    const auto pyTriangles = py::cast(trianglesConverted);

    py::module::import("sys").attr("path").attr("append")("blablabla");
    const auto pyWrapper = py::module::import("VTKExporter");
    pyWrapper.attr("writeVTU")(pyPoints, pyTriangles);

如您所见，我将数据转换为STL类型，然后将此数据发送到Python中的一个函数，

import meshio


def writeVTU(points, triangles):
    print(points)
    print(triangles)
    meshio.Mesh(points, {"triangle": triangles}).write("test.vtu")

但是，由于以下错误，

[[-0.0, -0.0, -0.0], [-0.0, -0.0, 0.0], [-0.0, 0.0, -0.0], [-0.0, 0.0, 0.0], [0.0, -0.0, -0.0], [0.0, -0.0, 0.0], [0.0, 0.0, -0.0], [0.0, 0.0, 0.0]]                                                                               [48/2685]
[[4, 2, 0], [2, 7, 3], [6, 5, 7], [1, 7, 5], [0, 3, 1], [4, 1, 5], [4, 6, 2], [2, 6, 7], [6, 4, 5], [1, 3, 7], [0, 2, 3], [4, 0, 1]]                                                                                                                                  
CAPTURED EXCEPTION 'SystemError: Objects/structseq.c:481: bad argument to internal function                                                                     
                                                                                                                                                                                                                                            
At:                                                                                                                                                                                                                                         
  /usr/lib/python3.10/site-packages/numpy/core/overrides.py(6): <module>                                                                                                                                                                    
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap>(1079): _handle_fromlist                                                                                                                                                                                     
  /usr/lib/python3.10/site-packages/numpy/core/multiarray.py(10): <module>                                                                                                                                                                  
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap>(1079): _handle_fromlist                                                                                                                                                                                     
  /usr/lib/python3.10/site-packages/numpy/core/__init__.py(51): <module>                                                                                                                                                                    
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap>(1079): _handle_fromlist                                                                                                                                                                                     
  /usr/lib/python3.10/site-packages/numpy/__init__.py(144): <module>                                                                                                                                                                        
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  /usr/lib/python3.10/site-packages/meshio/ansys/_ansys.py(8): <module>                                                                                                                                                                     
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  /usr/lib/python3.10/site-packages/meshio/ansys/__init__.py(1): <module>                                                                                                                                                                   
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap_external>(883): exec_module                                                                                                                                                                                  
  <frozen importlib._bootstrap>(703): _load_unlocked                                                                                                                                                                                        
  <frozen importlib._bootstrap>(1006): _find_and_load_unlocked                                                                                                                                                                              
  <frozen importlib._bootstrap>(1027): _find_and_load                                                                                                                                                                                       
  <frozen importlib._bootstrap>(241): _call_with_frames_removed                                                                                                                                                                             
  <frozen importlib._bootstrap>(1079): _handle_fromlist
  /usr/lib/python3.10/site-packages/meshio/_cli/_ascii.py(4): <module>
  <frozen importlib._bootstrap>(241): _call_with_frames_removed
...

我也尝试直接从C ++运行此代码导入meshio带有py :: module :: import（“ meshio”）具有相同错误的模块。

我不明白这个错误或如何解决。任何想法都将受到欢迎。