[如果使用anaconda，则在导入boost / c ++时Python崩溃

Question

我正在尝试使用boost / python为python构建c ++引擎接口。在anaconda环境中，python导入失败。我将c ++剥离为以下内容（simplepython.cpp），但仍然失败：

#include <boost/python/module.hpp>
#include <boost/python/class.hpp>

namespace R3 {
  class Coordinate {
  public:
    Coordinate() : x(0), y(0), z(0) {}
    Coordinate(int _x, int _y, int _z) : x(_x), y(_y), z(_z) {}
    double getX() const { return x;}
    double getY() const { return y;}
    double getZ() const { return z;}
  private:
    double x, y, z;
  };
}

BOOST_PYTHON_MODULE(simplepython) {
  // An established convention for using boost.python.
  using namespace boost::python;
  Py_Initialize();

  class_<R3::Coordinate>("R3Coordinate", init<>())
    .def(init<int, int, int>())
    .def("getX", &R3::Coordinate::getX)
    .def("getY", &R3::Coordinate::getY)
    .def("getZ", &R3::Coordinate::getZ)
  ;
}

尝试：

$> python -c‘import sys;打印（sys.executable）;导入simplepython

...SystemError：_heapq的初始化未返回扩展模块

系统/版本详细信息：

Mac OS Mojave，10.14.6Python版本3.7.4，康达4.8.3C ++等：Apple clang版本11.0.0（clang-1100.0.33.17）

conda安装为：conda install -c anaconda boost

增强版本：boost-1.67.0

Build：

g ++ -I / opt / anaconda3 / include / python3.7m -I / opt / anaconda3 / include / python3.7m -I / opt / anaconda3 / include -O2 -fPIC -std = c ++ 11 -Iinclude -c -o objs / simplepython.o src / simplepython.cpp

g ++ -Wl，-rpath，/ opt / anaconda3 / lib -shared -o lib / simplepython.so objs / simplepython.o -L / opt / anaconda3 / lib -Llib -lpython3.7m -ldl -framework CoreFoundation -lboost_python37 -lboost_numpy37

完整结果：

/opt/anaconda3/bin/python
Error processing line 1 of /opt/anaconda3/lib/python3.7/site-packages/matplotlib-3.1.1-py3.7-nspkg.pth:

Fatal Python error: initsite: Failed to import the site module
Traceback (most recent call last):
  File "/opt/anaconda3/lib/python3.7/site.py", line 168, in addpackage
    exec(line)
  File "<string>", line 1, in <module>
  File "/opt/anaconda3/lib/python3.7/importlib/util.py", line 14, in <module>
    from contextlib import contextmanager
  File "/opt/anaconda3/lib/python3.7/contextlib.py", line 5, in <module>
    from collections import deque
  File "/opt/anaconda3/lib/python3.7/collections/__init__.py", line 24, in <module>
    import heapq as _heapq
  File "/opt/anaconda3/lib/python3.7/heapq.py", line 587, in <module>
    from _heapq import *
SystemError: initialization of _heapq did not return an extension module

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/opt/anaconda3/lib/python3.7/site.py", line 579, in <module>
    main()
  File "/opt/anaconda3/lib/python3.7/site.py", line 566, in main
    known_paths = addsitepackages(known_paths)
  File "/opt/anaconda3/lib/python3.7/site.py", line 349, in addsitepackages
    addsitedir(sitedir, known_paths)
  File "/opt/anaconda3/lib/python3.7/site.py", line 207, in addsitedir
    addpackage(sitedir, name, known_paths)
  File "/opt/anaconda3/lib/python3.7/site.py", line 178, in addpackage
    import traceback
  File "/opt/anaconda3/lib/python3.7/traceback.py", line 3, in <module>
    import collections
  File "/opt/anaconda3/lib/python3.7/collections/__init__.py", line 24, in <module>
    import heapq as _heapq
  File "/opt/anaconda3/lib/python3.7/heapq.py", line 587, in <module>
    from _heapq import *
SystemError: initialization of _heapq did not return an extension module

感谢您的帮助！

Answer 1

罪魁祸首似乎是Py_Initialize();