为Python创建C++扩展

Question

当我按照创建Python的C++扩展的说明进行操作时,在到达将C++项目转换为Python的扩展部分之前,我不会收到任何错误.

在我完成本节中的步骤并尝试构建解决方案之后,我偶然发现了这个问题:

1>------ Build started: Project: CppMain, Configuration: Debug Win32 ------
1>module.cpp
1>   Creating library C:\Users\$andu\Desktop\Cpp4Py\Debug\Cpp4Py.lib and object C:\Users\$andu\Desktop\Cpp4Py\Debug\Cpp4Py.exp
1>module.obj : error LNK2019: unresolved external symbol __imp__PyFloat_FromDouble referenced in function "struct _object * __cdecl tanh(struct _object *,struct _object *)" (?tanh@@YAPAU_object@@PAU1@0@Z)
1>module.obj : error LNK2019: unresolved external symbol __imp__PyFloat_AsDouble referenced in function "struct _object * __cdecl tanh(struct _object *,struct _object *)" (?tanh@@YAPAU_object@@PAU1@0@Z)
1>module.obj : error LNK2019: unresolved external symbol __imp__PyModule_Create2 referenced in function _PyInit_Cpp4Py
1>C:\Python\Anaconda3\libs\python3.lib : warning LNK4272: library machine type 'x64' conflicts with target machine type 'x86'
1>C:\Users\$andu\Desktop\Cpp4Py\Debug\Cpp4Py.pyd : fatal error LNK1120: 3 unresolved externals
1>Done building project "CppMain.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

从上面的消息中,我怀疑问题来自该指令集中的第2步.但我真的不知道该怎么处理.有什么建议？

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我使用x64 Windows 10.

Answer 1

我不确定.但您可以将项目的目标计算机类型更改为x64,然后重试.看到这个警告:

C:\ Python\Anaconda3\libs\python3.lib:警告LNK4272:库机器类型'x64'与目标机器类型'x86'冲突