【C++】Debug版的C/C++Python扩展模块链接错误：ErrorLNK1104cannotopenfile'python27_d.lib

Debug 版的 C/C&＃43;&＃43; Python 扩展模块链接错误&＃xff1a;Error LNK1104 cannot open file &＃39;python27_d.lib&＃39;

环境配置

&＃xff08;1&＃xff09;python的lib 以及头文件分别加到vc的include/lib directories中去。

&＃xff08;2&＃xff09;写完编译后出现找不到python33_d.lib 错误&＃xff0c;出现这个错误的原因是&＃xff1a;python_d.lib是 库的调试后形式&＃xff0c;当我们以debug模式编译工程时&＃xff0c;python就用这个lib文件&＃xff0c;但是这个文件是不可用 的。对于这点&＃xff0c;最快的办法就是强制要求python在任何情况下都是用非调试版本&＃xff0c;就可以了。

所以要做的是&＃xff1a;

• 修改python头文件&＃xff08;位置&＃xff1a;C:\Python27\include&＃xff09;pyconfig.h的配置&＃xff0c;修改指向调试库文件的参数&＃xff0c;由

  # if defined(_DEBUG)
# pragma comment(lib,"python33_d.lib")
# elif defined(Py_LIMITED_API)
# pragma comment(lib,"python3.lib")
# else
# pragma comment(lib,"python33.lib")
# endif /* _DEBUG */

  修改为&＃xff1a;

• # if defined(_DEBUG)
# pragma comment(lib,"python33.lib")
# elif defined(Py_LIMITED_API)
# pragma comment(lib,"python3.lib")
# else
# pragma comment(lib,"python33.lib")
# endif /* _DEBUG */

  (3)在Visual Studio中编译时必须注意&＃xff0c;若Python为64bit而VS C&＃43;&＃43; Project Config里的platform是32bit&＃xff0c;会报错&＃xff1a;&＃xff08;我就在这里入坑了&＃xff09;

• Error 1 error LNK2019: unresolved external symbol __imp__Py_Finalize referenced in function _main
Error 2 error LNK2019: unresolved external symbol __imp__PyEval_CallObjectWithKeywords referenced in function _main
Error 3 error LNK2019: unresolved external symbol __imp__PyObject_GetAttrString referenced in function _main
Error 4 error LNK2019: unresolved external symbol __imp__PyImport_ImportModule referenced in function _main
Error 5 error LNK2019: unresolved external symbol __imp__Py_Initialize referenced in function _main
Error 6 error LNK1120: 5 unresolved externals

  注意修改自己的platform&＃xff01;&＃xff01;&＃xff01;

• 

记得配置好环境变量&＃xff01;