3

所以我正在用 C 语言编写一个 python 扩展模块，并试图为我的 64 位 Python 构建编译它。在对 MinGW 进行了一番抨击之后，我进行了一些谷歌搜索，发现 MinGW 不做 64 位扩展模块，所以我用 Win7 SDK 和 DISTUTILS_USE_SDK 和 MSSdk 设置了 Visual C++ 2008 Express 都等于 1 为在这个问题的答案中。

我终于让 Distutils 找到了编译器，但是当我编译扩展时，我得到了这个输出：

core.obj : error LNK2019: unresolved external symbol __imp__PyErr_NoMemory refer
enced in function "int __cdecl handleErrors(int)" (?handleErrors@@YAHH@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyErr_SetString refe
renced in function "int __cdecl handleErrors(int)" (?handleErrors@@YAHH@Z)
core.obj : error LNK2019: unresolved external symbol _opus_encoder_destroy refer
enced in function "void __cdecl OpusEncoder_dealloc(struct OpusEncoderObject *)"
 (?OpusEncoder_dealloc@@YAXPAUOpusEncoderObject@@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__Py_BuildValue refere
nced in function "int __cdecl OpusEncoder_init(struct OpusEncoderObject *,struct
 _object *,struct _object *)" (?OpusEncoder_init@@YAHPAUOpusEncoderObject@@PAU_o
bject@@1@Z)
core.obj : error LNK2019: unresolved external symbol _opus_encoder_create refere
nced in function "int __cdecl OpusEncoder_init(struct OpusEncoderObject *,struct
 _object *,struct _object *)" (?OpusEncoder_init@@YAHPAUOpusEncoderObject@@PAU_o
bject@@1@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyArg_ParseTupleAndK
eywords referenced in function "int __cdecl OpusEncoder_init(struct OpusEncoderO
bject *,struct _object *,struct _object *)" (?OpusEncoder_init@@YAHPAUOpusEncode
rObject@@PAU_object@@1@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyTuple_Pack referen
ced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncoderO
bject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderObj
ect@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyString_FromString
referenced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusE
ncoderObject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEnc
oderObject@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol _opus_encode_float referenc
ed in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncoderOb
ject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderObje
ct@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyFloat_AsDouble ref
erenced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEnco
derObject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncode
rObject@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyType_IsSubtype ref
erenced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEnco
derObject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncode
rObject@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyFloat_Type referen
ced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncoderO
bject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderObj
ect@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol _opus_encode referenced in
function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncoderObject *
,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderObject@@PA
U1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyErr_Occurred refer
enced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncode
rObject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderO
bject@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyInt_AsLong referen
ced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEncoderO
bject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncoderObj
ect@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyArg_ParseTuple ref
erenced in function "struct _object * __cdecl OpusEncoder_encode(struct OpusEnco
derObject *,struct _object *)" (?OpusEncoder_encode@@YAPAU_object@@PAUOpusEncode
rObject@@PAU1@@Z)
core.obj : error LNK2019: unresolved external symbol __imp__PyModule_AddObject r
eferenced in function _initopys
core.obj : error LNK2019: unresolved external symbol __imp__PyErr_NewException r
eferenced in function _initopys
core.obj : error LNK2019: unresolved external symbol __imp__Py_InitModule4 refer
enced in function _initopys
core.obj : error LNK2019: unresolved external symbol __imp__PyType_Ready referen
ced in function _initopys
core.obj : error LNK2019: unresolved external symbol __imp__PyType_GenericNew re
ferenced in function _initopys
core.obj : error LNK2019: unresolved external symbol __imp__Py_Initialize refere
nced in function _main
core.obj : error LNK2019: unresolved external symbol __imp__Py_SetProgramName re
ferenced in function _main
build\lib.win-amd64-2.7\opys.pyd : fatal error LNK1120: 23 unresolved externals
error: command '"C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\link.
exe"' failed with exit status 1120

在用头撞了3天后，我有点撞墙了，有什么建议吗？

4

4 回答 4

3

根据我的经验，除了完整版的 Visual C++之外，使用 Microsoft 提供的任何东西在 Windows 上构建 python 模块是非常困难的。此外，Visual Studio 的版本必须与用于构建 Python 发行版的版本相匹配。

例如，使用 Python 2.7.1 的官方二进制 dist：

C:\Python27>python
Python 2.7.1 (r271:86832, Nov 27 2010, 18:30:46) [MSC v.1500 32 bit (Intel)] on win32
...

根据我的计算机上的 Python 是用什么版本的 Visual Studio 编译的？，这意味着 python 是用 Visual C++ 2008 构建的。

对于每个版本的 Visual Studio，都有对应的 Windows SDK 版本，因此如果您想尝试使用免费工具使其工作，您需要找到并安装正确的Windows SDK 版本。我认为这可能是http://www.microsoft.com/en-us/download/details.aspx?id=24826，但我不是 100% 确定。

于 2012-09-25T20:06:37.907 回答
0

我有同样的错误。从https://github.com/nwcell/psycopg2-windows安装 psycopg2解决了我的问题

于 2014-07-25T22:06:45.870 回答
0

1、必须确保python x64、oracle客户端x64（win7 x64），所有版本必须匹配。

2、也许你必须“为python2.7安装vc++”

于 2016-12-21T02:07:27.960 回答
0

就我而言，更改 Visual Studio 中的项目属性（为 x64 而不是 x86 构建解决方案）有所帮助，因为我使用的 Python 版本是 64 位。两个版本应匹配。

于 2016-04-21T09:34:30.873 回答