我需要爲性能和CUDA利用率創建一個新的python模塊作爲c擴展。我已經嘗試了幾個教程,並沒有成功。下面是我的文件:構建Python C擴展
hellomodule.c
#include <Python.h>
static PyObject* say_hello(PyObject* self, PyObject* args)
{
const char* name;
if (!PyArg_ParseTuple(args, "s", &name))
return NULL;
printf("Hello %s!\n", name);
Py_RETURN_NONE;
}
static PyMethodDef HelloMethods[] =
{
{"say_hello", say_hello, METH_VARARGS, "Greet somebody."},
{NULL, NULL, 0, NULL}
};
PyMODINIT_FUNC inithello(void)
{
(void) Py_InitModule("hello", HelloMethods);
}
setuphello.py
from distutils.core import setup, Extension
module1 = Extension('hello', sources = ['hellomodule.c'])
setup (name = 'PackageName',
version = '1.0',
description = 'This is a demo package',
ext_modules = [module1])
這裏是我的結果爲python setuphello.py build
:
running build
running build_ext
building 'hello' extension
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Anaconda3\include -IC:\Anaconda3\include "-IC:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt" "-IC:\Program Files (x86)\IntelSWTools\Trace Analyzer and Collector\9.1.2.024\include" /Tchellomodule.c /Fobuild\temp.win32-3.5\Release\hellomodule.obj
hellomodule.c
hellomodule.c(23): warning C4013: 'Py_InitModule' undefined; assuming extern returning int
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\link.exe /nologo /INCREMENTAL:NO /LTCG /DLL /MANIFEST:EMBED,ID=2 /MANIFESTUAC:NO /LIBPATH:C:\Anaconda3\libs /LIBPATH:C:\Anaconda3\PCbuild\win32 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\LIB" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.10240.0\ucrt\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\lib\um\x86" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.10240.0\um\x86" /EXPORT:PyInit_hello build\temp.win32-3.5\Release\hellomodule.obj /OUT:build\lib.win32-3.5\hello.cp35-win32.pyd /IMPLIB:build\temp.win32-3.5\Release\hello.cp35-win32.lib
LINK : error LNK2001: unresolved external symbol PyInit_hello
build\temp.win32-3.5\Release\hello.cp35-win32.lib : fatal error LNK1120: 1 unresolved externals
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\link.exe' failed with exit status 1120
我已經看過別人有過的各種錯誤,並嘗試遵循他們的調試邏輯,但對於導致我的錯誤的幕後幕後發生的事情,我誠懇地不知所措。我正在使用Python 3.5 32位(Anaconda),因此一直在嘗試使用Visual C++構建工具及其打包終端進行編譯。但這並沒有什麼區別。有人能帶我走向正確的方向嗎?
官方文檔這個工作謝謝!我所要做的只是查看3.5文檔來解決這個問題,所以這是我的錯誤。非常感謝幫助我! – Dan