Writing python extension in C/C++ with SWIG under Windows

參考網址： [Python] Windows底下 使用SWIG呼叫C/C++的function


Sample Project [Download]

1. 環境設定

注意：x64版本 python 在 linking 時會出問題，建議使用 x86 版本

• OS: Windows 8.1
• Visual Studio 2013 Update4
• python-3.3.5.msi (x86)
• swigwin-3.0.2

2. 設定VC的Include, Library, Execute path

Include

Project 右鍵 Properties |  Configuration Properties | C/C++

• Additional Include Directories: C:\Python33\include

Library

Project 右鍵 Properties |  Configuration Properties | Linker

• Additional Library Directories: C:\Python33\libs

Executable

Project 右鍵 Properties |  Configuration Properties | VC++ Directories

• Executable Directories: C:\swigwin-3.0.2

3. 建立C/C++ DLL Project

1. New Project...
2. Templates > Visual C++ > Win32 > Win32 Console Application
3. Project name: Sample
4. OK
5. Next
6. 選擇 DLL, Empty project
7. Finish

 Project Property | C/C++ | Precompiled Headers | Precompiled Header
切換成 "Not Using Precompiled Headers"

4. 撰寫C/C++的API - Sample.h, Sample.cpp

Sample.h

  #include "Python.h"

  int AddOne(int n);
  int Sqrt(int n);
  PyObject* SqrtInPyObj(PyObject* obj);

Sample.cpp

 #include "Sample.h"

 int AddOne(int n)
 {
  return n+1;
 }

 int Sqrt(int n)
 {
  return n*n;
 }

 PyObject* SqrtInPyObj(PyObject* obj)
 {
  int n = PyLong_AsLong(obj);
  return Py_BuildValue("i", n*n);
 }

5. 設置interface檔 - Sample.i

Project 右鍵 Properties |  Configuration Properties | Build Events | Pre-Build Event

  swig.exe -c++ -python -o $(ProjectDir)\Sample_wrap.cxx  $(ProjectDir)Sample.i

Sample.i範例

  %module Sample 

  %{
  #include "Sample.h"
  %}

  %include "Sample.h"

其餘按照參考網址