boost.python編譯及示範範例

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歡迎轉載，轉載請註明原文地址:http://blog.csdn.net/majianfei1023/article/details/46781581

linux編譯boost的連結:http://blog.csdn.net/majianfei1023/article/details/46761029

昨天編譯安裝好boost,今天準備使用boost.python寫個python調用c++代碼的範例，結果踩了非常多坑。

首先貼上代碼：

1.student.cpp,一個普通的c++類

#include <iostream>#include <string>using namespace std;class student{public:void setname(string str){name_ = str;}string getname(){return name_;}void setage(int age){age_ = age;}int getage(){return age_;}private:string name_;int age_;};

2.student2py.cpp,把c++封裝成python模組的代碼，使用了boost.python

#include <boost/python.hpp>#include "student.cpp"using namespace boost::python;BOOST_PYTHON_MODULE(example)  //python模組{class_<student>("student").def("setname",&student::setname).def("getname",&student::getname).def("setage",&student::setage).def("getage",&student::getage).add_property("name",&student::getname,&student::setname).add_property("age",&student::getage,&student::setage);}

3.makefile

example.so:student.o student2py.og++ student2py.o -o example.so -shared -fPIC -I/usr/include/python2.6 -I/home/mjf/lib/include -L/usr/lib/python2.6 -L/home/mjf/lib/lib -lboost_pythonstudent.o:g++ -c student.cpp -o student.o student2py.o:student.og++ -c student2py.cpp -o student2py.o -fPIC -I/usr/include/python2.6 -I/home/mjf/lib/includeclean:rm -rf student.o student2py.orm -rf example.so 

4.example.py,python調用*.so的示範範例代碼

import examplestu = example.student()stu.setname("mjf")stu.setage(25)print stu.nameprint stu.age

本來以為一帆風順。結果make的時候出了各種糾結的問題：

1.

../boost/python/detail/wrap_python.hpp:50:23: error: pyconfig.h: No such file or directory
 ./boost/python/detail/wrap_python.hpp:75:24: error: patchlevel.h: No such file or directory
 ./boost/python/detail/wrap_python.hpp:78:2: error: #error Python 2.2 or higher is required for 
 ./boost/python/detail/wrap_python.hpp:142:21: error: Python.h: No such file or directory
 ./boost/python/instance_holder.hpp:34: error: ‘PyObject’ has not been declared
 ./boost/python/instance_holder.hpp:41: error: expected ‘;’ before ‘(’ token
 ./boost/python/instance_holder.hpp:45: error: ‘PyObject’ has not been declared
 ./boost/python/detail/wrapper_base.hpp:21: error: expected initializer before ‘*’ token
 ./boost/python/detail/wrapper_base.hpp:23: error: expected initializer before ‘*’ token

各種查資料發現是python的問題。

缺少依賴庫 python-devel,要安裝一下：

sudo yum install python-devel

2.攻克了上面的問題。又發現了新的問題。

/usr/bin/ld: cannot find -lboost_python

一查，果然發現沒有libboost_python.so,安裝boost的時候我的確是全然安裝的。不知道怎麼搞的，沒裝好預計。

又一次裝了一下boost.python

./bootstrap.sh --prefix=/home/mjf/lib

sudo ./b2 --with-python install

大功告成,花了接近兩個小時解決一些問題。能夠成功用python調用example.so

最後：感謝stackoverflow,非常多問題的答案都能在上面找得到。

boost.python編譯及示範範例