hello world python扩展在c ++使用boost？ [英] hello world python extension in c++ using boost?

问题描述

这里是我简单的第一次尝试使用boost的python扩展。有人可以帮助我理解导致编译错误的原因吗？

Here's my simple first attempt at a python extension using boost. Can someone help me to understand what's causing the compilation error?

#include <iostream>
using namespace std; 
void say_hello(const char* name) {
    cout << "Hello " <<  name << "!\n";
}

#include <boost/python/module.hpp>
#include <boost/python/def.hpp>
using namespace boost::python;

BOOST_PYTHON_MODULE(hello)
{
    def("say_hello", say_hello);
}

user @ host：〜$ g ++ main.cpp -o test.so

user@host:~$g++ main.cpp -o test.so

包含在/usr/include/boost/python/detail/prefix.hpp中的文件：13：0，从/usr/include/boost/python/module.hpp:8，从main.cpp：8：
/usr/include/boost/python/detail/wrap_python.hpp:50:23 ：致命错误：pyconfig.h：没有此类文件或目录编译终止。

In file included from /usr/include/boost/python/detail/prefix.hpp:13:0, from /usr/include/boost/python/module.hpp:8, from main.cpp:8: /usr/include/boost/python/detail/wrap_python.hpp:50:23: fatal error: pyconfig.h: No such file or directory compilation terminated.

推荐答案

/ usr /include/boost/python/detail/wrap_python.hpp:50:23：
致命错误：pyconfig.h：没有这样的文件
或目录编译终止。

/usr/include/boost/python/detail/wrap_python.hpp:50:23: fatal error: pyconfig.h: No such file or directory compilation terminated.

这一行说明了为什么它不工作。你的编译器不知道pyconfig.h文件在哪里。这里有两个选项：

This line tells exactly why it doesn't work. Your compiler doesn't know where is the pyconfig.h file. You have two options here:

1. 将pyconfig.h放在
   g ++知道的位置（即
   项目的目录）


2. 添加-I DIRECTORY（这是资本i，
   不小写L）标记为g ++，
   将使g ++搜索头文件的DIRECTORY
3. 
   

1. place pyconfig.h in a location that g++ knows about (i.e. your project's directory)
2. add -I DIRECTORY (this is capital i, not lowercase L) flag to g++ that will make g++ search DIRECTORY for header files

g ++ -I / path / to / my / include / files main.cpp

g++ -I /path/to/my/include/files main.cpp

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