hello world python extension in c++ using boost?

Question

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

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.

Łukasz Milewski · Accepted Answer · 2011-05-15 11:06:54Z

14

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

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:

place pyconfig.h in a location that g++ knows about (i.e. your project's directory)
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

answered May 15, 2011 at 11:06

Łukasz Milewski

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Mogsdad · Accepted Answer · 2015-11-10 15:09:51Z

0

If you face this problem in your NetBeans then just add "/usr/include/python 2.7/" folder in your NetBeans additional include option. You will get this additional include option in properties.

edited Nov 10, 2015 at 15:09

Mogsdad

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answered Sep 24, 2013 at 16:29

Mohiul Alam

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Comments

Danzan · Accepted Answer · 2011-05-15 07:52:17Z

-3

You need to place pyconfig.h in same directory

answered May 15, 2011 at 7:52

Danzan

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