import error in embedding python with boost python

Question

I have following code

#include <boost/python.hpp>

int main()
{
    Py_Initialize();
    namespace python = boost::python;
    try {
        python::object main = python::import("sample");
    } catch(...) {
        PyErr_Print();
        PyErr_Clear();
    }
}

I get following error:

ImportError: No module named sample

I put my sample.py at the same directory as this program.

When debugging import issues, it can be helpful to set the PYTHONVERBOSE environment variable to 2. This will cause Python to print where python is trying to import files. — Tanner Sansbury
– Tanner Sansbury, Commented Feb 7, 2014 at 21:03

Community · Accepted Answer · 2017-05-23 12:16:32Z

5

It's because python::import is not looking inside the current directory. I know two ways to solve it:

Set the PYTHONPATH to look inside your current directory (linux):

export PYTHONPATH=`pwd`:$PYTHONPATH

or...

Set the python search module path inside your code (also it provides a better explanation about the issue that you've found out): How does import work with Boost.Python from inside python files

edited May 23, 2017 at 12:16

CommunityBot

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answered Feb 7, 2014 at 16:45

Hugo Corrá

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