Unable to use third party module

[Ludovic Girardet]

Hello everybody,

First of all, thanks a lot for this great tool !!!

I experience trouble when I try to use external python third party module.

In this example :

#include <QCoreApplication>
#include "PythonQt.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    PythonQt::init();
    PythonQtObjectPtr pythonModule = PythonQt::self()->getMainModule();

    pythonModule.evalScript("import sys");
    qWarning() << pythonModule.evalScript("sys.version", Py_eval_input);
    pythonModule.evalScript("import imdb");
    qWarning() << pythonModule.evalScript("imdb.__doc__", Py_eval_input);

    return a.exec();
}

the first qWarning return the good information (Python 2.7.14). That inform that the "import sys" is working. But the second one return a invalid QVariant.
It seems that the "import imdb" was not successfull.

For information, imdb python module is well installed in the dist-packages python folder. And all is working when I use "import imdb" in a native python console.

Is there something particular to do to enable module import ?
Is the a way to debug what happens ?

Thanks in advance,

Slea18

Environnement :
- Debian Sid (x86_64)
- Default debian pythonqt package : PythonQt 3.2
- Qt version 5.9.1

[Ludovic Girardet]

Ok I found a (not the) solution :

PythonQt::init(PythonQt::ExternalHelp);

I don't know why but now it works.

[Florian Link]

You have to call PythonQt::init without the IgnoreSiteModule flag, otherwise you can only import standard Python modules, nothing from site-packages.