CODEWITHSUNDEEP
pythonc++pybind11
Yorch
Yorch

Reputation: 109

How to bind using pybind11?

This is the structure of my program:

enter image description here

I'm trying to bind my program in C++ with a GUI in python. I'm using pybind11 and I have a python_binding.cpp file for the bind and some ".h" and ".cpp" with the methods in other directories. I include the ".h" files but somehow the python_binding.cpp it's not able to recognize them.

The file config.cpp only has one void method, "cargar_configuracion()" and this is how it looks like in the binding:

#include "Ejemplo/config.h"

PYBIND11_MODULE(Example, m) {
m.doc() = "Binding"; // optional module docstring


m.def("cargar_configuracion", &cargar_configuracion);

The result of this is the following error: 

undefined reference to `cargar_configuracion()'

What am I doing wrong? Should I have my .cpp and .h with the binding.cpp in the same directory?

Thanks in advance!

Upvotes: 0

Views: 508

Answers (2)

ChrisD
ChrisD

Reputation: 967

Your pybind11 looks fine, this is a linker error. It looks like config.cpp is in another project within your solution, and is being built within a separate executable. You have two options here, either copy config.cpp into the same directory or reconfigure Ejemplo to be a static library and specify it as a dependency in the properties of the python wrapper project.

Upvotes: 2

Stanley
Stanley

Reputation: 2814

Change your code from:

bViewResult = QtWidgets.QPushButton('View Results', self) 
bViewResult.clicked.connect(self.openCSV)

to: 

bViewResult = QtWidgets.QPushButton('View Results', self)
bViewResult.clicked.connect(cargar_configuracion())

Upvotes: 0

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