About how to build and install pyqpbo on Macos

[gaoyangyiqiao]

I encountered quite a lot problem with opengm, so I come back here..

1.run python setup.py build_ext --inplace
1.You will got some errors, change the setup.py file: delete the QPBOinstall.
3.Go to the QPBO-v1.3.src and find the instance.ini, change it to:

#include "QPBO.h"

#ifdef _MSC_VER
#pragma warning(disable: 4661)
#endif



template <> 
	inline void QPBO<int>::get_type_information(char*& type_name, char*& type_format)
{
	type_name = "int";
	type_format = "d";
}

template <> 
	inline void QPBO<float>::get_type_information(char*& type_name, char*& type_format)
{
	type_name = "float";
	type_format = "f";
}

template <> 
	inline void QPBO<double>::get_type_information(char*& type_name, char*& type_format)
{
	type_name = "double";
	type_format = "Lf";
}
// Instantiations
template class QPBO<int>;
template class QPBO<float>;
template class QPBO<double>;

which moves the instantiation to the bottom.
4.run python setup.py build_ext --inplace again.
And now you can use it normally I think. Copy the pyqpbo dir to your own project and then you'll be able to:
from pyqpbo import binary_grid, alpha_expansion_grid, binary_graph

[tomclavmaster]

Hi, can you be a little more clear with what you mean when you say: delete the QPBOInstall in setup.py. I've been having this issue and this guide is very helpful!

[gaoyangyiqiao]

@tomclavmaster delete those lines in setup.py:

class QPBOInstall(build_ext):
    def run(self):
        # locate urlretrieve: with Python3, this has been moved to urllib.request
        import urllib
        if hasattr(urllib, "urlretrieve"):
            urlretrieve = urllib.urlretrieve
        else:
            import urllib.request
            urlretrieve = urllib.request.urlretrieve
            # fetch and unpack the archive. Not the nicest way...
        urlretrieve("http://pub.ist.ac.at/~vnk/software/QPBO-v1.3.src.tar.gz",
                    "QPBO-v1.3.src.tar.gz")
        tfile = tarfile.open("QPBO-v1.3.src.tar.gz", 'r:gz')
        tfile.extractall('.')
        build_ext.run(self)

Since you have changed the file in QPBO, while if you run setup.py these lines will download QPBO again, which will make your changing useless.

[andrewdavis3]

Steps 1-3 worked well on Mac OS Big Sur, but running pip install . --use-feature=2020-resolver made it so I didn't have to copy the pyqpbo dir to my project.