Helps projects building Python/C++ extensions for Bob
This package provides a pkg-config bridge for Python/C++ extensions for Bob. You use this package by including it in the setup_requires field of your setup.py file.
Building with zc.buildout is possible using the develop recipe in xbob.buildout. Follow the instructions described on that package for this recipe.
Preparing for C++ Compilation
Creating C++/Python bindings should be trivial. Firstly, edit your setup.py so that you include the following:
from xbob.extension import Extension ... setup( name="xbob.myext", version="1.0.0", ... setup_requires=[ 'xbob.extension', ], ... ext_modules=[ Extension("xbob.myext._myext", [ "xbob/myext/ext/file1.cpp", "xbob/myext/ext/file2.cpp", "xbob/myext/ext/main.cpp", ], pkgconfig = [ #bob modules you depend on 'bob-math', 'bob-sp', ], include_dirs = [ #optionally, include directories "xbob/myext/ext/headers/", ], ), ... #add more extensions if you wish ], ... )
These modifications will allow you to compile extensions that are linked against the named pkg-config modules. You can specify the modules of Bob you want to link against. You don’t have to specify bob-python, which is automatically added. Furthermore, you can specify any pkg-config module and that will be linked in (for example, opencv). Other modules and options can be set manually using the standard options for python extensions. To hook-in the building on the package through zc.buildout, add the following section to your buildout.cfg:
[xbob.myext] recipe = xbob.buildout:develop
If you need to build multiple eggs, you will need one entry per project on your buildout.cfg. This includes, possibly, dependent projects. Currently, zc.buildout ignores the setup_requires entry on your setup.py file. The recipe above creates a new interpreter that hooks that package in and builds the project considering variables like prefixes into consideration.
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