py.extension_module( 'aggregations', ['aggregations.pyx'], cython_args: ['-X always_allow_keywords=true'], include_directories: [inc_np, inc_pd], subdir: 'pandas/_libs/window', override_options : ['cython_language=cpp'], install: true ) py.extension_module( 'indexers', ['indexers.pyx'], cython_args: ['-X always_allow_keywords=true'], include_directories: [inc_np, inc_pd], subdir: 'pandas/_libs/window', install: true )