fix and re-enable EKF pytests

EKF/swig/python/CMakeLists.txt

@@ -0,0 +1,40 @@
+
+# Use Python 3.5
+set(Python_ADDITIONAL_VERSIONS 3.5)
+find_package(PythonLibs 3 REQUIRED)
+find_package(PythonInterp 3 REQUIRED)
+include_directories(${PYTHON_INCLUDE_PATH})
+
+ # Find numpy include
+execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import numpy; print(numpy.get_include())" OUTPUT_VARIABLE NUMPY_INCLUDE_DIRS ERROR_QUIET)
+include_directories(${NUMPY_INCLUDE_DIRS})
+
+set(CMAKE_SWIG_FLAGS "")
+set_source_files_properties(../ecl_EKF.i PROPERTIES CPLUSPLUS ON)
+include_directories(../..)
+
+# Add swig module
+swig_add_module(ecl_EKF python ../ecl_EKF.i)
+swig_link_libraries(ecl_EKF ecl_EKF ${PYTHON_LIBRARIES})
+
+# Files to install with Python
+set(PYTHON_INSTALL_FILES
+	${CMAKE_CURRENT_BINARY_DIR}/ecl_EKF.py
+	${CMAKE_CURRENT_BINARY_DIR}/_ecl_EKF.so
+	)
+
+# Configure setup.py and copy to output directory
+set(SETUP_PY_IN ${CMAKE_CURRENT_SOURCE_DIR}/setup.py.in)
+set(SETUP_PY_OUT ${CMAKE_CURRENT_BINARY_DIR}/setup.py)
+configure_file(${SETUP_PY_IN} ${SETUP_PY_OUT})
+
+# Declare install target for python
+#install(TARGETS swig_example
+#        COMMAND "${PYTHON_EXECUTABLE} setup.py"
+#        COMPONENT swig-python)
+
+# Install target to call setup.py
+add_custom_target(install-python
+	DEPENDS _ecl_EKF
+	COMMAND python ${SETUP_PY_OUT} install
+	)

EKF/swig/python/setup.py.in

@@ -0,0 +1,35 @@
+import setuptools.command.install
+import shutil
+from distutils.sysconfig import get_python_lib
+
+
+class CompiledLibInstall(setuptools.command.install.install):
+    """
+    Specialized install to install to python libs
+    """
+
+    def run(self):
+        """
+        Run method called by setup
+        :return:
+        """
+        # Get filenames from CMake variable
+        filenames = '${PYTHON_INSTALL_FILES}'.split(';')
+
+        # Directory to install to
+        install_dir = get_python_lib()
+
+        # Install files
+        [shutil.copy(filename, install_dir) for filename in filenames]
+
+
+if __name__ == '__main__':
+    setuptools.setup(
+        name='ecl_EKF',
+        version='1.0.0-dev',
+        packages=['ecl_EKF'],
+        license='BSD 3.0',
+        author='PX4',
+        author_email='px4@px4.io',
+        cmdclass={'install': CompiledLibInstall}
+    )

EKF/swig/python/test.py

@@ -0,0 +1,3 @@
+import swig_example
+swig_example.swig_example_hello()
+swig_example.link_liba_hello()