Update setup.py - - use pyximport

Author: thierrymoudiki

setup.py

@@ -222,7 +222,7 @@ def setup_package():
                     setup_requires=["numpy>=1.13.0"],
                     package_data={'': ['*.pxd']},
                     packages=find_packages(),                    
-                    ext_modules=cythonize_ext_modules,
+                    #ext_modules=cythonize_ext_modules,
                     **extra_setuptools_args)