Added missing Python packages in setup.py

setup.py

 #!/usr/bin/env python
 
 import os
-import sysconfig
+import re
 import sys
+import sysconfig
+import platform
+import subprocess
 try:
+    from distutils.version import LooseVersion
     from setuptools.command.build_ext import build_ext
     from setuptools import setup, Extension, Command, find_packages
-    from Cython.Build import cythonize
-    from Cython.Distutils import build_ext
+    #from Cython.Build import cythonize
+    #from Cython.Distutils import build_ext
 except:
+    from distutils.version import LooseVersion
     from distutils.command.build_ext import build_ext
     from distutils import setup, Extension, Command, find_packages
-    from Cython.Build import cythonize
-    from Cython.Distutils import build_ext
+    #from Cython.Build import cythonize
+    #from Cython.Distutils import build_ext
 
 # from http://www.benjack.io/2017/06/12/python-cpp-tests.html
 class CMakeExtension(Extension):
@@ -192,7 +197,7 @@ if __name__ == '__main__':
             libraries=['netcdf','tng_io','expat'],
             include_dirs = [
                 get_numpy_include(),
-                get_cmake_includes(),
+                #get_cmake_includes(),
                 'pymolfile/molfile',
                 'pymolfile/molfile/molfile_plugins/include',
                 'pymolfile/molfile/molfile_plugins/molfile_plugin/include',