more clean up for makehelper.py

Author: jeonghanlee

makehelper.py

@@ -26,6 +26,12 @@
         pass
     out = open(sys.argv[1], 'w')
 
+"""
+3.2,  sysconfig
+3.10, sysconfig.get_pathi
+3.10.13 distutils is deprecated.
+3.12, distutils was removed.
+"""
 if sys.version_info >= (3,10,):
     from sysconfig import get_config_var, get_path
     incdirs = [get_path("include")]
@@ -36,13 +42,12 @@
 libdir = get_config_var('LIBDIR') or ''
 
 have_np='NO'
+"""
+Since numpy 1.18, numpy.get_include() exists.
+"""
 try:
-    if sys.version_info >= (3,10,):
-        from numpy import get_include
-        numpy_dir = [get_include()]
-    else:
-        from numpy.distutils.misc_util import get_numpy_include_dirs
-        numpy_dir = get_numpy_include_dirs()
+    from numpy import get_include
+    numpy_dir = [get_include()]
     incdirs = numpy_dir+incdirs
     have_np='YES'
 except ImportError: