misc: replace deprecated distutils features by setuptols or stdlib (#72515)

setup.py

@@ -1,16 +1,22 @@
 #! /usr/bin/env python3
 
 import os
+import shutil
 import subprocess
 import sys
-from distutils.cmd import Command
-from distutils.command.build import build as _build
-from distutils.command.sdist import sdist
-from distutils.errors import CompileError
-from distutils.spawn import find_executable
+
+try:
+    from setuptools import Command
+    from setuptools.command.build import build as _build
+    from setuptools.errors import CompileError
+except ImportError:
+    from distutils.cmd import Command
+    from distutils.command.build import build as _build
+    from distutils.errors import CompileError
 
 from setuptools import find_packages, setup
 from setuptools.command.install_lib import install_lib as _install_lib
+from setuptools.command.sdist import sdist as _sdist
 
 local_cfg = None
 if os.path.exists('wcs/wcs_cfg.py'):
@@ -55,7 +61,7 @@ class compile_scss(Command):
         pass
 
     def run(self):
-        sass_bin = find_executable('sassc')
+        sass_bin = shutil.which('sassc')
         if not sass_bin:
             raise CompileError('sassc is required but was not found.')
 
@@ -85,7 +91,7 @@ class install_lib(_install_lib):
         _install_lib.run(self)
 
 
-class eo_sdist(sdist):
+class eo_sdist(_sdist):
     def run(self):
         if os.path.exists('VERSION'):
             os.remove('VERSION')
@@ -93,7 +99,7 @@ class eo_sdist(sdist):
         version_file = open('VERSION', 'w')
         version_file.write(version)
         version_file.close()
-        sdist.run(self)
+        _sdist.run(self)
         if os.path.exists('VERSION'):
             os.remove('VERSION')