message: Try importing from setuptools's vendor
diff: @@ -12,7 +12,12 @@ from setuptools import setup, Extension
  from setuptools.command.build_ext import build_ext, copy_file
  from distutils import log
  +try:
  from packaging import version
  +except ImportError:
  + # Fallback on the packaging embedded in setuptools.
  + # This is not the cleanest solution but it enables to avoid an extra dependency.
  + from setuptools._vendor.packaging import version
  MIN_SETUPTOOLS_VERSION = "31.0.0"
  assert (version.parse(setuptools.__version__) >= version.parse(MIN_SETUPTOOLS_VERSION)), \
  