fix

setup.py

@@ -20,13 +20,9 @@
 import os
 import subprocess
 
+import setuptools.command.install
 from setuptools import Command, setup
 
-# Setuptools replaces the `distutils` module in `sys.modules`.
-# pylint: disable=wrong-import-order
-import distutils.command.build  # isort:skip, pylint: disable=deprecated-module
-import distutils.command.clean  # isort:skip, pylint: disable=deprecated-module
-
 HOOKS = ["hooks/disable-units", "hooks/enable-units"]
 MAN_PAGES = ["bdebstrap.1"]
 
@@ -51,25 +47,14 @@ def run(self):
             subprocess.check_call(command)
 
 
-class BuildCommand(distutils.command.build.build):
+class BuildCommand(setuptools.command.install.install):
     """Custom build command (calling doc beforehand)."""
 
     def run(self):
         self.run_command("doc")
         super().run()
 
 
-class CleanCommand(distutils.command.clean.clean):
-    """Custom clean command (removing generated man pages)."""
-
-    def run(self):
-        for man_page in MAN_PAGES:
-            if os.path.exists(man_page):
-                self.announce(f"removing {man_page}", level=logging.INFO)
-                os.remove(man_page)
-        distutils.command.clean.clean.run(self)
-
-
 if __name__ == "__main__":
     with open("README.md", "r", encoding="utf-8") as fh:
         LONG_DESCRIPTION = fh.read()
@@ -97,7 +82,7 @@ def run(self):
             "Programming Language :: Python :: 3.8",
             "Programming Language :: Python :: 3.9",
         ],
-        cmdclass={"doc": DocCommand, "build": BuildCommand, "clean": CleanCommand},
+        cmdclass={"doc": DocCommand, "build": BuildCommand},
         install_requires=["ruamel.yaml"],
         scripts=["bdebstrap"],
         py_modules=[],