Close #9595: Deprecate setuptools integration

1 files changed, 5 insertions, 0 deletions

diff --git a/sphinx/setup_command.py b/sphinx/setup_command.py
index ab5441394..de769e64d 100644
--- a/sphinx/setup_command.py
+++ b/sphinx/setup_command.py
@@ -13,6 +13,7 @@
 
 import os
 import sys
+import warnings
 from distutils.cmd import Command
 from distutils.errors import DistutilsExecError
 from io import StringIO
@@ -20,6 +21,7 @@ from typing import Any, Dict
 
 from sphinx.application import Sphinx
 from sphinx.cmd.build import handle_exception
+from sphinx.deprecation import RemovedInSphinx70Warning
 from sphinx.util.console import color_terminal, nocolor
 from sphinx.util.docutils import docutils_namespace, patch_docutils
 from sphinx.util.osutil import abspath
@@ -140,6 +142,9 @@ class BuildDoc(Command):
             for builder in self.builder]
 
     def run(self) -> None:
+        warnings.warn('setup.py build_sphinx is deprecated.',
+                      RemovedInSphinx70Warning, stacklevel=2)
+
         if not color_terminal():
             nocolor()
         if not self.verbose:  # type: ignore