bpo-30939: Avoid Sphinx deprecation warning in docs build. (#2721)

Doc/tools/extensions/pyspecific.py

@@ -15,6 +15,7 @@ from os import path
 from time import asctime
 from pprint import pformat
 from docutils.io import StringOutput
+from docutils.parsers.rst import Directive
 from docutils.utils import new_document
 
 from docutils import nodes, utils
@@ -23,7 +24,6 @@ from sphinx import addnodes
 from sphinx.builders import Builder
 from sphinx.locale import translators
 from sphinx.util.nodes import split_explicit_title
-from sphinx.util.compat import Directive
 from sphinx.writers.html import HTMLTranslator
 from sphinx.writers.text import TextWriter
 from sphinx.writers.latex import LaTeXTranslator