[3.12] Docs: Avoid a DeprecationWarning in pyspecific.py when running with Sphinx >=6.1 (GH-105886) (#106010)

Docs: Avoid a DeprecationWarning in `pyspecific.py` when running with Sphinx >=6.1 (GH-105886)
(cherry picked from commit a72683ba8e)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>

Doc/tools/extensions/pyspecific.py

@@ -14,29 +14,27 @@ import io
 from os import getenv, path
 from time import asctime
 from pprint import pformat
+
+from docutils import nodes, utils
 from docutils.io import StringOutput
 from docutils.parsers.rst import Directive
 from docutils.utils import new_document
-
-from docutils import nodes, utils
-
 from sphinx import addnodes
 from sphinx.builders import Builder
-try:
-    from sphinx.errors import NoUri
-except ImportError:
-    from sphinx.environment import NoUri
+from sphinx.domains.python import PyFunction, PyMethod
+from sphinx.errors import NoUri
 from sphinx.locale import _ as sphinx_gettext
-from sphinx.util import status_iterator, logging
+from sphinx.util import logging
 from sphinx.util.docutils import SphinxDirective
 from sphinx.util.nodes import split_explicit_title
 from sphinx.writers.text import TextWriter, TextTranslator
 
 try:
-    from sphinx.domains.python import PyFunction, PyMethod
+    # Sphinx 6+
+    from sphinx.util.display import status_iterator
 except ImportError:
-    from sphinx.domains.python import PyClassmember as PyMethod
-    from sphinx.domains.python import PyModulelevel as PyFunction
+    # Deprecated in Sphinx 6.1, will be removed in Sphinx 8
+    from sphinx.util import status_iterator
 
 
 ISSUE_URI = 'https://bugs.python.org/issue?@action=redirect&bpo=%s'