https://github.com/lxml/lxml/commit/07db761f9f027d1814a43686cda6fca26e37a931
https://github.com/lxml/lxml/commit/c6b7e621e4696c02bf8f6ea423ffbbf2109748ab

From 07db761f9f027d1814a43686cda6fca26e37a931 Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Thu, 11 May 2023 10:29:02 +0200
Subject: [PATCH] Avoid using the deprecated "imp" module.

Closes https://bugs.launchpad.net/lxml/+bug/2018137
--- a/src/lxml/html/tests/test_html5parser.py
+++ b/src/lxml/html/tests/test_html5parser.py
@@ -1,5 +1,4 @@
 import os
-import imp
 try:
     from StringIO import StringIO
 except ImportError:                     # python 3
@@ -45,7 +44,10 @@ def find_module(self, fullname, path=None):
             return None
 
         def load_module(self, fullname):
-            mod = sys.modules.setdefault(fullname, imp.new_module(fullname))
+            fake_module = object()
+            fake_module.__qualname__ = fullname
+            fake_module.__name__ = fullname.rsplit('.', 1)[-1]
+            mod = sys.modules.setdefault(fullname, fake_module)
             mod.__file__, mod.__loader__, mod.__path__ = "<dummy>", self, []
             mod.__dict__.update(self.mocks[fullname])
             return mod

From c6b7e621e4696c02bf8f6ea423ffbbf2109748ab Mon Sep 17 00:00:00 2001
From: Stefan Behnel <stefan_ml@behnel.de>
Date: Thu, 11 May 2023 10:30:15 +0200
Subject: [PATCH] Avoid using the deprecated "imp" module.

Closes https://bugs.launchpad.net/lxml/+bug/2018137
--- a/src/lxml/html/tests/test_html5parser.py
+++ b/src/lxml/html/tests/test_html5parser.py
@@ -44,7 +44,8 @@ def find_module(self, fullname, path=None):
             return None
 
         def load_module(self, fullname):
-            fake_module = object()
+            class Cls: pass
+            fake_module = Cls()
             fake_module.__qualname__ = fullname
             fake_module.__name__ = fullname.rsplit('.', 1)[-1]
             mod = sys.modules.setdefault(fullname, fake_module)