diff --unified --recursive --text --new-file zope.testrunner-6.6.orig/setup.py zope.testrunner-6.6/setup.py
--- zope.testrunner-6.6.orig/setup.py	2024-10-19 19:15:29.338440291 +0200
+++ zope.testrunner-6.6/setup.py	2024-10-19 19:16:18.441607868 +0200
@@ -18,6 +18,7 @@
 ##############################################################################
 import os
 
+from setuptools import find_namespace_packages
 from setuptools import setup
 
 
@@ -68,10 +69,7 @@
     long_description=long_description,
     author='Zope Foundation and Contributors',
     author_email='zope-dev@zope.dev',
-    packages=[
-        "zope",
-        "zope.testrunner",
-    ],
+    packages=find_namespace_packages(where='src', exclude=['zope.testrunner.tests*']),
     package_dir={'': 'src'},
     classifiers=[
         "Development Status :: 5 - Production/Stable",
@@ -93,7 +91,6 @@
         "Topic :: Software Development :: Libraries :: Python Modules",
         "Topic :: Software Development :: Testing",
     ],
-    namespace_packages=['zope'],
     python_requires='>=3.8',
     install_requires=INSTALL_REQUIRES,
     extras_require=EXTRAS_REQUIRE,
@@ -103,6 +100,6 @@
         'distutils.commands': [
             'ftest = zope.testrunner.eggsupport:ftest'],
     },
-    include_package_data=True,
+    include_package_data=False,
     zip_safe=False,
 )
diff --unified --recursive --text --new-file zope.testrunner-6.6.orig/src/zope/__init__.py zope.testrunner-6.6/src/zope/__init__.py
--- zope.testrunner-6.6.orig/src/zope/__init__.py	2024-10-19 19:15:29.338440291 +0200
+++ zope.testrunner-6.6/src/zope/__init__.py	1970-01-01 01:00:00.000000000 +0100
@@ -1 +0,0 @@
-__import__('pkg_resources').declare_namespace(__name__)