Switch to PEP 420 native namespace.

.meta.toml

@@ -16,7 +16,7 @@ with-macos = false
 use-flake8 = true
 testenv-commands = [
     "pip install -U -e .[test]",
-    "coverage run -p -m unittest discover -s src {posargs}",
+    "coverage run -p -m unittest discover -s src/zope {posargs}",
     ]
 testenv-setenv = [
     "ZOPE_INTERFACE_STRICT_IRO=1",
@@ -61,6 +61,9 @@ additional-ignores = [
     "docs/_build/html/_static/scripts/*",
     ]
 
+[coverage-run]
+source = "src/zope"
+
 [github-actions]
 additional-install = [
     "- name: Install zope.interface",

CHANGES.rst

@@ -2,9 +2,11 @@
  Changes
 =========
 
-7.3 (unreleased)
+8.0 (unreleased)
 ================
 
+- Replace ``pkg_resources`` namespace with PEP 420 native namespace.
+
 - Drop support for Python 3.8.
 
 - Allow using newer ``setuptools`` version.

pyproject.toml

@@ -1,4 +1,3 @@
-# 
 # Generated from:
 # https://github.com/zopefoundation/meta/tree/master/config/c-code
 
@@ -11,7 +10,7 @@ build-backend = "setuptools.build_meta"
 
 [tool.coverage.run]
 branch = true
-source = ["zope.interface"]
+source = ["src/zope"]
 relative_files = true
 
 [tool.coverage.report]

setup.py

@@ -26,12 +26,11 @@
 from distutils.errors import DistutilsPlatformError
 
 from setuptools import Extension
-from setuptools import find_packages
 from setuptools import setup
 from setuptools.command.build_ext import build_ext
 
 
-version = '7.3.dev0'
+version = '8.0.dev0'
 
 
 class optional_build_ext(build_ext):
@@ -128,9 +127,10 @@ def read(*rnames):
         "Framework :: Zope :: 3",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],
-    packages=find_packages('src'),
+    # we need the following two parameters because we compile C code,
+    # otherwise only the shared library is installed:
     package_dir={'': 'src'},
-    namespace_packages=["zope"],
+    packages=['zope.interface', 'zope.interface.common'],
     cmdclass={
         'build_ext': optional_build_ext,
     },

src/zope/interface/tests/test_declarations.py

@@ -680,7 +680,7 @@ def __call__(self):
         foo.__name__ = 'foo'
         spec = self._callFUT(foo)
         self.assertEqual(spec.__name__,
-                         'zope.interface.tests.test_declarations.foo')
+                         'interface.tests.test_declarations.foo')
         self.assertIs(spec.inherit, foo)
         self.assertIs(foo.__implemented__, spec)
         self.assertIs(
@@ -696,7 +696,7 @@ class Foo:
 
         spec = self._callFUT(Foo)
         self.assertEqual(spec.__name__,
-                         'zope.interface.tests.test_declarations.Foo')
+                         'interface.tests.test_declarations.Foo')
         self.assertIs(spec.inherit, Foo)
         self.assertIs(Foo.__implemented__, spec)
         self.assertIsInstance(
@@ -1177,7 +1177,7 @@ class Foo:
         self.assertIs(returned, foo)
         spec = foo.__implemented__  # pylint:disable=no-member
         self.assertEqual(
-            spec.__name__, 'zope.interface.tests.test_declarations.?'
+            spec.__name__, 'interface.tests.test_declarations.?'
         )
         self.assertIsNone(spec.inherit,)
         self.assertIs(foo.__implemented__, spec)  # pylint:disable=no-member
@@ -1436,7 +1436,7 @@ def test__repr__directlyProvides_module(self):
         self.assertEqual(
             repr(provides),
             "directlyProvides(('zope.interface.tests.dummy', "
-            "'zope.interface.tests.test_declarations'), "
+            "'interface.tests.test_declarations'), "
             "IFoo, IBar)"
         )
 

src/zope/interface/tests/test_exceptions.py

@@ -40,7 +40,7 @@ def test___str__(self):
         self.assertEqual(
             str(dni),
             "An object has failed to implement interface "
-            "zope.interface.tests.test_exceptions.IDummy: "
+            "interface.tests.test_exceptions.IDummy: "
             "Does not declaratively implement the interface."
         )
 
@@ -49,7 +49,7 @@ def test___str__w_candidate(self):
         self.assertEqual(
             str(dni),
             "The object 'candidate' has failed to implement interface "
-            "zope.interface.tests.test_exceptions.IDummy: "
+            "interface.tests.test_exceptions.IDummy: "
             "Does not declaratively implement the interface."
         )
 
@@ -69,15 +69,15 @@ def test___str__(self):
         self.assertEqual(
             str(dni),
             'An object has failed to implement interface '
-            'zope.interface.tests.test_exceptions.IDummy: '
+            'interface.tests.test_exceptions.IDummy: '
             "The 'missing' attribute was not provided.")
 
     def test___str__w_candidate(self):
         dni = self._makeOne('candidate')
         self.assertEqual(
             str(dni),
             'The object \'candidate\' has failed to implement interface '
-            'zope.interface.tests.test_exceptions.IDummy: '
+            'interface.tests.test_exceptions.IDummy: '
             "The 'missing' attribute was not provided.")
 
 
@@ -166,7 +166,7 @@ def test__str__(self):
         self.assertEqual(
             str(dni),
             "The object 'target' has failed to implement interface "
-            "zope.interface.tests.test_exceptions.IDummy:\n"
+            "interface.tests.test_exceptions.IDummy:\n"
             "    The contract of 'aMethod' is violated because I said so\n"
             "    Regular exception"
         )
@@ -183,7 +183,7 @@ def test__repr__(self):
         self.assertEqual(
             repr(dni),
             "MultipleInvalid("
-            "<InterfaceClass zope.interface.tests.test_exceptions.IDummy>,"
+            "<InterfaceClass interface.tests.test_exceptions.IDummy>,"
             " 'target',"
             " (BrokenMethodImplementation('aMethod', 'I said so'),"
             " Exception('Regular', 'exception')))"

src/zope/interface/tests/test_interface.py

@@ -1175,7 +1175,7 @@ def test___hash___normal(self):
         iface = self._makeOne('HashMe')
         self.assertEqual(
             hash(iface),
-            hash(('HashMe', 'zope.interface.tests.test_interface'))
+            hash(('HashMe', 'interface.tests.test_interface'))
         )
 
     def test___hash___missing_required_attrs(self):

src/zope/interface/tests/test_ro.py

@@ -298,17 +298,17 @@ def _check_handler_complex_diamond(self):
 
         expected = """\
 Object <InterfaceClass {name}> has different legacy and C3 MROs:
-  Legacy RO (len=7)                 C3 RO (len=7; inconsistent=no)
-  ==================================================================
-    zope.interface.tests.test_ro.A    zope.interface.tests.test_ro.A
-    zope.interface.tests.test_ro.B    zope.interface.tests.test_ro.B
-  - zope.interface.tests.test_ro.E
-    zope.interface.tests.test_ro.C    zope.interface.tests.test_ro.C
-    zope.interface.tests.test_ro.D    zope.interface.tests.test_ro.D
-                                    + zope.interface.tests.test_ro.E
-    zope.interface.tests.test_ro.F    zope.interface.tests.test_ro.F
-    zope.interface.Interface          zope.interface.Interface""".format(
-            name="zope.interface.tests.test_ro.A"
+  Legacy RO (len=7)            C3 RO (len=7; inconsistent=no)
+  ========================================================
+    interface.tests.test_ro.A    interface.tests.test_ro.A
+    interface.tests.test_ro.B    interface.tests.test_ro.B
+  - interface.tests.test_ro.E
+    interface.tests.test_ro.C    interface.tests.test_ro.C
+    interface.tests.test_ro.D    interface.tests.test_ro.D
+                               + interface.tests.test_ro.E
+    interface.tests.test_ro.F    interface.tests.test_ro.F
+    zope.interface.Interface     zope.interface.Interface""".format(
+            name="interface.tests.test_ro.A"
         )
 
         self.assertEqual(

src/zope/interface/tests/test_sorting.py

@@ -59,6 +59,9 @@ def test_w_equal_names(self):
         # interfaces with equal names but different modules should sort by
         # module name
         from zope.interface.tests.m1 import I1 as m1_I1
+        # We need to import I1 again to get a module path starting with `zope`
+        # instead of `interfaces`.
+        from zope.interface.tests.test_sorting import I1
         iface_list = [I1, m1_I1]
         iface_list.sort()
         self.assertEqual(iface_list, [m1_I1, I1])

tox.ini

@@ -26,7 +26,7 @@ setenv =
     ZOPE_INTERFACE_STRICT_IRO=1
 commands =
     pip install -U -e .[test]
-    coverage run -p -m unittest discover -s src {posargs}
+    coverage run -p -m unittest discover -s src/zope {posargs}
     sphinx-build -b doctest -d {envdir}/.cache/doctrees docs {envdir}/.cache/doctest
 extras =
     test