Python pkg_resources 模块，_namespace_packages() 实例源码

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def run_tests(self):
        import unittest

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if sys.version_info >= (3,) and getattr(self.distribution, 'use_2to3', False):
            module = self.test_args[-1].split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        loader_ep = EntryPoint.parse("x="+self.test_loader)
        loader_class = loader_ep.load(require=False)
        cks = loader_class()
        unittest.main(
            None, None, [unittest.__file__]+self.test_args,
            testLoader = cks
        )

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setup_method(self, method):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def teardown_method(self, method):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        assert "pkg1" in pkg_resources._namespace_packages
        # attempt to import pkg2 from site-pkgs2
        import pkg1.pkg2
        # check the _namespace_packages dict
        assert "pkg1.pkg2" in pkg_resources._namespace_packages
        assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
        # check the __path__ attribute contains both paths
        expected = [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"),
        ]
        assert pkg1.pkg2.__path__ == expected

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
                os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
                os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2") ])

def setup_method(self, method):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def teardown_method(self, method):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        assert "pkg1" in pkg_resources._namespace_packages
        # attempt to import pkg2 from site-pkgs2
        import pkg1.pkg2
        # check the _namespace_packages dict
        assert "pkg1.pkg2" in pkg_resources._namespace_packages
        assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
        # check the __path__ attribute contains both paths
        expected = [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"),
        ]
        assert pkg1.pkg2.__path__ == expected

def patched_path(self, tmpdir):
        """
        Patch sys.path to include the 'site-pkgs' dir. Also
        restore pkg_resources._namespace_packages to its
        former state.
        """
        saved_ns_pkgs = pkg_resources._namespace_packages.copy()
        saved_sys_path = sys.path[:]
        site_pkgs = tmpdir.mkdir('site-pkgs')
        sys.path.append(str(site_pkgs))
        try:
            yield
        finally:
            pkg_resources._namespace_packages = saved_ns_pkgs
            sys.path = saved_sys_path

def test_two_levels_deep(self, symlinked_tmpdir):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        real_tmpdir = symlinked_tmpdir.realpath()
        tmpdir = symlinked_tmpdir
        sys.path.append(str(tmpdir / 'site-pkgs2'))
        site_dirs = tmpdir / 'site-pkgs', tmpdir / 'site-pkgs2'
        for site in site_dirs:
            pkg1 = site / 'pkg1'
            pkg2 = pkg1 / 'pkg2'
            pkg2.ensure_dir()
            (pkg1 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
            (pkg2 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
        import pkg1
        assert "pkg1" in pkg_resources._namespace_packages
        # attempt to import pkg2 from site-pkgs2
        import pkg1.pkg2
        # check the _namespace_packages dict
        assert "pkg1.pkg2" in pkg_resources._namespace_packages
        assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
        # check the __path__ attribute contains both paths
        expected = [
            str(real_tmpdir / "site-pkgs" / "pkg1" / "pkg2"),
            str(real_tmpdir / "site-pkgs2" / "pkg1" / "pkg2"),
        ]
        assert pkg1.pkg2.__path__ == expected

def run_tests(self):
        " Run coverage on unit test "
        # need to import here cause we are in a venv
        import six
        from coverage import Coverage

        coverage = Coverage()
        coverage.start()

        # Purge modules under test from sys.modules. The test loader will
        # re-import them from the build location. Required when 2to3 is used
        # with namespace packages.
        if six.PY3 and getattr(self.distribution, 'use_2to3', False):
            module = self.test_suite.split('.')[0]
            if module in _namespace_packages:
                del_modules = []
                if module in sys.modules:
                    del_modules.append(module)
                module += '.'
                for name in sys.modules:
                    if name.startswith(module):
                        del_modules.append(name)
                list(map(sys.modules.__delitem__, del_modules))

        unittest_main(
            None, None, self._argv,
            testLoader=self._resolve_as_ep(self.test_loader),
            testRunner=self._resolve_as_ep(self.test_runner),
            exit=False,
        )

        coverage.stop()
        coverage.save()
        coverage.report(show_missing=False)

def patched_path(self, tmpdir):
        """
        Patch sys.path to include the 'site-pkgs' dir. Also
        restore pkg_resources._namespace_packages to its
        former state.
        """
        saved_ns_pkgs = pkg_resources._namespace_packages.copy()
        saved_sys_path = sys.path[:]
        site_pkgs = tmpdir.mkdir('site-pkgs')
        sys.path.append(str(site_pkgs))
        try:
            yield
        finally:
            pkg_resources._namespace_packages = saved_ns_pkgs
            sys.path = saved_sys_path

def test_two_levels_deep(self, symlinked_tmpdir):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        real_tmpdir = symlinked_tmpdir.realpath()
        tmpdir = symlinked_tmpdir
        sys.path.append(str(tmpdir / 'site-pkgs2'))
        site_dirs = tmpdir / 'site-pkgs', tmpdir / 'site-pkgs2'
        for site in site_dirs:
            pkg1 = site / 'pkg1'
            pkg2 = pkg1 / 'pkg2'
            pkg2.ensure_dir()
            (pkg1 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
            (pkg2 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
        import pkg1
        assert "pkg1" in pkg_resources._namespace_packages
        # attempt to import pkg2 from site-pkgs2
        import pkg1.pkg2
        # check the _namespace_packages dict
        assert "pkg1.pkg2" in pkg_resources._namespace_packages
        assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
        # check the __path__ attribute contains both paths
        expected = [
            str(real_tmpdir / "site-pkgs" / "pkg1" / "pkg2"),
            str(real_tmpdir / "site-pkgs2" / "pkg1" / "pkg2"),
        ]
        assert pkg1.pkg2.__path__ == expected

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def setUp(self):
        self._ns_pkgs = pkg_resources._namespace_packages.copy()
        self._tmpdir = tempfile.mkdtemp(prefix="tests-setuptools-")
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs"))
        self._prev_sys_path = sys.path[:]
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs"))

def tearDown(self):
        shutil.rmtree(self._tmpdir)
        pkg_resources._namespace_packages = self._ns_pkgs.copy()
        sys.path = self._prev_sys_path[:]

def test_two_levels_deep(self):
        """
        Test nested namespace packages
        Create namespace packages in the following tree :
            site-packages-1/pkg1/pkg2
            site-packages-2/pkg1/pkg2
        Check both are in the _namespace_packages dict and that their __path__
        is correct
        """
        sys.path.append(os.path.join(self._tmpdir, "site-pkgs2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"))
        os.makedirs(os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2"))
        ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
        for site in ["site-pkgs", "site-pkgs2"]:
            pkg1_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "__init__.py"), "w")
            pkg1_init.write(ns_str)
            pkg1_init.close()
            pkg2_init = open(os.path.join(self._tmpdir, site,
                             "pkg1", "pkg2", "__init__.py"), "w")
            pkg2_init.write(ns_str)
            pkg2_init.close()
        import pkg1
        self._assertIn("pkg1", pkg_resources._namespace_packages.keys())
        try:
            import pkg1.pkg2
        except ImportError:
            self.fail("Setuptools tried to import the parent namespace package")
        # check the _namespace_packages dict
        self._assertIn("pkg1.pkg2", pkg_resources._namespace_packages.keys())
        self.assertEqual(pkg_resources._namespace_packages["pkg1"], ["pkg1.pkg2"])
        # check the __path__ attribute contains both paths
        self.assertEqual(pkg1.pkg2.__path__, [
            os.path.join(self._tmpdir, "site-pkgs", "pkg1", "pkg2"),
            os.path.join(self._tmpdir, "site-pkgs2", "pkg1", "pkg2")])

def patched_path(self, tmpdir):
        """
        Patch sys.path to include the 'site-pkgs' dir. Also
        restore pkg_resources._namespace_packages to its
        former state.
        """
        saved_ns_pkgs = pkg_resources._namespace_packages.copy()
        saved_sys_path = sys.path[:]
        site_pkgs = tmpdir.mkdir('site-pkgs')
        sys.path.append(str(site_pkgs))
        try:
            yield
        finally:
            pkg_resources._namespace_packages = saved_ns_pkgs
            sys.path = saved_sys_path