bpo-42129: Add support for resources in namespaces (GH-24670)

* Unify behavior in ResourceReaderDefaultsTests and align with the behavior found in importlib_resources.
* Equip NamespaceLoader with a NamespaceReader.
* Apply changes from importlib_resources 5.0.4

1 files changed, 6 insertions, 9 deletions

diff --git a/Lib/test/test_importlib/test_read.py b/Lib/test/test_importlib/test_read.py
index ff78d0b2948..f6ec13af62d 100644
--- a/Lib/test/test_importlib/test_read.py
+++ b/Lib/test/test_importlib/test_read.py
@@ -25,20 +25,19 @@ class ReadTests:
         self.assertEqual(result, 'Hello, UTF-8 world!\n')
 
     def test_read_text_given_encoding(self):
-        result = resources.read_text(
-            self.data, 'utf-16.file', encoding='utf-16')
+        result = resources.read_text(self.data, 'utf-16.file', encoding='utf-16')
         self.assertEqual(result, 'Hello, UTF-16 world!\n')
 
     def test_read_text_with_errors(self):
         # Raises UnicodeError without the 'errors' argument.
-        self.assertRaises(
-            UnicodeError, resources.read_text, self.data, 'utf-16.file')
+        self.assertRaises(UnicodeError, resources.read_text, self.data, 'utf-16.file')
         result = resources.read_text(self.data, 'utf-16.file', errors='ignore')
         self.assertEqual(
             result,
             'H\x00e\x00l\x00l\x00o\x00,\x00 '
             '\x00U\x00T\x00F\x00-\x001\x006\x00 '
-            '\x00w\x00o\x00r\x00l\x00d\x00!\x00\n\x00')
+            '\x00w\x00o\x00r\x00l\x00d\x00!\x00\n\x00',
+        )
 
 
 class ReadDiskTests(ReadTests, unittest.TestCase):
@@ -48,13 +47,11 @@ class ReadDiskTests(ReadTests, unittest.TestCase):
 class ReadZipTests(ReadTests, util.ZipSetup, unittest.TestCase):
     def test_read_submodule_resource(self):
         submodule = import_module('ziptestdata.subdirectory')
-        result = resources.read_binary(
-            submodule, 'binary.file')
+        result = resources.read_binary(submodule, 'binary.file')
         self.assertEqual(result, b'\0\1\2\3')
 
     def test_read_submodule_resource_by_name(self):
-        result = resources.read_binary(
-            'ziptestdata.subdirectory', 'binary.file')
+        result = resources.read_binary('ziptestdata.subdirectory', 'binary.file')
         self.assertEqual(result, b'\0\1\2\3')