diff --git a/Lib/importlib/resources/_functional.py b/Lib/importlib/resources/_functional.py index 9e3ea1547d4..f59416f2dd6 100644 --- a/Lib/importlib/resources/_functional.py +++ b/Lib/importlib/resources/_functional.py @@ -57,11 +57,7 @@ def contents(anchor, *path_names): DeprecationWarning, stacklevel=1, ) - return ( - resource.name - for resource - in _get_resource(anchor, path_names).iterdir() - ) + return (resource.name for resource in _get_resource(anchor, path_names).iterdir()) def _get_encoding_arg(path_names, encoding): diff --git a/Lib/test/test_importlib/resources/test_functional.py b/Lib/test/test_importlib/resources/test_functional.py index d60a2bedd89..f65ffe646cf 100644 --- a/Lib/test/test_importlib/resources/test_functional.py +++ b/Lib/test/test_importlib/resources/test_functional.py @@ -1,9 +1,9 @@ import unittest import os -from test.support.warnings_helper import ignore_warnings, check_warnings +from test.support import warnings_helper -import importlib.resources as resources +from importlib import resources # Since the functional API forwards to Traversable, we only test # filesystem resources here -- not zip files, namespace packages etc. @@ -22,8 +22,7 @@ class ModuleAnchorMixin: class FunctionalAPIBase: def _gen_resourcetxt_path_parts(self): - """Yield various names of a text file in anchor02, each in a subTest - """ + """Yield various names of a text file in anchor02, each in a subTest""" for path_parts in ( ('subdirectory', 'subsubdir', 'resource.txt'), ('subdirectory/subsubdir/resource.txt',), @@ -36,7 +35,7 @@ class FunctionalAPIBase: """Assert that `string` ends with `suffix`. Used to ignore an architecture-specific UTF-16 byte-order mark.""" - self.assertEqual(string[-len(suffix):], suffix) + self.assertEqual(string[-len(suffix) :], suffix) def test_read_text(self): self.assertEqual( @@ -45,7 +44,10 @@ class FunctionalAPIBase: ) self.assertEqual( resources.read_text( - self.anchor02, 'subdirectory', 'subsubdir', 'resource.txt', + self.anchor02, + 'subdirectory', + 'subsubdir', + 'resource.txt', encoding='utf-8', ), 'a resource', @@ -53,7 +55,9 @@ class FunctionalAPIBase: for path_parts in self._gen_resourcetxt_path_parts(): self.assertEqual( resources.read_text( - self.anchor02, *path_parts, encoding='utf-8', + self.anchor02, + *path_parts, + encoding='utf-8', ), 'a resource', ) @@ -67,13 +71,16 @@ class FunctionalAPIBase: resources.read_text(self.anchor01, 'utf-16.file') self.assertEqual( resources.read_text( - self.anchor01, 'binary.file', encoding='latin1', + self.anchor01, + 'binary.file', + encoding='latin1', ), '\x00\x01\x02\x03', ) self.assertEndsWith( # ignore the BOM resources.read_text( - self.anchor01, 'utf-16.file', + self.anchor01, + 'utf-16.file', errors='backslashreplace', ), 'Hello, UTF-16 world!\n'.encode('utf-16-le').decode( @@ -97,7 +104,8 @@ class FunctionalAPIBase: self.assertEqual(f.read(), 'Hello, UTF-8 world!\n') for path_parts in self._gen_resourcetxt_path_parts(): with resources.open_text( - self.anchor02, *path_parts, + self.anchor02, + *path_parts, encoding='utf-8', ) as f: self.assertEqual(f.read(), 'a resource') @@ -111,11 +119,14 @@ class FunctionalAPIBase: with self.assertRaises(UnicodeDecodeError): f.read() with resources.open_text( - self.anchor01, 'binary.file', encoding='latin1', + self.anchor01, + 'binary.file', + encoding='latin1', ) as f: self.assertEqual(f.read(), '\x00\x01\x02\x03') with resources.open_text( - self.anchor01, 'utf-16.file', + self.anchor01, + 'utf-16.file', errors='backslashreplace', ) as f: self.assertEndsWith( # ignore the BOM @@ -130,16 +141,17 @@ class FunctionalAPIBase: self.assertEqual(f.read(), b'Hello, UTF-8 world!\n') for path_parts in self._gen_resourcetxt_path_parts(): with resources.open_binary( - self.anchor02, *path_parts, + self.anchor02, + *path_parts, ) as f: self.assertEqual(f.read(), b'a resource') def test_path(self): with resources.path(self.anchor01, 'utf-8.file') as path: - with open(str(path)) as f: + with open(str(path), encoding='utf-8') as f: self.assertEqual(f.read(), 'Hello, UTF-8 world!\n') with resources.path(self.anchor01) as path: - with open(os.path.join(path, 'utf-8.file')) as f: + with open(os.path.join(path, 'utf-8.file'), encoding='utf-8') as f: self.assertEqual(f.read(), 'Hello, UTF-8 world!\n') def test_is_resource(self): @@ -152,32 +164,32 @@ class FunctionalAPIBase: self.assertTrue(is_resource(self.anchor02, *path_parts)) def test_contents(self): - is_resource = resources.is_resource - with check_warnings((".*contents.*", DeprecationWarning)): + with warnings_helper.check_warnings((".*contents.*", DeprecationWarning)): c = resources.contents(self.anchor01) self.assertGreaterEqual( set(c), {'utf-8.file', 'utf-16.file', 'binary.file', 'subdirectory'}, ) - with ( - self.assertRaises(OSError), - check_warnings((".*contents.*", DeprecationWarning)), - ): + with self.assertRaises(OSError), warnings_helper.check_warnings(( + ".*contents.*", + DeprecationWarning, + )): list(resources.contents(self.anchor01, 'utf-8.file')) + for path_parts in self._gen_resourcetxt_path_parts(): - with ( - self.assertRaises(OSError), - check_warnings((".*contents.*", DeprecationWarning)), - ): + with self.assertRaises(OSError), warnings_helper.check_warnings(( + ".*contents.*", + DeprecationWarning, + )): list(resources.contents(self.anchor01, *path_parts)) - with check_warnings((".*contents.*", DeprecationWarning)): + with warnings_helper.check_warnings((".*contents.*", DeprecationWarning)): c = resources.contents(self.anchor01, 'subdirectory') self.assertGreaterEqual( set(c), {'binary.file'}, ) - @ignore_warnings(category=DeprecationWarning) + @warnings_helper.ignore_warnings(category=DeprecationWarning) def test_common_errors(self): for func in ( resources.read_text, @@ -208,18 +220,24 @@ class FunctionalAPIBase: # Multiple path arguments need explicit encoding argument. with self.assertRaises(TypeError): func( - self.anchor02, 'subdirectory', - 'subsubdir', 'resource.txt', + self.anchor02, + 'subdirectory', + 'subsubdir', + 'resource.txt', ) class FunctionalAPITest_StringAnchor( - unittest.TestCase, FunctionalAPIBase, StringAnchorMixin, + unittest.TestCase, + FunctionalAPIBase, + StringAnchorMixin, ): pass class FunctionalAPITest_ModuleAnchor( - unittest.TestCase, FunctionalAPIBase, ModuleAnchorMixin, + unittest.TestCase, + FunctionalAPIBase, + ModuleAnchorMixin, ): pass