diff options
| -rw-r--r-- | Lib/pathlib.py | 4 | ||||
| -rw-r--r-- | Lib/test/test_pathlib.py | 12 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst | 2 |
3 files changed, 13 insertions, 5 deletions
diff --git a/Lib/pathlib.py b/Lib/pathlib.py index 04b321b9cc..d42ee4dc90 100644 --- a/Lib/pathlib.py +++ b/Lib/pathlib.py @@ -12,6 +12,7 @@ from errno import ENOENT, ENOTDIR, EBADF, ELOOP from operator import attrgetter from stat import S_ISDIR, S_ISLNK, S_ISREG, S_ISSOCK, S_ISBLK, S_ISCHR, S_ISFIFO from urllib.parse import quote_from_bytes as urlquote_from_bytes +from types import GenericAlias __all__ = [ @@ -690,8 +691,7 @@ class PurePath(object): return NotImplemented return self._cparts >= other._cparts - def __class_getitem__(cls, type): - return cls + __class_getitem__ = classmethod(GenericAlias) drive = property(attrgetter('_drv'), doc="""The drive prefix (letter or UNC path), if any.""") diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py index 555c7ee795..1bf21120a3 100644 --- a/Lib/test/test_pathlib.py +++ b/Lib/test/test_pathlib.py @@ -2429,13 +2429,19 @@ class _BasePathTest(object): def test_complex_symlinks_relative_dot_dot(self): self._check_complex_symlinks(os.path.join('dirA', '..')) + def test_class_getitem(self): + from types import GenericAlias + + alias = self.cls[str] + self.assertIsInstance(alias, GenericAlias) + self.assertIs(alias.__origin__, self.cls) + self.assertEqual(alias.__args__, (str,)) + self.assertEqual(alias.__parameters__, ()) + class PathTest(_BasePathTest, unittest.TestCase): cls = pathlib.Path - def test_class_getitem(self): - self.assertIs(self.cls[str], self.cls) - def test_concrete_class(self): p = self.cls('a') self.assertIs(type(p), diff --git a/Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst b/Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst new file mode 100644 index 0000000000..a84503d299 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst @@ -0,0 +1,2 @@ +Change :meth:`pathlib.PurePath.__class_getitem__` to return +:class:`types.GenericAlias`. |