From 7ffe7ba30fc051014977c6f393c51e57e71a6648 Mon Sep 17 00:00:00 2001
From: Nikita Sobolev <mail@sobolevn.me>
Date: Thu, 3 Feb 2022 12:25:10 +0300
Subject: [PATCH] bpo-46483: Remove `__class_getitem__` from `pathlib.PurePath`
 (GH-30848)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
---
 Doc/whatsnew/3.11.rst                                    | 3 +++
 Lib/pathlib.py                                           | 3 ---
 Lib/test/test_pathlib.py                                 | 9 ---------
 .../Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst     | 2 --
 .../Library/2022-01-24-13-00-09.bpo-46483.9XnmKp.rst     | 1 +
 5 files changed, 4 insertions(+), 14 deletions(-)
 delete mode 100644 Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst
 create mode 100644 Misc/NEWS.d/next/Library/2022-01-24-13-00-09.bpo-46483.9XnmKp.rst

diff --git a/Doc/whatsnew/3.11.rst b/Doc/whatsnew/3.11.rst
index 33f39e57752..acb21d3ccaf 100644
--- a/Doc/whatsnew/3.11.rst
+++ b/Doc/whatsnew/3.11.rst
@@ -545,6 +545,9 @@ Removed
   Python 3.4 but has been broken since Python 3.7.
   (Contributed by Inada Naoki in :issue:`23882`.)
 
+* Remove ``__class_getitem__`` method from :class:`pathlib.PurePath`,
+  because it was not used and added by mistake in previous versions.
+  (Contributed by Nikita Sobolev in :issue:`46483`.)
 
 Porting to Python 3.11
 ======================
diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index 920e1f425a0..7f4210e2b80 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -12,7 +12,6 @@ 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__ = [
@@ -604,8 +603,6 @@ class PurePath(object):
             return NotImplemented
         return self._cparts >= other._cparts
 
-    __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 5e46b4ffeae..ec2baca18fd 100644
--- a/Lib/test/test_pathlib.py
+++ b/Lib/test/test_pathlib.py
@@ -2450,15 +2450,6 @@ 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
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
deleted file mode 100644
index a84503d299a..00000000000
--- a/Misc/NEWS.d/next/Library/2022-01-23-11-17-48.bpo-46483.j7qwWb.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Change :meth:`pathlib.PurePath.__class_getitem__` to return
-:class:`types.GenericAlias`.
diff --git a/Misc/NEWS.d/next/Library/2022-01-24-13-00-09.bpo-46483.9XnmKp.rst b/Misc/NEWS.d/next/Library/2022-01-24-13-00-09.bpo-46483.9XnmKp.rst
new file mode 100644
index 00000000000..89cc818a9c5
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-01-24-13-00-09.bpo-46483.9XnmKp.rst
@@ -0,0 +1 @@
+Remove :meth:`~object.__class_getitem__` from :class:`pathlib.PurePath` as this class was not supposed to be generic.