GH-127381: pathlib ABCs: remove `PathBase.cwd()` and `home()` (#127427)

These classmethods presume that the user has retained the original
`__init__()` signature, which may not be the case. Also, many virtual
filesystems don't provide current or home directories.

1 files changed, 17 insertions, 0 deletions

diff --git a/Lib/pathlib/_local.py b/Lib/pathlib/_local.py
index 25c1e3f..b5d9dc4 100644
--- a/Lib/pathlib/_local.py
+++ b/Lib/pathlib/_local.py
@@ -726,6 +726,14 @@ class Path(PathBase, PurePath):
         tail.extend(self._tail)
         return self._from_parsed_parts(drive, root, tail)
 
+    @classmethod
+    def cwd(cls):
+        """Return a new path pointing to the current working directory."""
+        cwd = os.getcwd()
+        path = cls(cwd)
+        path._str = cwd  # getcwd() returns a normalized path
+        return path
+
     def resolve(self, strict=False):
         """
         Make the path absolute, resolving all symlinks on the way and also
@@ -908,6 +916,15 @@ class Path(PathBase, PurePath):
         return self
 
     @classmethod
+    def home(cls):
+        """Return a new path pointing to expanduser('~').
+        """
+        homedir = os.path.expanduser("~")
+        if homedir == "~":
+            raise RuntimeError("Could not determine home directory.")
+        return cls(homedir)
+
+    @classmethod
     def from_uri(cls, uri):
         """Return a new path from the given 'file' URI."""
         if not uri.startswith('file:'):