From: Barney Gale <barney.gale@gmail.com>
Date: Fri, 17 Apr 2020 17:42:06 +0000 (+0100)
Subject: bpo-39897: Remove needless `Path(self.parent)` call, which makes `is_mount()` misbeha... 
X-Git-Tag: v3.9.0a6~81
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c746c4f353510a17683a49ed7f90ffaae664ff7b;p=thirdparty%2FPython%2Fcpython.git

bpo-39897: Remove needless `Path(self.parent)` call, which makes `is_mount()` misbehave in `Path` subclasses. (GH-18839)
---

diff --git a/Lib/pathlib.py b/Lib/pathlib.py
index d2053e628450..d3e89dfbc88a 100644
--- a/Lib/pathlib.py
+++ b/Lib/pathlib.py
@@ -1438,9 +1438,8 @@ class Path(PurePath):
         if not self.exists() or not self.is_dir():
             return False
 
-        parent = Path(self.parent)
         try:
-            parent_dev = parent.stat().st_dev
+            parent_dev = self.parent.stat().st_dev
         except OSError:
             return False
 
@@ -1448,7 +1447,7 @@ class Path(PurePath):
         if dev != parent_dev:
             return True
         ino = self.stat().st_ino
-        parent_ino = parent.stat().st_ino
+        parent_ino = self.parent.stat().st_ino
         return ino == parent_ino
 
     def is_symlink(self):