diff options
| -rw-r--r-- | Lib/pathlib.py | 24 | ||||
| -rw-r--r-- | Lib/test/test_pathlib.py | 12 |
2 files changed, 36 insertions, 0 deletions
diff --git a/Lib/pathlib.py b/Lib/pathlib.py index 0e65c61..c14ddd0 100644 --- a/Lib/pathlib.py +++ b/Lib/pathlib.py @@ -1329,6 +1329,27 @@ class Path(PurePath): # (see https://bitbucket.org/pitrou/pathlib/issue/12/) return False + def is_mount(self): + """ + Check if this path is a POSIX mount point + """ + # Need to exist and be a dir + if not self.exists() or not self.is_dir(): + return False + + parent = Path(self.parent) + try: + parent_dev = parent.stat().st_dev + except OSError: + return False + + dev = self.stat().st_dev + if dev != parent_dev: + return True + ino = self.stat().st_ino + parent_ino = parent.stat().st_ino + return ino == parent_ino + def is_symlink(self): """ Whether this path is a symbolic link. @@ -1416,3 +1437,6 @@ class WindowsPath(Path, PureWindowsPath): def group(self): raise NotImplementedError("Path.group() is unsupported on this system") + + def is_mount(self): + raise NotImplementedError("Path.is_mount() is unsupported on this system") diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py index 16bfee0..962adde 100644 --- a/Lib/test/test_pathlib.py +++ b/Lib/test/test_pathlib.py @@ -1880,6 +1880,18 @@ class _BasePathTest(object): self.assertFalse((P / 'linkB').is_file()) self.assertFalse((P/ 'brokenLink').is_file()) + @only_posix + def test_is_mount(self): + P = self.cls(BASE) + R = self.cls('/') # TODO: Work out windows + self.assertFalse((P / 'fileA').is_mount()) + self.assertFalse((P / 'dirA').is_mount()) + self.assertFalse((P / 'non-existing').is_mount()) + self.assertFalse((P / 'fileA' / 'bah').is_mount()) + self.assertTrue(R.is_mount()) + if support.can_symlink(): + self.assertFalse((P / 'linkA').is_mount()) + def test_is_symlink(self): P = self.cls(BASE) self.assertFalse((P / 'fileA').is_symlink()) |