Merge in all documentation changes since branching 3.4.0rc1.

1 files changed, 12 insertions, 6 deletions

diff --git a/Doc/library/os.path.rst b/Doc/library/os.path.rst
index 269856c..3771ab0 100644
--- a/Doc/library/os.path.rst
+++ b/Doc/library/os.path.rst
@@ -193,11 +193,17 @@ the :mod:`glob` module.)
 
 .. function:: ismount(path)
 
-   Return ``True`` if pathname *path* is a :dfn:`mount point`: a point in a file
-   system where a different file system has been mounted.  The function checks
-   whether *path*'s parent, :file:`path/..`, is on a different device than *path*,
-   or whether :file:`path/..` and *path* point to the same i-node on the same
-   device --- this should detect mount points for all Unix and POSIX variants.
+   Return ``True`` if pathname *path* is a :dfn:`mount point`: a point in a
+   file system where a different file system has been mounted.  On POSIX, the
+   function checks whether *path*'s parent, :file:`path/..`, is on a different
+   device than *path*, or whether :file:`path/..` and *path* point to the same
+   i-node on the same device --- this should detect mount points for all Unix
+   and POSIX variants.  On Windows, a drive letter root and a share UNC are
+   always mount points, and for any other path ``GetVolumePathName`` is called
+   to see if it is different from the input path.
+
+   .. versionadded:: 3.4
+      Support for detecting non-root mount points on Windows.
 
 
 .. function:: join(path1[, path2[, ...]])
@@ -251,7 +257,7 @@ the :mod:`glob` module.)
 .. function:: samefile(path1, path2)
 
    Return ``True`` if both pathname arguments refer to the same file or directory.
-   On Unix, this is determined by the device number and i-node number and raises an
+   This is determined by the device number and i-node number and raises an
    exception if a :func:`os.stat` call on either pathname fails.
 
    Availability: Unix, Windows.