1 files changed, 14 insertions, 8 deletions

diff --git a/Lib/os.py b/Lib/os.py
index edd61ab..1318de6 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -877,29 +877,35 @@ def _fscodec():
 
     def fsencode(filename):
         """
-        Encode filename to the filesystem encoding with 'surrogateescape' error
-        handler, return bytes unchanged. On Windows, use 'strict' error handler if
-        the file system encoding is 'mbcs' (which is the default encoding).
+        Encode filename (an os.PathLike, bytes, or str) to the filesystem
+        encoding with 'surrogateescape' error handler, return bytes unchanged.
+        On Windows, use 'strict' error handler if the file system encoding is
+        'mbcs' (which is the default encoding).
         """
+        filename = fspath(filename)
         if isinstance(filename, bytes):
             return filename
         elif isinstance(filename, str):
             return filename.encode(encoding, errors)
         else:
-            raise TypeError("expect bytes or str, not %s" % type(filename).__name__)
+            raise TypeError("expected str, bytes or os.PathLike object, not "
+                            + path_type.__name__)
 
     def fsdecode(filename):
         """
-        Decode filename from the filesystem encoding with 'surrogateescape' error
-        handler, return str unchanged. On Windows, use 'strict' error handler if
-        the file system encoding is 'mbcs' (which is the default encoding).
+        Decode filename (an os.PathLike, bytes, or str) from the filesystem
+        encoding with 'surrogateescape' error handler, return str unchanged. On
+        Windows, use 'strict' error handler if the file system encoding is
+        'mbcs' (which is the default encoding).
         """
+        filename = fspath(filename)
         if isinstance(filename, str):
             return filename
         elif isinstance(filename, bytes):
             return filename.decode(encoding, errors)
         else:
-            raise TypeError("expect bytes or str, not %s" % type(filename).__name__)
+            raise TypeError("expected str, bytes or os.PathLike object, not "
+                            + path_type.__name__)
 
     return fsencode, fsdecode