Replace ".ext" with ".suffix", and add the ".suffixes" property.

pep-0428.txt

@@ -362,9 +362,9 @@ call ``bytes()`` on it, or use the ``as_bytes()`` method::
 Properties
 ----------
 
-Five simple properties are provided on every path (each can be empty)::
+Six simple properties are provided on every path (each can be empty)::
 
-    >>> p = PureNTPath('c:/pathlib/setup.py')
+    >>> p = PureNTPath('c:/Downloads/pathlib.tar.gz')
     >>> p.drive
     'c:'
     >>> p.root
@@ -372,9 +372,13 @@ Five simple properties are provided on every path (each can be empty)::
     >>> p.anchor
     'c:\\'
     >>> p.name
-    'setup.py'
+    'pathlib.tar.gz'
-    >>> p.ext
+    >>> p.basename
-    '.py'
+    'pathlib.tar'
+    >>> p.suffix
+    '.gz'
+    >>> p.suffixes
+    ['.tar', '.gz']
 
 
 Sequence-like access