Revert -r82559;  it's not clear that this is the right thing to do, and the change obscures the original intentions.
diff --git a/Lib/shlex.py b/Lib/shlex.py
index 3edd3db..55db23c 100644
--- a/Lib/shlex.py
+++ b/Lib/shlex.py
@@ -1,3 +1,4 @@
+# -*- coding: iso-8859-1 -*-
 """A lexical analyzer class for simple shell-like syntaxes."""
 
 # Module and documentation by Eric S. Raymond, 21 Dec 1998
@@ -34,8 +35,8 @@
         self.wordchars = ('abcdfeghijklmnopqrstuvwxyz'
                           'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_')
         if self.posix:
-            self.wordchars += ('ßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ'
-                               'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ')
+            self.wordchars += ('ßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿ'
+                               'ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞ')
         self.whitespace = ' \t\r\n'
         self.whitespace_split = False
         self.quotes = '\'"'