Checkpoint. Manipulated things so that string literals are always

unicode, and a few other compensating changes, e.g. str <- unicode,
chr <- unichr, and repr() of a unicode string no longer starts
with 'u'.  Lots of unit tests are broken, but some basic things
work, in particular distutils works so the extensions can be built,
and test_builtin.py works.

Lib/distutils/filelist.py

@@ -333,7 +333,7 @@ def translate_pattern (pattern, anchor=1, prefix=None, is_regex=0):
     or just returned as-is (assumes it's a regex object).
     """
     if is_regex:
-        if type(pattern) is StringType:
+        if isinstance(pattern, basestring):
             return re.compile(pattern)
         else:
             return pattern