Patch# 1258 by Christian Heimes: kill basestring.

I like this because it makes the code shorter! :-)

Lib/distutils/filelist.py

@@ -301,7 +301,7 @@ 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 isinstance(pattern, basestring):
+        if isinstance(pattern, str):
             return re.compile(pattern)
         else:
             return pattern