Apply diff2.txt from SF patch http://www.python.org/sf/572113

(with one small bugfix in bgen/bgen/scantools.py)

This replaces string module functions with string methods
for the stuff in the Tools directory. Several uses of
string.letters etc. are still remaining.

Tools/idle/ClassBrowser.py

@@ -12,7 +12,6 @@ XXX TO DO:
 
 import os
 import sys
-import string
 import pyclbr
 
 # XXX Patch pyclbr with dummies if it's vintage Python 1.5.2:
@@ -117,7 +116,7 @@ class ModuleBrowserTreeItem(TreeItem):
                             if sup.module != cl.module:
                                 sname = "%s.%s" % (sup.module, sname)
                         supers.append(sname)
-                    s = s + "(%s)" % string.join(supers, ", ")
+                    s = s + "(%s)" % ", ".join(supers)
                 items.append((cl.lineno, s))
                 self.classes[s] = cl
         items.sort()