Removed uses of dict.has_key() from distutils, and uses of

callable() from copy_reg.py, so the interpreter now starts up
without warnings when '-3' is given.  More work like this needs to
be done in the rest of the stdlib.

Lib/distutils/dir_util.py

@@ -207,7 +207,7 @@ def remove_tree (directory, verbose=0, dry_run=0):
             apply(cmd[0], (cmd[1],))
             # remove dir from cache if it's already there
             abspath = os.path.abspath(cmd[1])
-            if _path_created.has_key(abspath):
+            if abspath in _path_created:
                 del _path_created[abspath]
         except (IOError, OSError), exc:
             log.warn(grok_environment_error(