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/copy_reg.py

@@ -15,7 +15,7 @@ def pickle(ob_type, pickle_function, constructor_ob=None):
     if type(ob_type) is _ClassType:
         raise TypeError("copy_reg is not intended for use with classes")
 
-    if not callable(pickle_function):
+    if not hasattr(pickle_function, '__call__'):
         raise TypeError("reduction functions must be callable")
     dispatch_table[ob_type] = pickle_function
 
@@ -25,7 +25,7 @@ def pickle(ob_type, pickle_function, constructor_ob=None):
         constructor(constructor_ob)
 
 def constructor(object):
-    if not callable(object):
+    if not hasattr(object, '__call__'):
         raise TypeError("constructors must be callable")
 
 # Example: provide pickling support for complex numbers.