#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """Use total_ordering decorator to fill in missing rich comparison methods.
     """
     #end_pymotw_header
     
     import functools
     import inspect
     from pprint import pprint
     
     @functools.total_ordering
     class MyObject(object):
         def __init__(self, val):
             self.val = val
         def __eq__(self, other):
             print '  testing __eq__(%s, %s)' % (self.val, other.val)
             return self.val == other.val
         def __gt__(self, other):
             print '  testing __gt__(%s, %s)' % (self.val, other.val)
             return self.val > other.val
     
     print 'Methods:\n'
     pprint(inspect.getmembers(MyObject, inspect.ismethod))
     
     a = MyObject(1)
     b = MyObject(2)
     
     print '\nComparisons:'
     for expr in [ 'a < b', 'a <= b', 'a == b', 'a >= b', 'a > b' ]:
         print '\n%-6s:' % expr
         result = eval(expr)
         print '  result of %s: %s' % (expr, result)