Hello, given the following object:
>>> class A(object): ... def __getitem__(self, idx): ... if idx >= 10: raise IndexError ... return idx ... def __len__(self): ... return 10 ... I noticed that the iterator that Python constructs: >>> a = A() >>> i = iter(a) >>> dir(i) ['__class__', '__delattr__', '__doc__', '__getattribute__', '__hash__', '__init__', '__iter__', '__len__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__str__', 'next'] does not have a __length_hint__ method. Is this just a missing optimization, or there is a deep semantic reason for which a __length_hint__ could not be constructed out of the __len__ result? -- Giovanni Bajo -- http://mail.python.org/mailman/listinfo/python-list
