I've updated the PEP to reflect the discussion. There are two major changes:
1) NotImplemented may be used by __length_hint__ to indicate that there is no finite length hint available. 2) callers of operator.length_hint() must provide their own default value, this is also required by the current C _PyObject_LengthHint implementation. There are no provisions for infinite iterators, that is not within the scope of this proposal. Alex _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
