Alex Martelli schrieb: > I detest and abhor almost-sequences which can't be sliced (I consider > that a defect of collections.deque). If the ordered dictionary records > by its sequencing the time order of key insertion, being able to ask for > "the last 5 keys entered" or "the first 3 keys entered" seem to me to be > perfectly natural use cases, and most naturally accomplished by slicing > of course, d[-5:] and d[:3] respectively.
I agree. A use case was requested: Say your dictionary holds form fields, and you know the last field is always a hidden field you wont to ignore in your output, or your dictionary holds attributes of a database, and you don't want to print the first attribute which is always some kind of uninteresting OID, then you would write "for field in d[1:]" or "for field in d[:-1]". (Otherwise, you would have to write "for field in d.keys()[1:]" etc.) -- Christoph -- http://mail.python.org/mailman/listinfo/python-list
