On 28-Sep-07, at 10:45 AM, Raymond Hettinger wrote: > [Bruce Frederiksen] >>> I've added a new function to itertools called 'concat'. This >>> function is >>> much like chain, but takes all of the iterables as a single >>> argument. > > Any practical use cases or is this just a theoretical improvement? > > For Py2.x, I'm not willing to unnecessarily expand the module. > However, for Py3k, I'm open to changing the signature for chain().
For me, a fraction of chain() uses are of the * variety: d = defaultdict(list) allvals = chain(*d.values()) return chain(*imap(cache.__getitem__, keylist)) Interestingly, they seem to all have something to do with dictionary values() that are themselves iterable. -Mike _______________________________________________ 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
