On Jan 11, 2008, at 6:45 PM, Raymond Hettinger wrote: > IMO, the chainmap() recipe on ASPN is a much better solution since > it doesn't create a third dictionary with the all the attendant > allocation and copying effort.
I wasn't suggesting that the result of concatenation would be a chained table, rather that it would perform the equivalent of an update and return the new dict (the same way extend works for lists). > It isn't a common use case to need to sum two dictionaries while > keeping both of the inputs unaltered. Inplace concatenation could be implemented more efficiently but would be exactly the same as calling update. jared _______________________________________________ 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
