Jeremy C B Nicoll: > The code someone else posted to reverse the keys is all very well, but > surely hugely wasteful on cpu, maybe storage, and elapsed time.
If you are talking about my D code then I know it, the creation of the first dict has to be skipped, if possible... The code I have posted must be adapted. Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
