On Friday, October 14, 2016 at 7:49:33 PM UTC-4, Robin Koch wrote: > Am 15.10.2016 um 01:33 schrieb 38016226...@gmail.com: > > nums=['3','30','34','32','9','5'] > > I need to sort the list in order to get the largest number string: > > '953433230' > > > > nums.sort(cmp=lambda a,b: cmp(a+b, b+a), reverse=True) > > > > But how to do this in python 3? > > https://docs.python.org/3/library/functools.html#functools.cmp_to_key > > | Transform an old-style comparison function to a key function.
cmp_to_key is a neat magic trick of a function, because it's seemingly doing the impossible: how can a two-argument function be turned into a one-argument function? Studying the code turns up a few clever Python tricks. --Ned. -- https://mail.python.org/mailman/listinfo/python-list
