On 20/03/13 15:09, Mitya Sirenef wrote: <cut> > > By the way, you can further simplify it by doing: > > def histogram2(s): > return {c: d.get(c,0)+1 for c in s} > > > That will work in python 3, in python 2 you need: > > return dict((c: d.get(c,0)+1) for c in s) > Thanks again Mitya, although I'm not sure it's a simplification at my present level. -- Regards, Phil