GTXY20 wrote: > Hello, > > Any way to display the count of the values in a dictionary where the > values are stored as a list? here is my dictionary: > > {'1': ['a', 'b', 'c'], '3': ['a', 'b', 'c'], '2': ['a', 'b', 'c'], '4': > ['a', 'c']} > > I would like to display count as follows and I would not know all the > value types in the values list: > > Value QTY > a 4 > b 3 > c 4 > > Also is there anyway to display the count of the values list > combinations so here again is my dictionary: > > {'1': ['a', 'b', 'c'], '3': ['a', 'b', 'c'], '2': ['a', 'b', 'c'], '4': > ['a', 'c']} > > > And I would like to display as follows > > QTY Value List Combination > 3 a,b,c > 1 a,c > > Once again all help is much appreciated. > > M. >
>>> D = {'1':['a', 'b', 'c'], '3':['a', 'b', 'c'], '2':['a', 'b', 'c'], '4':['a', 'c'] } >>> d = {} >>> for v in reduce(lambda x, y: x+y, [b for a,b in D.iteritems()]): ... d[v] = d.setdefault(v, 0) + 1 ... >>> for k, v in d.iteritems(): ... print k, v ... a 4 c 4 b 3 >>> ld = {} >>> for v in [''.join(b) for a,b in D.iteritems()]: ... d[v] = d.setdefault(v, 0) + 1 ... >>> for k, v in d.iteritems(): ... print v, list(k) ... 1 ['a', 'c'] 3 ['a', 'b', 'c'] HTH _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor