Question

I have a dictionary where I want to alphabetically sort the keys that have the same value assigned to them.

For example: {chai:1, apple:1, dom banana:1}

How do I sort these keys alphabetically?!

Thanks.

Answer 1

>>> from collections import defaultdict
>>> items = {'chai':1, 'apple':1, 'dom banana':1}
>>> d = defaultdict(list)
>>> for k,v in items.iteritems():
        d[v].append(k)
>>> {k:sorted(v) for k,v in d.iteritems()}
{1: ['apple', 'chai', 'dom banana']}