python - Parse dict of dicts to string -

i have dictionary following structure :

{1: {'message': u'test', 'user': u'user1'}, 2: {'message': u'test2', 'user': u'user2'}}

i'd create string containing values inner dictionary in form :

string = "<span>test1</span><span>user1</span><br />           <span>test2</span>..." 

i've tried dict.keys(), dict.values(), (k,v) k, v in dict cannot make work. proper way ?

>>> d={1: {'message': u'test', 'user': u'user1'}, 2: {'message': u'test2', 'user': u'user2'}}  >>> ''.join('<span>%(message)s</span><span>%(user)s</span><br/>' % v k,v in sorted(d.items())) u'<span>test</span><span>user1</span><br/><span>test2</span><span>user2</span><br/>'