fus_d = {'2013-01-01': 1, '2013-04-01': 1, '2013-02-01': 1, '2013-03-01': 1}
fus_s = {'2013-01-01': 0, '2013-04-01': 0, '2013-02-01': 1, '2013-03-01': 1}
s = set(fus_d.keys())
s.update(list(fus_s.keys()))
fu_list = [fusSent(fu_date=k, fus_due=fus_d.get(k, 0), fus_sent=fus_s.get(k,
    0)) for k in s]
db.put(fu_list)
How can I create a list from two dictionaries?