import operator
x = [{'age': 10, 'name': 'Bart'}, {'age': 39, 'name': 'Homer'}]
sorted_x = sorted(x, key=operator.itemgetter('name'), reverse=True)
print sorted_x

# django
earns_stats = Callback.objects \
    .filter(time__gte=query_date['s'], time__lte=query_date['e']) \
    .extra({'order_time': "DATE(time)"}) \
    .values('order_time', 'ad_source') \
    .annotate(dcount=Count('id'), dsum=Sum('points'))

ad = ['total', 'youmi', 'duomob', 'chukong', 'midi', 'dianle', 'escore', 'anwo']
ad_id = [-1, 1, 11, 7, 5, 8, 9, 6]
tmp = {}
total = {}.fromkeys(ad)

for e in earns_stats:
    # 所有数据统计
    if not total['total']:
        total['total'] = {
            'down': e['dcount'],
            'earns': e['dsum'],
        }
    else:
        total['total']['down'] += e['dcount']
        total['total']['earns'] += e['dsum']
    # 每天数据统计
    tmp.setdefault(e['order_time'], {}.fromkeys(ad))
    if not tmp[e['order_time']]['total']:
        tmp[e['order_time']]['total'] = {
            'down': e['dcount'],
            'earns': e['dsum'],
        }
    else:
        tmp[e['order_time']]['total']['down'] += e['dcount']
        tmp[e['order_time']]['total']['earns'] += e['dsum']
    if e['ad_source'] in ad_id:
        # 每天数据统计
        tmp[e['order_time']][ad[ad_id.index(e['ad_source'])]] = {
            'down': e['dcount'],
            'earns': e['dsum'],
        }
        # 所有数据统计
        if not total[ad[ad_id.index(e['ad_source'])]]:
            total[ad[ad_id.index(e['ad_source'])]] = {
                'down': e['dcount'],
                'earns': e['dsum'],
            }
        else:
            total[ad[ad_id.index(e['ad_source'])]]['down'] += e['dcount']
            total[ad[ad_id.index(e['ad_source'])]]['earns'] += e['dsum']
datas = []
for t in tmp:
    for a in tmp[t]:
        if not tmp[t][a]:
            tmp[t][a] = dict(down=0, earns=0)
    tmp[t].setdefault('time', t)
    datas.append(tmp[t])
datas = sorted(datas, key=operator.itemgetter('time'), reverse=True)