Python dict 键按列表排序为值

Question

我有一个这样的字典列表，每个字典键的值是一个列表，

[{'mike':[500,1000,1500,2750,3000]},{'john':[750,1250,2000]},{'luke':[600,1100]}]

列表中字典的数量会有所不同。

我怎样才能得到这样的输出，每个dict值按升序排列

500:mike
600:luke
750:john
1000:mike
1100:luke
1250:john
1500:mike
2000:john
2750:mike
3000:mike

Answer 1

一个类轮:

result = sorted(((item, key) for d in x for (key, value) in d.items() for item in value), key=lambda x: x[0])

for elem in result:
    print ({elem[0]}:{elem[0]}.format(elem=elem)

多线:

x = [{"mike":[500,1000,1500,2750,3000]},{"john":[750,1250,2000]},{"luke":[600,1100]}]
result = []
for item in x:
    for key, value in item.iteritems():
        for v in value:
            result.append((v, key))
result.sort(key=lambda x: x[0])
for elem in result:
    print ({elem[0]}:{elem[0]}.format(elem=elem)

# outputs
500:mike
600:luke
750:john
1000:mike
1100:luke
1250:john
1500:mike
2000:john
2750:mike
3000:mike