Question

想问下python字典排序 怎么才能先按照值大小降序排列 若值相同 再按照键的字母顺序排呢?

Answer 1

暂时只能想到这样的,结果是排序后的键列表.

d = {'a':3,'c':4,'b':3,'d':2,'f':4,'e':2}

result = []

keys = sorted(d,key=lambda k:d[k])

for k in keys:

if not result:

result.append(k)

elif d[k] == d[result[-1]] and k < result[-1]:

result.insert(len(result) - 1,k)

else:

result.append(k)

print result