如何根据字典的键对字典进行排序?
db1 = {
'Diane': {'Laundry': 2, 'Cleaning': 4, 'Gardening': 3},
'Betty': {'Gardening': 2, 'Tutoring': 1, 'Cleaning': 3},
'Charles': {'Plumbing': 2, 'Cleaning': 5},
'Adam': {'Cleaning': 4, 'Tutoring': 2, 'Baking': 1},
}
def by_job(db1 : {str:{str:int}}) -> {str:{str:int}}:
dt = {}
for name in db1:
for skill in db1[name]:
if skill not in dt:
dt[skill] = {}
for name in db1:
for skill in db1[name]:
if skill in dt:
dt[skill][name] = db1[name][skill]
return dt
我得到的结果看起来像这样
{'Laundry': {'Diane': 2},
'Cleaning': {'Diane': 4, 'Betty': 3, 'Charles': 5, 'Adam': 4},
'Gardening': {'Diane': 3, 'Betty': 2},
'Tutoring': {'Betty': 1, 'Adam': 2},
'Plumbing': {'Charles': 2},
'Baking': {'Adam': 1}}
但是,我想要这个
{'Baking': {Adam': 1},
'Cleaning': {'Adam': 4, 'Betty': 3, 'Charles': 5, 'Diane': 4},
'Gardening': {'Betty', 2, 'Diane': 3},
'Laundry': {'Diane': 2},
'Plumbing': {'Charles': 2},
'Tutoring': {'Adam': 2, 'Betty', 1}}
避免使用OrderDict的最佳方法是什么?
答案 0 :(得分:1)
Python字典按添加键的顺序排列。您可以通过对结果的键进行排序来创建新字典。
def by_job(db1 : {str:{str:int}}) -> {str:{str:int}}:
dt = {}
for name in db1:
for skill in db1[name]:
if skill not in dt:
dt[skill] = {}
for name in db1:
for skill in db1[name]:
if skill in dt:
dt[skill][name] = db1[name][skill]
sorted_dt = {key: dt[key] for key in sorted(dt.keys())} # sort the dictionary by key
return sorted_dt
答案 1 :(得分:0)
见下文
from collections import defaultdict
db1 = {
'Diane': {'Laundry': 2, 'Cleaning': 4, 'Gardening': 3},
'Betty': {'Gardening': 2, 'Tutoring': 1, 'Cleaning': 3},
'Charles': {'Plumbing': 2, 'Cleaning': 5},
'Adam': {'Cleaning': 4, 'Tutoring': 2, 'Baking': 1},
}
d = defaultdict(dict)
for k,v in db1.items():
for k1,v1 in v.items():
d[k1][k] = v1
sorted_keys = sorted(list(d.keys()))
final = {k:d[k] for k in sorted(list(d.keys()))}
print(final)
输出
{'Baking': {'Adam': 1}, 'Cleaning': {'Diane': 4, 'Betty': 3, 'Charles': 5, 'Adam': 4}, 'Gardening': {'Diane': 3, 'Betty': 2}, 'Laundry': {'Diane': 2}, 'Plumbing': {'Charles': 2}, 'Tutoring': {'Betty': 1, 'Adam': 2}}