有没有更简单的方法来分配字典并循环更新？

Question

Tried to just loop through each key appending it to a list, then loop through it, but it failed. Was wondering if there was a nicer way of updating my dictionary instead of defining all those variables above and updating it one-by-one?

nfl = dict()
nfl['Tom'] = tom = dict()
nfl['bob'] = bob = dict()
nfl['kara'] = kara = dict()
nfl['Mike'] = mike = dict()

for k in data:
    if 'tom_score' in data[k]:
        <doing stuff here>
    elif 'bob'in k:
        bob.update(data[k])
    elif 'kara'in k:
        kara.update(data[k])
    elif 'mike'in k:
        mike.update(data[k])

Answer 1

Assuming it's a typo and 'Tom' and 'tom_score' supposed to be the same, you can use defaultdict .

from collections import defaultdict

nfl = defaultdict(dict)

for k in data:
    if k in ['Tom', 'bob', 'kara', 'Mike']:
        nfl[k].update(data[k])

You can skip if part with names check if you want to have all names from the data and not only specified ones.