Python defaultdict to dict

>>> #You can simply call dict:
>>> a
defaultdict(<type 'list'>, {'1': ['b', 'a'], '3': ['b'], '2': ['a']})
>>> dict(a)
{'1': ['b', 'a'], '3': ['b'], '2': ['a']}

# but remember that a defaultdict is a dict
# (with some special behavior, check source):
>>> isinstance(a, dict)
True

Source: stackoverflow.com

Defaultdict python dict inside dict

nums = [1, 2, 1, 1, 4, -4, 2, 2, 4, 2, 5, 7]
dict_in_dict = defaultdict(dict)
for i in range(0, len(nums), 3):
    dict_in_dict[nums[i+1]][nums[i]] = -1*nums[i+2]
dict(dict_in_dict)

# result
# {2: {1: -1, 2: -4}, 4: {1: 4}, 5: {2: -7}}

Similar codes

79 votes184 views6 answers
Read csv python
Python
0 vote193 views1 answer
Django pass list of fields to values
Python
0 vote186 views1 answer
Kivy display PIL image
Python
0 vote177 views1 answer
Gspread how to put shhet number in a variable
Python
0 vote172 views1 answer
Tweepy auth
Python
0 vote185 views1 answer
Create contract from interface in brownie
Python
0 vote228 views1 answer
How to make loops in python
Python
4 votes268 views2 answers
How to take two integers as input in python
Python
0 vote169 views1 answer
Cv2 remove black borders on images
Python
0 vote336 views1 answer
Python3 print format float
Python