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

0 vote279 views1 answer
Area of a right angle triangle in python
Python
0 vote222 views1 answer
List Get a Element-2
Python
6 votes251 views1 answer
Selectfield flask wtf
Python Flask
17 votes228 views5 answers
Remove punctuation python
Python
1 vote229 views1 answer
Python filter None dictionary
Python
0 vote225 views1 answer
Pandas dataframe to parquet s3
Python
4 votes214 views1 answer
End python in command
Python
59 votes219 views6 answers
How to clear console python
Python
0 vote231 views1 answer
Quantile-quantile plot python
Python
0 vote222 views1 answer
Python make sound when finished
Python