CODEWITHSUNDEEP
pythonlistextract
shintaro202020
shintaro202020

Reputation: 39

How to extract data from dictionary in the list

I'd like to obtain the data of dictionary in the list as follows.

list=[{"length": {"a": 0.05,"b": 0.04}, "id": "66"}]

How should I extract {"a": 0.05,"b": 0.04} and "66" from this list?

Upvotes: 0

Views: 14019

Answers (3)

guramarx
guramarx

Reputation: 25

You can use pull values from a dict like this too

ls=[{"length": {"a": 0.05,"b": 0.04}, "id": "66"}]

ls[0].values()

dvas = [ds.values() for ds in ls]

dvas = [*map(dict.values, ls)]

you should also try to avoid using built in names(list) for your variable name assignment, you can avoid a lot of bugs with this practice

Upvotes: 0

user5777975
user5777975

Reputation: 

list=[{"length": {"a": 0.05,"b": 0.04}, "id": "66"}]

for ele in list:
    for key, value in ele.items():
       print(value)

Output:

{'a': 0.05, 'b': 0.04}
66

Explanation:

As you are using list, first iterate over the list :

for ele in list:

Then iterate over the dictionary using .items:

for key, value in ele.items():

Then print the values:

print(value)

This will be your required output

Upvotes: 0

Tim Johns
Tim Johns

Reputation: 540

There are multiple problems here:

1) You define a variable named list, which would clash with the keyword list. That will lead to confusing results if you later try to create a list using the keyword.

2) You stored a single dictionary inside of a list. Why not just create a dictionary, like this:

dictionary = {"length": {"a": 0.05,"b": 0.04}, "id": "66"}

And then you could get the data that you want with the following commands:

dictionary["length"]  # Gets {"a": 0.05,"b": 0.04}
dictionary["id"]      # Gets "66"

However, since you currently have this within a list, the answer to you question is to first get element 0 from the list, and then apply the previous commands. This would look like the following:

list[0]["length"]  # Gets {"a": 0.05,"b": 0.04}
list[0]["id"]      # Gets "66"

Upvotes: 1

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