Pandas DataFrame中嵌套的字典列表

Question

Here the nutrients column had 4 dictionaries in a list, each dictionary has 5 keys with 1 values on each key.

How can I flatten this nutrients column to make each as a sub column or row?

Actually it was a JSON file and I already flattened it into this. But I couldn't go further :(

Thanks for the help.

EDIT : Please see below for more information and what i tried:

Answer 1

You can use json_normalize() in order to flatten your JSON file like this:

import ujson
import pandas as pd

with open('/path/to/your/file.json') as f:
    data = ujson.load(f)

df = pd.io.json.json_normalize(data, 'nutrients', ['measure','name','ndbno','weight'])

assuming that ['measure','name','ndbno','weight'] - aren't nested