Question 341766 in Json Question posted in
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Json – How to append list items from another list

I want to update a list which is having one dictionary to multiple dictionaries based on the loop

ex:- i have one list it has to update as per given range

Input :

"_items": [
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            }
        ]

i used

for i in range(0,5):
     json.dump(data, file, indent=4)

While using this i’m getting list index out of range error

Expected out put :

"_items": [
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            },
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            },
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            },
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            },
            {
                "text": "Hi.",
                "feedback": "",
                "_score": 0
            }
        ]
Tags:

2

Answers


  1. 0

    You could do that easily with list comprehension :

    data = [
          {
            "text": "Hi.",
            "feedback": "",
            "_score": 0
          }
        ]
new_data = [item for item in data for i in range(n)]
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  2. 0

    If you want to generate multiple replicas of the same element in a list, you can simply do:

    n=5
item = [{'text': 'Hi.', 'feedback': '', '_score': 0}]
items = item*n

    This will result in a list of n identical dictionaries.

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