Delete a single element from a nested list inside dictionary

Question

I want delete a single element inside a key documents, the list size can vary, so first I am counting the number of items inside list, and then I want to delete the Object element from documents list.
I want to basically run the python for loop depending upon the list size, and delete the element from it. Not able to really figure out an approach for for loop.
Input

    {
          "UserCode": "<user>",
          "ObjectType": "Document",
          "documents": [
            {
              "Object": "<base-64-string1>",
              "ObjectSourceFileName": "A1.json",
              "ContextKey": "A1.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "Object": "<base-64-string2>",
              "ObjectSourceFileName": "A2.json",
              "ContextKey": "A2.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "Object": "<base-64-string3>",
              "ObjectSourceFileName": "A3.json",
              "ContextKey": "A3.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "Object": "<base-64-string4>",
              "ObjectSourceFileName": "A4.json",
              "ContextKey": "A4.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            }
          ],
          "ClientCode": "CL",
          "Source": "Client"
        }

Expected Output

    {
          "UserCode": "<user>",
          "ObjectType": "Document",
          "documents": [
            {
              "ObjectSourceFileName": "A1.json",
              "ContextKey": "A1.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "ObjectSourceFileName": "A2.json",
              "ContextKey": "A2.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "ObjectSourceFileName": "A3.json",
              "ContextKey": "A3.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            },
            {
              "ObjectSourceFileName": "A4.json",
              "ContextKey": "A4.json2022-08-010T09:40:06.429358",
              "ObjectFormat": "csv"
            }
          ],
          "ClientCode": "CL",
          "Source": "Client"
        }

Asked By: donny

||

Source

Answer 1

You can use del to remove the key from dictionary:

dct = ... your dictionary from the question ...

for doc in dct["documents"]:
    del doc["Object"]

print(dct)

Prints:

{
    "UserCode": "<user>",
    "ObjectType": "Document",
    "documents": [
        {
            "ObjectSourceFileName": "A1.json",
            "ContextKey": "A1.json2022-08-010T09:40:06.429358",
            "ObjectFormat": "csv",
        },
        {
            "ObjectSourceFileName": "A2.json",
            "ContextKey": "A2.json2022-08-010T09:40:06.429358",
            "ObjectFormat": "csv",
        },
        {
            "ObjectSourceFileName": "A3.json",
            "ContextKey": "A3.json2022-08-010T09:40:06.429358",
            "ObjectFormat": "csv",
        },
        {
            "ObjectSourceFileName": "A4.json",
            "ContextKey": "A4.json2022-08-010T09:40:06.429358",
            "ObjectFormat": "csv",
        },
    ],
    "ClientCode": "CL",
    "Source": "Client",
}

Answered By: Andrej Kesely

Delete a single element from a nested list inside dictionary

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