TypeError: list indices must be integers or slices, not str in JSON?

Question

Python

And so, with the help

[item for item in data['data']['list'] if item['user']['name'] == 'name1']

I filter the code and leave only the code where name == name1 (which is clear from the code), how can I return this code back to JSON and filter it again?
I tried using json.dumps() and json.loads(), it doesn't help - when I try to filter the code again I get an error

TypeError: list indices must be integers or slices, not str

using code like this:

[item for item in njson['data']['list'] if 'text' in item['message']]

tell me what to do

Answer 1

It is logical that if

njson = [item for item in data['data']['list'] if item['user']['name'] == 'name1']

then njson will be a list, not a nested dictionary. And accessing its elements as njson['data']['list'] doesn't make sense.
If the goal was to filter that list inside the original json, then it had to be changed:

data['data']['list'] = [item for item in data['data']['list'] if item['user']['name'] == 'name1']