很好地将a.txt文件转换为.json文件

Question

I have a data.txt file which I want to convert to a data.json file and print a nice first 2 entries ( data.txt contains 3 unique IDs).

The data.txt can oublicly found here (this is a sample - original file contains 10000 unique "linkedin_internal_id ).

I tried the following:

with open("data.txt", "r") as f:
    content = f.read()

data = json.dumps(content, indent=3)

This code doesn't print the appropriate JSON format of data.txt (it also includes \\ ). Also, my jupyter notebook gets stacked because of the large file size, for this, I want to nicely print only the first 2 entries.

Answer 1

It is called new line delimited json where each line is a valid JSON value and the line separator is '\n' , you can read it like this line by line and push it to a list , so later it will be easy for you to iterate/process it further. See: ldjson

import json

with open("data.txt", "r") as f:
    contents = f.read()

data = [json.loads(item) for item in contents.strip().split('\n')]
print(data[0:2])

Answer 2

Something like this?

import json
with open('data.txt', 'r') as f:
   data = [json.loads(f.readline()) for i in range(2)]
print(json.dumps(data))

This only reads and parses the first two lines of the data file, instead of loading the whole thing and then extracting the first two items.