Better way to read and write to file. Async in python?

Question

I have a 6000 lines long data file which I'm going to load up in buffer parse it and write to another json file. What is a better way to accomplish this task ? Should I load the file in buffer, then parse it , and then write it to the file ? Or should I load chunk of file in buffer, process it, and write it to the while keeping tasks simultaneously ? Is this close to async function in javascript ? Is there examples in python for simple file loading and writing to a file ?

Daniil Rose · Accepted Answer · 2020-07-28 14:21:25Z

1

You can use aiofiles:

async with aiofiles.open('filename', mode='r') as f:
    async for line in f:
        print(line)

They have good usage documentation in their GitHub repo.

answered Jul 28, 2020 at 14:21

Daniil Rose

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