A json file with millions of lines needs to be cleaned and the cleaned structured data needs to be re-stored as a csv file. Try to use pandas s dataframe to dump cleaned data items, but find that the speed of conventional cleaning is too slow to write ...
the following code always outputs Unhandled promise rejection (rejection id: 1): error1 , how to avoid it? the main function is that getVal preloads the first call, waits without return on the second call, and takes the value directly when it is retu...
this is how aiohttp officially requests a single url. What should I do if I request multiple url and get the content? import aiohttp import asyncio async def fetch(session, url): async with session.get(url) as response: return await respon...
insert Datagram error await is only valid in async function using the mysql statement in wafer2 : ...
I have several asynchronous function operations, but I want these asynchronous operations to be performed sequentially, I want to use queues, and each function needs to pass parameters. I think of the middleware of koa2, but how do I implement it? Or is ...