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 ...
1. I made a simulated Wechat chat window, Firefox will have the following problems when sending chat messages: Chinese input such as pinyin: nihao, presses the enter key to send nihao directly to the chat window; while chrome browser presses enter to di...
report this error, what should I do ...
what s going on? ...
as mentioned above, when docker, is installed under ubuntu, there is a lack of permissions at the beginning of startup, and then switch to root to start. It is found that there is no error after startup, but the docker service is still not started. I ...
the project encounters the function that needs to modify the theme. V-if can be implemented, but it is very troublesome. Want to know how to change the variables color in scss through vue or js ...