asyncio - Related information

  • How does python co-program asyncio schedule the co-program?

    in the past, I used to put future directly into eventloop to perform run_until_complete, interview. When an interviewer asked me how to schedule the program, I was completely confused. May I ask how you are dispatched? ...

  • Where is the asynchronism of Sanic?

    has the following code. In my expectation, using two browser windows (A _ Magi B window) to access http: 127.0.0.1:8000 at the same time, the total time to wait for the two pages to load should be close to 10 seconds, but it actually takes 20 seconds,...

    Aug.16,2021
  • Implementation of python Asynchronous Cooperative Program

    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 ...

  • A problem with the cooperative process

    The code is as follows. The index function handles the incoming request, init initializes the server, and the rest is the code to create the server @asyncio.coroutine def index(request): print( one connection come... ) yield from asyncio.slee...

    Mar.23,2021
  • How to request multiple url using aiohttp

    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...

  • Python3 asyncio is used in threads

    the following code simulates the use of two threads to manage event loop: import time import asyncio import threading async def task(c, i): for _ in range(i): print(c) await asyncio.sleep(1) return i def thread(loop): -sharp ...

    Mar.20,2021
  • The problem of execution sequence of python collaboration programs

    problem description: when I was working on the actual combat article of Liao Xuefeng, I had a question when operating the database. I first defined two co-programs, and then defined a main co-program await to execute the two co-programs sequentially...

    Mar.16,2021
  • On the structure of Import Table of aiomysql and sqlalchemy

    import asyncio import sqlalchemy as sa from aiomysql.sa import create_engine @asyncio.coroutine def go(): engine = yield from create_engine(user= root ,db= test ,host= 127.0.0.1 ,password= root ) metadata = sa.MetaData(bind=engine) ...

    Mar.04,2021
  • MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
    MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2b2fe-2ba89.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-1b2b2fe-2ba89.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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