python rookie, while watching the python subprocess tutorial of Liao Xuefeng, I encountered the following error report when executing nslookup command operating system: win10 python version: 3.7 import subprocess print( $ nslookup ) p = subproc...
problem description In multiprocessing, multiple processes are started to write multiple files, but after running, there is * .gz on the hard disk, but the content is empty. the environmental background of the problems and what methods you have trie...
Hello, everyone. Recently, we have been using multiprocessing to deal with problems. The approximate code is as follows: def work(i): -sharp print( child success ) pass def throw_error(e): raise e def main(): pool = m...
problem description is going to crawl the penalty information of several listed companies on the Shenzhen Stock Exchange website in a multi-process way at the same time, but the code is only executed on one of the listed company names, which is very c...
problem description I use the following code in multithreaded programming, which works fine when entering simple functions such as general print (), , but: raise ValueError ( "Pool not running ") ValueError: Pool not running appears when I run to cal...
I built a concurrent Async system using the Multi-processing module that comes with Python. There are only 2 tasks, one fast and one slow, concurrent execution, fast and slow. import sys, os, time, datetime from timeit import timeit import threading im...
problem description I want to use Docker container in Jenkins to compile the code. is to trigger automatic compilation of Jenkins every time push commit is added to the github. the platform version of the problem and what methods you have tried I...
when using node js to crawl the data of the website, I accidentally found that not all websites can be crawled with my own program. When debug, I found that I couldn t get the source code of the website. I don t know if I did something. Now I want to s...
I don t know how to start the title. < ( ^ ) > how can input, in document fragments created by document.createDocumentFragment modify the content in input through JavaScript? if you modify it directly through the value property, the prompt "Pleas...
during the development of a Java Web project, if only a few files have been changed. If you want to redeploy to the server, it would be superfluous to pack it in full. but it is troublesome to copy files one by one and replace them one by one. is th...
using the iview framework, I want to implement a click of a button to trigger the automatic focus function of Input. The key code is as follows: render: (h, params) => { if(params.index == this.editIndex){ Input return h( Input , { ...