collections import mappingimporterror from

Could not get a resource from the pool 异常定位和解决

最近在服务中经常看到以下错误,进行下定位和问题解决分析: 2023-12-08 00:10:58.248 WARN [terra-sr-server,a9006fd27ccb81d0,a9006fd27ccb81d0,false] 52 [o-14009-exec-38] o.s.b.a.redis ......
resource Could from pool not

BigdataAIML-Important Data Features processing points

Standardize scales first using scikit-learn; Identify correlated features using mathematics(Measure of correlationship); Consider using a pairwise plo ......

style中通过import引入样式时,scoped不生效

通过import引入的外部css文件,这种引入方式是全局的,也会影响其他组件的页面样式 <style lang="scss" scoped> @import url(../style.scss); </style> 此时虽然用了scoped,但是样式还是全局的。 造成样式污染的案例: (1)、父页面 ......
样式 import scoped style

vscode调试import文件报错: ModuleNotFoundError No module named 'libs'

vscode调试python时出现import其他文件夹找不到路径的报错,需要设置正确的working directory (cwd)和PYTHONPATH(env) { "version": "0.2.0", "configurations": [ { "name": "Python: Curre ......

logback error Logging system failed to initialize using configuration from 'null'

* [After upgrading the project from spring boot 2.3.4 to 2.7.0, build fail with a logback.xml · Issue #32025 · spring-projects/spring-boot · GitHub](h ......

Java 泛型:List,Map,Set,Collections

第一章:集合的概念 1.1 集合的概念 集合框架是一个用来代表和操纵集合的统一架构。所有的集合框架都包含如下内容: 接口:是代表集合的抽象数据类型。例如 Collection、List、Set、Map 等。之所以定义多个接口,是为了以不同的方式操作集合对象。 实现(类):是集合接口的具体实现。从本质 ......
Collections Java List Map Set

dgl AttributeError: Can't get attribute 'DGLGraph' on <module 'dgl.heterograph' from '/home/user/anaconda3/envs/mymodel/lib/python3.7/site-packages/dgl/heterograph.py'>

由于服务器重装了系统,因此cuda版本和ubuntu系统版本也换了,不得不重装系统,导致以前可以正常运行的代码出了各种故障(注:现在的ubuntu版本是18.04,cuda版本是11.3) AttributeError: Can't get attribute 'DGLGraph' on <modu ......

spring boot项目中org.springframework.boot.autoconfigure.AutoConfiguration.imports和META-INF.spring下的文件的作用汇总

一、resource下的文件 org.springframework.boot.autoconfigure.AutoConfiguration.imports spring.factories messages_zh_CN.properties 二、spring.factories文件我们知道在sp ......

import引入pdfjs-dist报错Top-level await is not available、No "GlobalWorkerOptions.workerSrc"等

报错1: Top-level await is not available in the configured target environment ("chrome87", "edge88", "es2020", "firefox78", "safari14" + 2 overrides) nod ......

js中Array.from方法

这个方法,主要用于将一个类似数组的东西变成为数组 一.将一个字符串转化伪数组 let str='helloWord' let arr =Array.from(str) console.log(arr) //输出 ['h', 'e', 'l', 'l', 'o', 'W', 'o', 'r', 'd' ......
方法 Array from

ERROR: Could not find a version that satisfies the requirement basicsr== (from versions: none)

(py37_gan) C:\Users\Administrator>pip3 install basicsr==WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after ......

docker启动容器报错:Error response from daemon: driver failed programming external connectivity on endpoint

安装的docker启动报错如下: Error response from daemon: driver failed programming external connectivity on endpoint nacos (2b0f4edff8f640559af9626936d1b38d965302 ......

vscode报错Already included file name ‘xxx‘ differs from file name ‘xxx‘ only in casing的解决方法:

场景:我们创建了一个文件是小写开头的,又改成大写开头的。 比如: relationDemo.vue 改成 RelationDemo.vue 原因:缓存的判重逻辑是不区分大小写导致的。在这种情况下,vscode缓存中放的是relationDemo.vue,改了大小写后,vscode试图把Relatio ......
file name xxx included Already

pytest 运行出现collected 0 items

.py文件是否修改过名字,文件写好后,修改文件名的话,后续的代码无法记录到此文件中,可能导致collected 0 items 解决方法:重新新建文件拷贝一下,即可解决 ......
collected pytest items

GC - Garbage Collection

在编程语言中,GC通常指的是"垃圾回收"(Garbage Collection)。 在强类型语言中,如Java和C#等,GC是一种自动内存管理机制,它负责跟踪程序中创建的对象,识别不再被引用或使用的对象,并将它们释放,从而减少内存泄漏和提高程序性能。 GC可以自动识别不再需要的对象,并在适当的时候将 ......
Collection Garbage GC

"firmwarepasswd": MacOS Firmware Password Management: CHECK and DELETE Macbook Pro Firmware Password from the command line.

Abaels-MacBook-Pro:~ abaelhe$ su Password: bash-3.2# firmwarepasswd -check Password Enabled: Yes bash-3.2# firmwarepasswd -delete Delete Firmware Pass ......

AtCoder Beginner Contest 331 G - Collect Them All【概率期望+容斥+多项式】

题目链接:ABC331_G 写在前面 将来如果回顾这道题,建议自己看完题意一定先重新推一遍。如果还是不够熟练,多去做一些同类型的题目吧。 题意: 盒子里有 \(N\) 张卡片,每张卡片上写着一个数字,数字的范围是 \(1,...,M\),写着数字 \(i\) 的卡片有 \(C_i\) 张\((C_i ......
多项式 概率 Beginner AtCoder Contest

15.Please retell the parable of The Blind men and An Elephant. What is the moral of the parable? What can we learn from the parable when it comes to critical thinking?

Round 1: Retelling the Parable and Extracting the Moral Speaker 1 (Student A): Hey everyone! So, let's dive into the parable of "The Blind Men and the ......
parable the What Elephant critical

12.How do you understand the three “C”s(Concise,Clear & Coherent)in an academic Abstract writing?Why are they so important and worthy of a careful study?

Round 1: Understanding the Three "C"s in Academic Abstract Writing Speaker 1 (Researcher A): Greetings, everyone. Today, we're delving into the signif ......

unplugin-auto-import 插件源码的简单实现

工作中用到了这个插件 好奇是通过ast还是什么方式实现的判断代码是否调用了某个库,所以就研究了下 准备工作 1 一个vite项目 安装了该插件,预设只有vue import { defineConfig } from 'vite' import vue from '@vitejs/plugin-vu ......

JAVA - Collections

public class Test1 { public static void main(String[] args) { Student s = new Student("张三",18,"唱歌"); Student s1 = new Student("李四",27,"跳舞"); Student s ......
Collections JAVA

【JavaSE】集合Collection{List(ArrayList, LinkedList), Set(TreeSet, HashSet, LinkedHashSet)} + Map(HashMap, TreeMap, LinkedHashMap)

集合体系; 单列集合Collection{List(ArrayList, LinkedList), Set(TreeSet, HashSet, LinkedHashSet)}; 双列集合Map(HashMap, TreeMap, LinkedHashMap); 单列集合和双列集合的遍历方式; 单列集... ......

import

哪些包是自带的 没有的包怎么下载 在python中使用 pip install 在go中使用go get 哈哈哈,被我们伟大的防火墙给阻拦了,好啊好啊 就会下载到我们设置的环境变量里 ......
import

Predicting gene expression from histone modifications with self-attention based neural networks and transfer learning

Predicting gene expression from histone modifications with self-attention based neural networks and transfer learning Yuchi Chen 1, Minzhu Xie 1, Jie ......

collections.Counter()统计list中出现次数

要查找lines列表中重复的行并将其打印出来,您可以使用Python的collections.Counter()函数来统计每行出现的次数。然后,遍历统计结果,找出出现次数大于1的行,并打印出来。 以下是一个示例代码: import os from collections import Counter ......
collections 次数 Counter list

灵魂拷问std::enable_shared_from_this,揭秘实现原理

灵魂拷问std::enable_shared_from_this,揭秘实现原理 引言 在C++编程中,使用智能指针是一种安全管理对象生命周期的方式。std::shared_ptr是一种允许多个指针共享对象所有权的智能指针。然而,当一个对象需要获取对自身的shared_ptr时,传统的方法可能导致未定 ......

hive执行sql报错 FAILED: Execution Error, return code 3 from org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask

前言: 执行hive sql报错,sql逻辑是两个表左连接并将数据插入新的表中。 报错信息: [ERROR] 2023-12-05 15:49:49.165 +0800 - execute sql error: Error while processing statement: FAILED: Ex ......
hive MapredLocalTask Execution FAILED apache

AtCoder Beginner Contest 331 G Collect Them All

洛谷传送门 AtCoder 传送门 设数字 \(i\) 第一次拿到的时间为 \(t_i\),所求即为 \(E(\max\limits_{i = 1}^m t_i)\)。 施 min-max 容斥,有: \[\begin{aligned}E(\max\limits_{i = 1}^m t_i) & = ......
Beginner AtCoder Contest Collect Them

Mysql: [HY000][1093] You can't specify target table 'dupes' for update in FROM clause

错误原因 在同一语句中。不能先SELECT出同一表的某些值,在Update这个表 实例 错误实例 DELETE FROM dupes WHERE id NOT IN (SELECT MIN(id) FROM dupes GROUP BY name) 正确实例 DELETE FROM dupes WH ......
39 specify clause target update

Disconnected from the target VM, address: '127.0.0.1:5954', transport: 'sock

一直能正常运行的本地项目,在IDEA中突然跑不起来 解决步骤: 给application启动类的run方法加上try-catch 打印日志为Failed to determine a suitable driver class,说是数据源有问题 实则是IDEA抽风了 1.尝试删除idea缓存重启In ......
Disconnected transport 39 address target