Recent questions in Technique[技术]

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python - Filtering a column with an empty array in Pyspark

I have a DataFrame which contains a lot of repeated values. An aggregated, distinct count of it looks like below > df.groupby('fruits').count().sort(F.desc('count' ... 't work! Should show 344 but shows zero. Any idea what I am doing wrong?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to prevent <source> closing tag in jsoup html parser

I am trying to parse html elements by using jsoup html parser but having problem where source end tag is removing by jsoup that is causing the problem in saxparser ... jsoup html parser it is turning to Test Jsoup where end tag is missing....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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298 views

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python PyQt5如何让窗口控件与窗口大小同步变化？

在下面的代码中 self.tableWidget.resize(self.width()-20,self.height()-20) self.tableWidget.move(10,20) 这两行没有起作用？不知为何？ from PyQt5 import QtCore, QtGui, ... sys.exit(app.exec_()) 下面的代码正常 self.account_lineEdit.resize(self.width()-60,widget_h)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Dropbox API with PHP get content of file in Dropbox

I have a WebApp that stores a backup in the cloud of the user. I use the third party libary: http://fabi.me/en/php-projects/dropphp-dropbox-api-client/ Login ... the file only in a string and not as file. The data shouldn't be stored....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Using substitute in multiple function calls

foo <- function(arg) { substitute(arg) } foo1 <- function(parm) { foo(param) } foo1(2 + 2) output is: param How can I use substitute inside foo such that the output will be the expression 2 + 2?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Update multiple records in table by using a reference table SQL Server

I am trying to update a table in SQL by using references from two other tables. I need Table C to be updated with the ID of records from Table A but only where ... B exists in Table A Table A ID ReferenceNumber 1 123 2 321 3 213 4 413...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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maven - Error: Could not find or load main class discord.java.bot.JavaDiscordBot

I am creating a Discord Server Bot and when I build and execute jar file it says Error C:Users[user.name]IdeaProjectsJava-Discord-Botarget>java -jar "Java-Discord-Bot-1.0 ... ----------------- C:Users[user.name]IdeaProjectsJava-Discord-Bot>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Converting ProxyPass rule to haproxy on pfSense webgui

I am using pfSense 2.4.5_1 with haproxy package 0.61_1. I want do create an access control list with corresponding actions to replace my existing Apache ... how this simple example could be done via the webgui of HAproxy on pfSense....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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280 views

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ajax - I just can't run any code that wants to read data from json file

I just can't run any code that wants to read data from JSON file and display it on HTML code!!! ANY KIND OF CODE You can download it on google!! I run the ... past and it worked fine - but when i change API with json file it wont work......

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Is there a way to start/stop a celery task from django views?

I just finished my celery task for my django app, but I'm looking a way now for how to start/stop it through a toggle button on my frontend UI. I know it can ... stop_task and call it through api(URL) to execute it. How can I do it? Thanks!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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161 views

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Java Socket连接的问题

我有一个客户的项目需要访问他们内网的服务，但又要接受互联网的回调，因此部署了两套，一套在他们的内网服务器上，使用192.168.x.x的IP（简称A点），但是能访问外网，另一台则部署在阿里云上面，有固定的IP（简称B点），两个服务通过socket进行通信，由A点主动连接B点，并且B点在有客户端连接之后，就 ... 心跳使用sendUrgentData方法，但是使用过程中遇到了到一定的时间连接必断开的问题，一方是发送数据异常，而一方是读取数据异常有人能详细解释下这是为什么吗？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can i use mcpipy commands on a public minecraft server like 2b2t or similar servers

I am using mcpipy to run python commands in minecraft but it does not work on servers, is there any way i could do like the baritone mod where you can put commands ... it runs but it only works in survival and i want it to work on servers....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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beautifulsoup - Extracting details using Beautiful Soup using Python

I have a following soup - *<a class="view_detail_button" href="/internship/detail/primary-research-data-collection-on-ground-internship-in-bangalore-at-cry- ... -ground-internship-in-bangalore-at-cry-child-rights-and-you1610101064" from it....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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301 views

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如何不让intellij 开发工具老是显示 checking for ingored files

个人觉得有关git的background task令人困扰, 不仅使得开发者无法正常commit , 而且影响电脑性能, 请问该如何解决...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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225 views

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java - How to run spring batch job in scheduled mode in 1 given UAT server, but run manual job in all 3 given UAT servers?

This is related to Spring Batch Scheduling Problem. I have 3 UAT servers (UAT1, UAT2 & UAT3). The task is to run the scheduled batch job in UAT3 ... run. How to modify the approach to include the above problem using spring batch concepts?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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81 views

1 answer

Removing ndarray from list in python

Very strange issue, giving you details for you to reproduce. I have an ndarray x = [[ 58.0376135 ], [4739.44845915]] which is defined as ndarray size (2,1) ... . Strangely, on other examples it does work. How can I make it work here too?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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151 views

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java - Lambda function changing sequence of elements in input

I am new to using Lambda functions in Java. I am observing a particular snippet of code used in an application. This snippet has a list in ... output map channelPerMeterIdStatic has different sequence of Channel if we compare the meterId....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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182 views

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Azure DevOps Pipelines Expressions

Goal is to condition a task custom extension based on which task is used in pipeline. For that we want to use pipelines decorators For example, if any user is ... know how to retrieve task id and use it to condition any further task ?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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kubectl - Kubernetes question during CKA exam, how would you build this?

I was doing the CKA and stumbled upon a question I couldn't figure out. I don't remember all the details, but it goes something like this: Get the top 1 node/ ... cpu <-- this orders by ascending. So you have to hardcode the last node/pod....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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290 views

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python - Why is Dask to_csv saving files in parts?

Preamble for context: I have a sample csv file that has more columns than rows (~300 vs 190), I'm trying to learn how it all works before working ... happening? Additional question: Can I run value_counts() for all columns in a better way?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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454 views

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kotlin - Gradient color on MPAndroidchart in barChat

I have set gradient colour using colour but I want to use 2 colour in gradient.so how we set 3 colours in gradient for barChart....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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368 views

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微信小程序image组件webp格式图片如何显示

今天遇到个问题官方文件上显示image组件只要添加 wepb="true" 就支持wepb格式的图片可是我添加过了还是不支持https://developers.weixin.qq.com/miniprogram/dev/component/image.html 特来求助...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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148 views

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c# - PactNet contract test failing with HttpRequestException and SocketException

I'm trying to write a contract test using PactNet for the following method: public async Task<IEnumerable<Models.RefData.Instrument> GetInstruments(string issuerCountry ... .cs deals with that. What have I done wrong with this?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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500 views

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azure - How to assign a contributor role of subcription to a serviceprincipal using api or how to use subscription object

I try assign a contributor role of subcription to a serviceprincipal using api. Here is the information: subcription ID:b59c6b1b-xxxxxxxxxx serviceprincipal ... to know to assign a contributor role of subcription to a serviceprincipal...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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请问是什么意思啊？ rebasing xxx？怎么去掉？

我本来想删掉一条已经push成功的commit记录。但是没有删除成功。现在ide右下角出现了这个提示：请问是什么意思啊？ rebasing xxx？怎么去掉？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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166 views

1 answer

android - Error app.default.object is not a function

I am new to react-native and I'm trying to help on a project. I started by refactoring the code to have a better file structure. I implemented the barrels ... getAll()) but it's the same with everything else from the db directory. Thanks!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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210 views

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python - I want import my terminal(print) data to database in selenium project, i am using sqlite3

management/commands/pyr.py **from selenium import webdriver from django.core.management.base import BaseCommand from databackup.amazon.models import Amazon print1 = ... access my terminal data to database or I can improve this command...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to meaningfully use additional properties of an assosiation prox object?

Consider a many-to-many relationship of Things where the order of the children (or parents) matters. So the association object ("Link") has an additional ... the "Link" element, or is the associaton object useless in # this scenario?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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