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python - Why does Tkinter image not show up if created in a function?

This code works: import tkinter root = tkinter.Tk() canvas = tkinter.Canvas(root) canvas.grid(row ... stackoverflow.com/questions/65862136/tkinter-canvas-is-not-showing-background...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to transpose a Pyspark Dataframe?

This question already has answers here: question from:https://stackoverflow.com/questions/65862102/how-to-transpose-a-pyspark-dataframe...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - (Py)Mongo can connect remotely but unauthorised when connecting locally

I have a MongoDB instance on a Digital Ocean droplet. I can remote into it using PyMongo and ... 65862068/pymongo-can-connect-remotely-but-unauthorised-when-connecting-locally...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to open a URL using browser after scanning QR code in C#?

I have created a QR code. I want to open my site after scanning the QR code, but it always only shows text. How can ... /how-to-open-a-url-using-browser-after-scanning-qr-code-in-c...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git - Only push files with certain extensions to GitHub

I am working on a data analysis project whose directory structure looks like following pipeline1.py pipeline2.py . ... /65862018/only-push-files-with-certain-extensions-to-github...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Beautiful Soup cannot scrape after the first div tag

Please see below. I would like to scrape for the restaurant name that is in Popeyes Please see the image ... /65862006/beautiful-soup-cannot-scrape-after-the-first-div-tag...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to import a module that has a dash "-" in its name without renaming it

Python version : Python 3.8.5 (default, Sep 4 2020, 02:22:02) With a git submodule, I got some code that I ... to-import-a-module-that-has-a-dash-in-its-name-without-renaming-it...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Woocommerce-admin extension: changes to js/index.js have no effect

I am trying to write an extension for woocommerce-admin analytics. I have installed an example extension and it runs ... -admin-extension-changes-to-js-index-js-have-no-effect...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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concatenation - Concatenating and adding prefix to columns

I need to concatenate several dataframes for different cryptocurrencies. They all have exactly the same column ... /questions/65862443/concatenating-and-adding-prefix-to-columns...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Active Record .includes with where clause

I'm attempting to avoid an N+1 query by using includes, but I need to filter out some of the ... ://stackoverflow.com/questions/65862415/active-record-includes-with-where-clause...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Application crashes whenever i sign out

This question already has answers here: question from:https://stackoverflow.com/questions/65862367/application-crashes-whenever-i-sign-out...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - Python function to decompose a number in all possible sum of squares

I am trying to solve this problem for days now, no strategy came to my mind. We need to decompose a number ... python-function-to-decompose-a-number-in-all-possible-sum-of-squares...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - installation of package dlib in conda

I need your help really. I'm trying to include the dlib package in my conda application (python 3.8 ... //stackoverflow.com/questions/65862317/installation-of-package-dlib-in-conda...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - CSS - Div not taking up entire width

For some reason my html and css isn't taking up the entire width of the page, even though I set margin ... /stackoverflow.com/questions/65862308/css-div-not-taking-up-entire-width...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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graph - How to check u-v can be arbitrarily negative length using Floyd Warshall algorithm?

If i have q query [start, end] in the graph. How to check whether: the length of start to end can be ... -check-u-v-can-be-arbitrarily-negative-length-using-floyd-warshall-algorit...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Moment of threads creation

When is the moment when threads determined in runtime.GOMAXPROCS(n) will be created: When we launch binary ... ://stackoverflow.com/questions/65862237/moment-of-threads-creation...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to randomly choose a list out of 4 lists?

I have 3 lists, every time I want randomly pick any of the items. How can I do that? fruit_list = ['apple', ... com/questions/65862150/how-to-randomly-choose-a-list-out-of-4-lists...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - What could be the reason that Pycharm is not rendering graphviz.Source(...)? (Mac)

I tried to run the following code: import pandas as pd from sklearn.model_selection import train_test_split from ... -reason-that-pycharm-is-not-rendering-graphviz-source-ma...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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nginx - How to let the backend api handle https certificate?

I'm new to nginx. I have a machine, behind my router, that runs a server and handles correctly 80 and ... /questions/65862779/how-to-let-the-backend-api-handle-https-certificate...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - Create a grid with variable card heights using material-ui react

I am trying to create a grid similar to this website by using Material-UI. However when the height of one card ... /create-a-grid-with-variable-card-heights-using-material-ui-react...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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automation - Loop function to fill Crosselling template

I need to create a file containing information on crosselling for my webshop. In my example file you' ... .com/questions/65862695/loop-function-to-fill-crosselling-template...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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firebase - FlutterFirebaseCorePlugin.java uses or overrides a deprecated API

Ok so I run my program without importing firebase core, firebase auth and cloud firestore, and my ... /65862666/flutterfirebasecoreplugin-java-uses-or-overrides-a-deprecated-api...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Convert touch events to mouse events within canvas in iframe on a webview

I'm porting a huge game collection of web based games to run on Windows touch devices (i.e. Kiosk mode devices ... touch-events-to-mouse-events-within-canvas-in-iframe-on-a-webview...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - Integration of sin x dx problem in python programming implementation

I want to implement this integration in Python: So far I did the code below but it is not making ... 65862611/integration-of-sin-x-dx-problem-in-python-programming-implementation...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Facebook Login in React native, compile error

I'm trying to implement Facebook Login in react native. I followed every step in this guide: https:// ... .com/questions/65862587/facebook-login-in-react-native-compile-error...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Why spread operator converts object param to one item array?

"use strict"; let obj1 = { foo: 'bar', x: 42 }; function abc(...aaa) { console.log(aaa); } ... .com/questions/65862554/why-spread-operator-converts-object-param-to-one-item-array...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Simple Android layout width is Misbehaving

I have kept the layout_width as match parent. On first load the view is as expected. But on ... stackoverflow.com/questions/65862523/simple-android-layout-width-is-misbehaving...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ajax - Django: How to render real time data in template from another app

I would like to ask for help for my following issue: Django project with two apps looks like this: Project CustomerApp ... how-to-render-real-time-data-in-template-from-another-app...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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