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Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.

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+2 −0
VS Code can't find node installation due to dynamically setting the PATH

I installed Node.js using NVS to manage my node installations. This works great, except that I haven't been able to figure out how to debug using VS Code. When trying to launch, I receive this err...

0 answers  ·  posted 10mo ago by Moshi‭

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+1 −0
`git submodule foreach git pull` in parallel

I use git submodule foreach git pull to update my submodules. There's quite a few and it appears that foreach is updating them one by one, instead of in parallel. How can I do it in parallel?

1 answer  ·  posted 10mo ago by matthewsnyder‭  ·  last activity 8mo ago by GrantMoyer‭

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+4 −0
How do I pull new changes in git submodules?

I have a git repository with some submodules. When the submodule repos get new commits on the remote, how can I pull them all?

0 answers  ·  posted 10mo ago by matthewsnyder‭

71%
+3 −0
How to solve the "Cannot call from this context" error?

Temporary notice: this is part of an ongoing project of transferring and splitting my canonical from Stack Overflow on common errors in Google Apps Script. As soon as the Q&As are finalized, ...

1 answer  ·  posted 10mo ago by Oleg Valter‭  ·  last activity 10mo ago by Oleg Valter‭

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+3 −0
How to resolve the mypy error "Returning Any from function declared to return 'Dict[str, Any]'" in Python?

I have a function that loads JSON data and is declared to return a dictionary with string keys and values of any type (Dict[str, Any]). However, mypy is raising an error stating that I am returning...

1 answer  ·  posted 10mo ago by ShadowsRanger‭  ·  last activity 10mo ago by Moshi‭

77%
+5 −0
How to move a tag in git?

I have created a tag in my project, using git tag v2023 However, I forgot to commit a few changes. Now I would like to move this tag to the current point (after having committed the changes I had...

1 answer  ·  posted 10mo ago by mr Tsjolder‭  ·  edited 9mo ago by meta user‭

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+2 −2
Slicing a dictionary using a string variable

I am working on adding uncertainty to some of my dynamics within a larger Monte Carlo simulation. As a way to perform multiple operations on each value, I decided to make and use a new function to ...

1 answer  ·  posted 10mo ago by megalomaniac‭  ·  edited 10mo ago by megalomaniac‭

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+2 −0
"Move symbol" refactor for Python in Visual Studio Codium

Is there a way to add support for "move symbol" in Python code for VS Codium? PyCharm can do this, but I am looking for a VSC solution. PyLance can do this, but PyLance itself is closed source, a...

0 answers  ·  posted 10mo ago by matthewsnyder‭  ·  edited 10mo ago by matthewsnyder‭

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+2 −0
Log4j2 not looking for log4j.properties even with the system property set

I am migrating an application from Log4j1 to Log4j2 using the API bridge jar. All references to the log4j1.jar have already been removed. I set the system property in Websphere as a JVM argument -...

1 answer  ·  posted 10mo ago by tarhalda‭  ·  edited 10mo ago by Alexei‭

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+2 −0
Redux Toolkit Issue with Managing States

I am all new with using Redux Toolkit, I followed the official documentation to setup the store: // store.ts import { configureStore, ThunkAction, Action, combineReducers } from '@reduxjs/toolkit...

0 answers  ·  posted 10mo ago by boudagga.ma94‭

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+1 −0
What can be used in react-native instead of an html label tag to achieve the same result?

I wanna make a form in React native. A field in this form in (non-native) React would be like this: <div> <label htmlFor="lastName">Last Name:</label> <input type="text...

0 answers  ·  posted 10mo ago by andre‭  ·  edited 10mo ago by andre‭

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+2 −0
Maven exec:exec fails to see executables

I am stumped at Maven exec plugin. Running mvn exec:exec -Dexec.executable="curl" (or "echo") works. But when running mvn exec:exec or mvn exec:exec@b (or @a) it fails saying The parameter 'exe...

1 answer  ·  posted 10mo ago by LAFK‭  ·  last activity 11d ago by mirabilos‭

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+2 −6
How do I use an existing AI model to classify pornographic images? [closed]

In the last few months, AI has advanced considerably, notably in the area of generating images. We now have powerful models like DALL-E, Stable Diffusion, etc. These are quite competent at generati...

0 answers  ·  posted 10mo ago by matthewsnyder‭  ·  closed 10mo ago by Alexei‭

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+1 −2
Program freezing in `post_comments_to_lemmy` function due to potential infinite loop

I'm experiencing an issue where my program appears to freeze when executing the post_comments_to_lemmy function. This function fetches comments from the GitHub API and posts them to a Lemmy instanc...

1 answer  ·  posted 10mo ago by ShadowsRanger‭  ·  last activity 10mo ago by __blackjack__‭

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+6 −0
How to use function composition for applying a function to first elements of a list?

Can anyone explain to me why my Haskell function gives rise to a type-definition error? Originally, I wrote the following function to subtract one from the first n elements in a list: dec_first :...

2 answers  ·  posted 10mo ago by mr Tsjolder‭  ·  last activity 10mo ago by mauke‭

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+2 −0
Does Snowflake NATURAL JOIN support outer-style join?

I like using NATURAL JOIN in Snowflake, because I find it more elegant than explicit join clauses. However, it appears that the natural join behaves similar to an inner join, in that null values o...

1 answer  ·  posted 10mo ago by matthewsnyder‭  ·  edited 10mo ago by matthewsnyder‭

81%
+7 −0
How do I add functionality to the back button?

How do I add functionality to the back button in Android without reimplementing the back button entirely? Prior to last year, I would just call onBackPressed() and then simply override it: overri...

1 answer  ·  posted 10mo ago by Ullallulloo‭  ·  edited 10mo ago by Ullallulloo‭

66%
+2 −0
Can I package a database other than SQLite with a Flutter app?

Flutter supports packaging a SQLite instance with a Flutter app using the Sqflite plugin. I do not like the speed of SQLite or the fact that it does not enforce column datatypes and want to use som...

0 answers  ·  posted 10mo ago by tarhalda‭  ·  edited 10mo ago by tarhalda‭

83%
+8 −0
What are disadvantages of static functions (ie functions with internal linkage) in C?

Functions in C have external linkage by default. In other words, the storage class specifier extern is applied to functions by default, with the effect that they are visible to all translation unit...

3 answers  ·  posted 11mo ago by Lover of Structure‭  ·  last activity 10mo ago by Dirk Herrmann‭

57%
+2 −1
Can pandas be used as a database backend for persistent storage?

Question What is the current state of the art database app? How does it compare to SQL? Can pandas be used in place of either? If not, is there something that bridges the gap between SQL and pand...

2 answers  ·  posted 11mo ago by mcp‭  ·  last activity 11mo ago by matthewsnyder‭

63%
+5 −2
Prevent vscode from inserting new lines in the middle of my code on format.

I am cleaning up java code in vscode to make it more readable. When I format my document there are instances when vscode inserts new line character when I don't want it. Here I show 2 examples of w...

1 answer  ·  posted 11mo ago by Vanity Slug ❤️‭  ·  edited 11mo ago by Vanity Slug ❤️‭

77%
+5 −0
Programmatically import, edit and export DBC files

I am looking for a way to programmatically edit and save .dbc files that are meant for J1939 CAN communication. I have a few large files that need to be compared/edited. Being able to import, edit...

1 answer  ·  posted 11mo ago by HinkyDinky‭  ·  last activity 10mo ago by HinkyDinky‭

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+5 −0
Lemmy API: how to get list of followed/subscribed communities.

Context Using the lemmy API, I'm trying to get a list of sublemmies (lemmy communities) that a user is following. Reading the documentation, I using the /site endpoint, I should be able to get a ...

1 answer  ·  posted 11mo ago by elvis_depresley‭  ·  last activity 10mo ago by tgxn‭

71%
+3 −0
Problems with Google Apps Script API JavaScript "How to... Execute function"

As this is the first question about Google Apps Script, here is a very brief description: it is a platform that helps people easily get programmatic access to Google apps data like Gmail messages, ...

1 answer  ·  posted 11mo ago by Wicket‭  ·  last activity 11mo ago by Wicket‭

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+6 −0
How do I find disjoint sets in a dataset

I have a dataset of car bookings like this: car_id user_id 1 1 2 1 1 2 3 3 1 2 3 3 In this dataset, two separate groups/sets of cars and users...

2 answers  ·  posted 11mo ago by andreas‭  ·  edited 11mo ago by matthewsnyder‭

77%
+5 −0
Possible drawbacks for having duplicate local sources of the project tracking the same Git remote

Context I have started working on an Angular upgrade for a medium-sized project (from v. 10 to v. 15) and this is a rather long activity that is interrupted by other changes that need to be perfor...

2 answers  ·  posted 11mo ago by Alexei‭  ·  last activity 11mo ago by Andrew‭

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+0 −0
How to move Rancher Desktop virtual disk file to another location?

I am using Rancher Desktop as an alternative to Docker Desktop. After using docker for a while I have noticed that C:\Users\user\AppData\Local\Docker\wsl\data\ext4.vhdx has grown quite a bit (20GB+...

1 answer  ·  posted 11mo ago by Alexei‭  ·  last activity 11mo ago by Alexei‭

77%
+5 −0
How to configure Python pip to look for packages in a private index first?

When I run pip install foo, pip looks for foo in PyPi. I want it to look for it first in a private repo, let's say pypi.bar.com. Only if foo cannot be found in pypi.bar.com, should pip then look f...

1 answer  ·  posted 11mo ago by matthewsnyder‭  ·  last activity 11mo ago by tripleee‭

71%
+3 −0
Running mvn validate does not show rules passed message though it should

My large, multi-module Maven project validation (Maven Enforcer plug-in) is playing tricks on me. moduleA> mvn validate correctly finds all modules runs enforcer on all of them displays co...

0 answers  ·  posted 11mo ago by LAFK‭

75%
+4 −0
How to make Husky run git hook?

How to make Husky run git hook? I have a working git hook, prepare-commit-message, but the moment Husky was installed, the hook stopped working. Not finding much luck, I then tried to make it a "H...

1 answer  ·  posted 11mo ago by LAFK‭  ·  edited 11mo ago by Alexei‭

60%
+1 −0
What is lifting state up in Flutter?

What does lifting state up in Flutter mean, and how does it work?

1 answer  ·  posted 11mo ago by tarhalda‭  ·  last activity 11mo ago by tarhalda‭

71%
+3 −0
Clear selectManyMenu component if user unselects item in JSF 2

I am working with JSF 2.3 and have a selectManyMenu component that is marked as required but that I want to be cleared if the user unselects all items. Currently, the user can unselect all items, b...

1 answer  ·  posted 11mo ago by tarhalda‭  ·  edited 8mo ago by BalusC‭

77%
+5 −0
Using DBUS and GTK in one perl program

Perl is by far the language I have the most experience with, and I have (big) parts of the functionality I want in the new program in existing programs. So I'm looking for a way to do this in perl,...

1 answer  ·  posted 11mo ago by Grove‭  ·  last activity 11mo ago by deleted user

75%
+4 −0
How to use self referential N-M relationship to make 2 users friends using RedBean PHP ORM?

I am working with PHP and RedBean PHP ORM. I have a table user like so: id | username ---|--------- 1 | Alice 2 | Bob I want Alice and Bob to become friends. So I want to create M-M juncti...

0 answers  ·  posted 11mo ago by Vanity Slug ❤️‭

75%
+7 −1
Automatically install all packages needed

When running various Python scripts, I often need to do this annoying dance: $ python script.py ... ModuleNotFoundError: No module named 'foo' $ pip install foo $ python script.py ... Module...

3 answers  ·  posted 11mo ago by matthewsnyder‭  ·  last activity 9mo ago by meta user‭

75%
+4 −0
DocuSign eSignature API SDK: java.lang.NoClassDefFoundError errors.

I am trying to implement DocuSign's eSignature REST API by using Java SDK. I am following instructions here: https://developers.docusign.com/docs/esign-rest-api/sdks/java/setup-and-configuration/ ...

1 answer  ·  posted 11mo ago by Vanity Slug ❤️‭  ·  last activity 11mo ago by Vanity Slug ❤️‭

66%
+2 −0
How can I return XML from BeforeSendRequest and AfterReceiveReply to the calling method in a thread-safe way?

We have a console application using the Azure WebJob SDK. The WebJob relies on a WCF service using SOAP, which it accesses through a DLL we wrote that wraps the auto-generated WCF types in somethin...

1 answer  ·  posted 11mo ago by Celarix‭  ·  edited 11mo ago by Alexei‭

75%
+4 −0
Postgres command-line variable substitution error

According to the psql (version 14) man page, it's possible to set variables using the -v command-line parameter, then use the variable in a query, automatically quoted correctly, with :'variable_na...

1 answer  ·  posted 11mo ago by Andrew‭  ·  last activity 11mo ago by matthewsnyder‭

75%
+4 −0
How to prevent Visual Studio Code from opening an extra blank window?

When I run code . in a directory, Visual Studio Code opens two windows. The first is empty, the second shows directory I was in as expected. I checked ~/.config/VSCode/Workspaces and there is only...

2 answers  ·  posted 11mo ago by matthewsnyder‭  ·  last activity 11mo ago by matthewsnyder‭

50%
+1 −1
How to migrate after SQLalchemy schema changes?

When I set up my object mappings with SQLalchemy, everything works well enough. It even creates the tables for me if they don't exist. However, if I decide to add/remove columns (aka fields) from ...

0 answers  ·  posted 11mo ago by matthewsnyder‭  ·  edited 11mo ago by Alexei‭

84%
+9 −0
grep AND search for multiple words in files

I have text (xml actually) files. Some files contain 'foo', some contain 'bar', some contain neither and some contain both. It's the both I'm interested in. How do I do an AND search on words in...

5 answers  ·  posted 11mo ago by mcalex‭  ·  last activity 11mo ago by tripleee‭

75%
+4 −0
When is it OK for duplication of information between message header and payload in a distributed software application?

A friend is involved in rewriting a distributed software application and while discussing the architecture, we noticed that in many cases the messages had duplication between headers and payload. ...

1 answer  ·  posted 12mo ago by Alexei‭  ·  last activity 12mo ago by Derek Elkins‭

66%
+2 −0
Generating nested repeating values with JSON Generator

Hi, I'm trying to use the JSON Generator to create data with nested repeating values. I want to create 100 objects with an ID, Name, and Code. The Id is incremented from 0 to 99, but the Code (pr...

1 answer  ·  posted 12mo ago by mcalex‭  ·  last activity 12mo ago by __blackjack__‭

70%
+5 −1
Queries to count points lying on arbitrary line

Suppose we have N points on XY plane, ie. (x, y) and x, y are integers and multiple queries where each query is of the form y = mx + c and m, c are integers. Is it possible to count number of poin...

2 answers  ·  posted 12mo ago by theabbie‭  ·  last activity 11mo ago by matthewsnyder‭

75%
+4 −0
Are there other reasons why useEffect might not be defined apart from not importing it?

I am creating a button that once clicked will change from off to on with react and i am also creating a responsive clock through useEffect. Yet the code still return that useEffect is undefined th...

2 answers  ·  posted 12mo ago by Brian‭  ·  last activity 12mo ago by jmathew‭

71%
+3 −0
How do I return ISO day of week in Redshift?

I have a query summarizing some transaction data that I'd like to summarize by day of week. For my use case, I need to return weekdays formatted according to ISO 8601, so Monday must be the first d...

1 answer  ·  posted 12mo ago by Sigma‭  ·  last activity 12mo ago by trichoplax‭

77%
+5 −0
Storing more bytes than a union member has, but less than the union size, with memcpy(3)

Let's say we have an object, we store it in a union (into some other narrower type, but with memcpy(3), so it's allowed --I guess--), and then read it from the union via it's original type (so no a...

2 answers  ·  posted 12mo ago by alx‭  ·  last activity 11mo ago by Lundin‭

77%
+5 −0
Library that is platform-specific via selective compilation?

The proposed library would sit alongside cross-platform libraries in Xamarin apps for iOS and Android. However, it would include files with names like MyLibraryFile.android.cs MyLibraryFile.ios...

1 answer  ·  posted 1y ago by plod‭  ·  last activity 12mo ago by Olin Lathrop‭

71%
+3 −0
Is it possible to get the current function in a trace function?

I'm trying to subclass pdb to have a debugger that, in case of a call to a decorated function, can "step in" the decorated function directly and skip the decorator content altogether. A well-behave...

1 answer  ·  posted 1y ago by luser‭  ·  last activity 1y ago by r~~‭

75%
+4 −0
Can Matlab packages have subdirectories?

I'd like to organize my Matlab packages into folders. However, if I try to lay out my code like this +MyPackage |---foo.m |---SubDir |---bar.m then I'm unable to reach bar. F...

1 answer  ·  posted 1y ago by zaen‭  ·  last activity 1y ago by zaen‭