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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.

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Q&A Why can't I run freshly-installed Python from the command line on Windows?

Why the installed Python isn't found By default, Windows installers for Python install Python in a folder that is not listed in the PATH environment variable. This means that executables in that f...

posted 12mo ago by Karl Knechtel‭

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Q&A Reusing HTML without rewriting it

I agree with other answers that a static site generator is the best approach. This is something that the original designers of HTML left as an open problem. The problem has now been "solved" by thi...

posted 10mo ago by matthewsnyder‭

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Q&A How can I create and modify a struct over iterations of a loop?

You can use an Option to keep track of the mutable state between iterations. Use as_mut to get a mutable reference to the Option's inner value without consuming the Option. Use unwrap on the muta...

posted 11mo ago by Nisha Jadon‭  ·  edited 11mo ago by GeraldS‭

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Q&A How can I interact with the target widget from a drop event

I managed to do this by changing my on_file_drop() function into a closure and adding the glib::clone! macro: Macro glib::clone Macro for passing variables as strong or weak references into a c...

posted 10mo ago by GeraldS‭

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Q&A How can I create and modify a struct over iterations of a loop?

How can I have a mutable object (for example a vector) that is created inside a loop iteration and needs to be updated in later iterations of said loop? As a concrete example, consider parsing som...

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

Question rust loops mutability ownership
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Q&A Subfolders for package-less module imports

It looks like I was confused, and the problem I am asking about does not actually exist. Perhaps it existed in an older version, or perhaps I am simply misremembering. Regardless, I've seen other p...

posted 1y ago by matthewsnyder‭  ·  edited 1y ago by matthewsnyder‭

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Q&A Why can't I use a library I just installed with Pip?

Problems like this occur, fundamentally, because there is more than one Python installation on the system, and the system is configured in a way that pip installs for a different Python than the on...

posted 1y ago by Karl Knechtel‭  ·  edited 1y ago by Karl Knechtel‭

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Q&A Why does `venv` seem to be missing or broken? Isn't it part of the standard library?

I understand the benefits of virtual environments in general, and specifically I want to use a virtual environment so that I'll have access to Pip without exposing the system Python (i.e., included...

1 answer  ·  posted 12mo ago by Karl Knechtel‭  ·  last activity 12mo ago by Karl Knechtel‭

Question python installation python-venv
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Q&A Installing packages for, and using them with, a specific Python installation

I have multiple installations of Python on my machine. I already know how to choose one to use to run for my code - and therefore, I could also solve the problem for third-party application code. ...

1 answer  ·  posted 1y ago by Karl Knechtel‭  ·  last activity 1y ago by Karl Knechtel‭

Question python pip
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Q&A Installing packages for, and using them with, a specific Python installation

Choosing an environment for third-party libraries The short version of the answer is: Python installations don't normally share libraries because there are too many ways it could go wrong; general...

posted 1y ago by Karl Knechtel‭  ·  edited 1y ago by Karl Knechtel‭

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Q&A Syntax match any 2 spaces at end of line

You could explicitly match the other whitespace, too, to see if that gets around an existing rule.[1] Here are two ways to do that:[2] Match the other whitespace in another rule You could use a \...

posted 1y ago by Michael‭  ·  edited 1y ago by Michael‭

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Q&A What determines where the focus goes back to when clicking on a browser's back button?

Short answer The HTML specification only addresses scroll position restoration behavior, so the main factors that influences where focus will land when navigating the browser history are: user ...

posted 1y ago by toraritte‭  ·  edited 1y ago by toraritte‭

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Q&A Why does `distutils` seem to be missing or broken? Isn't it part of the standard library?

Sometimes when I try to install a third-party library for Python, I get an error saying that either distutils, or some part of it like distutils.core or distutils.util, could not be found. It's sho...

1 answer  ·  posted 1y ago by Karl Knechtel‭  ·  last activity 1y ago by Karl Knechtel‭

Question python installation package
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Q&A can't install apks

After rigorously and scientifically clicking on the apks a bunch of times i could glimpse "termux" in the ever vanishing pop-up, which indeed i had installed. Uninstalled termux and can now instal...

posted 1y ago by JohnRando‭

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Q&A ServletContext matched by more than 1 path

The javadoc for ServletContext.getContextPath() says that It is possible that a servlet container may match a context by more than one context path. I was trying to find any explanation how t...

0 answers  ·  posted 1y ago by morgwai‭

Question java servlets jakarta-ee
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Code Reviews A class to access dicts using attribute syntax

I've used something similar in the past (supporting attribute access as equivalent to dict item access), but I would then always derive the class from dict (or UserDict). This can be useful - but m...

posted 1y ago by mudskipper‭  ·  edited 1y ago by mudskipper‭

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Q&A Why is the `Data.Int` type not a `Semigroup` in PureScript but `String` is?

> "lo" <> "fa" "lofa" > 1 <> 2 Error found: in module $PSCI at :1:1 - 1:7 (line 1, column 1 - line 1, column 7) No type class instance was found for ...

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

Question purescript abstract-algebra
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Q&A What does the static keyword do in C?

static is an unfortunately heavily overloaded keyword. At "file scope" Symbols are said to be at "file scope" if their definition is not inside a function. When the static keyword appears at fil...

posted 1y ago by aghast‭

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Q&A Docker push fails with message "denied: requested access to the resource is denied"

[2024-05-24: I originally wrote a similar answer in that other Q&A site] Summary: Check: Are you logged in? Look in ~/.docker/config.json for auths section The Auth token needs read_repos...

posted 1y ago by milohax‭

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Q&A Can you run Python code on text in VS Code?

If your Python Interpreter is choosen inside of Vscode, you can normally find it on the bottom right of your screen. This is the same Interpreter that the Terminal inside VSCode is using. When yo...

posted 1y ago by SirGamsay‭  ·  edited 1y ago by Alexei‭

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Q&A Add an IDistributedCache to EntityFramework

Is there a standard way to add an IDistributedCached in front of a database using EntityFramework? Something that handles checking the cache for reads, updating the cache on writes, and uses distri...

0 answers  ·  posted 1y ago by rcmosher‭

Question c# entity-framework-core caching database
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Q&A Testing an opaque type's internals

I'd propose (and have generally used, back when I worked on C projects) a fourth option that I don't think gets too far out of line. If I understand the situation correctly, that you want to test ...

posted 1y ago by John C‭

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Q&A How do you fix 'Failed to load the dll hostfxr.dll' when starting an x86 .NET process in a test run via dotnet test?

Remove DOTNET_ROOT environment variable before process start process.StartInfo.EnvironmentVariables.Remove("DOTNET_ROOT"); Another option is to use the x86 .NET SDK for running the tests: ...

posted 1y ago by riQQ‭

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Q&A In javascript is there really a good reason to never check for boolean true || false such as if(var){}else{}?

I am fairly certain this isn't a duplicate so please bear with me. I check for boolean true||false using if() as a matter of course in my programming. I've programmed extensively in PHP, some in C...

3 answers  ·  posted 1y ago by MER‭  ·  last activity 1y ago by hkotsubo‭

Question javascript boolean typeof
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Q&A TypeScript won't recognize cross-module type extensions

I'm trying to write a Node module that extends the functionality of another module (a peer dependency which I do not control) using a register function exposed by the other module. This adds additi...

0 answers  ·  posted 1y ago by Andrew Ray‭

Question typescript node.js npm