Here are some ways to generate a secure password.Pre-installeduuidgen comes with linux-utils. Probably pre-installed. If a uuid will do it, bam:uuidgen a08db6c6-66bd-4cd1-a6d0-a7d4c72d0e90Nice for use in portable bash scripts.pwgensudo apt install pwgenpwgen -ycns 64 1-y - include a symbol-c - inclu...

This is how to write bug-free default parameters for your python functions.Dynamic DefaultsA dynamic default is one that changes on each function invocation. An example would be a datetime parameter that is set to the current datetime if not explicit datetime is sent as an argument.Not in Function S...

Others are solving their problems. Solve your own.Parallel ProcessingWe live in a world where other people are thinking. All the time. Oh, and talking. Hot takes from all tech corners. Find an outlet to fit you on the Internet. There are many distractions. Social media feeds never stop.Things seem f...

These are the best typings for React function components in TypeScript.React.FC no moreReact.FC was a nice shortcut. But it seems to actually create trouble down the line -- eg, in generics, defaultProps and return types.Simple and makes senseInstead, do what's simple and makes sense. Just type your...

Here are commands to connect local psql to Postgres in Kubernetes.Find Postgres PodsFirst, find all your kubernetes pods:kubectl get podsWhich will output something like:NAME READY STATUS RESTARTS AGE ... noice-postgresql-0 1/1 Running 0 19h ...Then determine which one is the Postgres pod. Describin...

Here is how I have tested an IntersectionObserver in Reactland.A React Hook for ObserveringLet's say that I wanted to set up an IntersectionObserver using a React hook. Reasonable enough. This tracks whether something has been seen. If it's seen, and only the first time, a callback is executed:impor...

This is a method to test a FastAPI middleware that reads an HTTP header.The MiddlewareLet's make a little FastAPI app. It has one endpoint. The middleware on that endpoint will test for the existence of x_my_header. If it's not set, an exception will be thrown.from fastapi import Depends, FastAPI, H...

Here's an easy tool to lookup definitions in a dictionary in your terminal.Dict ProtocolYou'll need the Internet, because it's not a local dictionary. And you'll need curl, or wget or something to make the network request.Then choose a word to look up. Here, mine is "entail". Then run:curl 'dict://d...

Here are some of my thoughts on how to not worry about performance.Don't Worry, Be HappySufficient unto the day is the evil thereof.In other words, there are enough things to worry about. Attend to what is needful. Don't over-react to what may be in the future.Art of CodingThere will be certain laws...

This is one method of resolving unexpected tokens in TypeScript.The ErrorI ran into this recently when upgrading some libraries, including uuid, specifically. I ran tests, and they failed. The error is big, but it's pretty helpful and descriptive. Here was the error:Error ● Test suite failed to run ...

This is one way to migrate data into fly.io Postgres database.Create a clusterFly.io gives you a handy cli for running commands on its platform. The pg or postgres subcommand will give you access to postgres database actions. If not done already, first, create the Postgres instance:fly pg createThis...

Sometimes you have a file in your local git clone that you want to simply reset to whatever is at origin.You might want to do this if the origin copy is pristine and your local copy is messed up. Even if you did a git reset --hard, it would not be fixed, because even your committed version at HEAD i...

Freeze your poetry requirements into a requirements.txt file.It's poetrypip makes it easy. It's like poetry.We want poetry to be as poetic as pip, but it's not.Easy as pippip freeze > requirements.txtThanksgiving pie-level easy.PoetryWell what about poetry. If you're using it, you've set up your pro...

Here's a tool that will let you convert .heic images to .jpg images on Pop!_OS or Ubuntu derivatives.Install ToolsYou'll need a few dependencies. Some you can get from apt repos:sudo apt install libheif-examplesAnd the other from git:git clone https://github.com/nitinkamra1992/heic2jpgRun ItNow run ...

It's a nightmare that clears up quickly. You rebase, and it produces a merge conflict. Instead of looking at the file contents, you decide to simply take the incoming changes.The ScenarioYou're on your feature branch:git checkout myfeatureYou try to merge the main branch:git rebase mainThis produces...

Here's a way to remove an attribute by key from an immutable dict in Python.Mutable DeleteThe usual answer is to just delete the attribute:>>> obj = { "a": 1, "b": 2 } >>> del obj["a"] >>> obj {'b': 2}But that modifies the obj dict. Modifications to shared state allow for a class of bugs that we can...

Here's how to write the nested loop as a list comprehension.WhyA list comprehension is nice because it's a single expression that returns a value. This better-supports immutable data structures. If one was to use for loops, multiple nested statements would be required and the modification of an exte...

Easily transfer attribute values from one pydantic model instance to another instance.The ModelLet's say that you have a model and one instance:>>> from pydantic import BaseModel >>> class A(BaseModel): ... field: str ... >>> one = A(field="one") >>> one A(field='one')The Tedious CopyWhen you wanted...

If you're in i3, you'll likely want a terminal-based network manager to connect to a network.InstallYou'll want a tool called nmcli, or network manager cli. It's likely already installed. If not, install:# pop!_os sudo apt install nmcli # or, arch sudo pacman -S nmcliSee DevicesTo see the network de...

Here's a method to loop through the values in a union of literals in TypeScript.Union TypeA Union type in TypeScript creates an "OR" relationship between other types. Here is a general union type:type AlphaNumeric = string | numberThese are two general types. We can't loop through these, because the...

Cache bust when you want to ensure a Docker image is built fresh. Docker is nice to cache stuff for you, but sometimes you know better.Headless CMS ScenariosFor instance, let's say you have a headless CMS that will provide data to a static site at build time. You build the site in a Docker image.You...

Your service runs in a Kubernetes cluster. Find and address it.Find the IP of the NodeThere is a node in the cluster. To find the IP of that node, run:$ kubectl get nodes --namespace default -o jsonpath="{.items[0].status.addresses[0].address}" 192.168.64.7%Find the Port of Your AppYour app is runni...

In TypeScript, you can create an object with any keys or allow only certain keys.Any Keys AllowedTo use any keys, indicate that any string is a valid key:type TrackedValues = Record const tracked = { any: true, thing: true }Only Allow Keys from an InterfaceIf you have an interface and want to use th...

Recently I did a pacman -Syu system update. The update failed, however,OutputThe output that I got back from pacman included these kinds of errors:➜ sudo pacman -Syu postgresql ... :: File /var/cache/pacman/pkg/python-pip-22.2.2-2-any.pkg.tar.zst is corrupted (invalid or corrupted package (PGP signa...

Recently I did a pacman -S install, and it failed. It failed for multiple, well-known packages. It should have worked.OutputThe output that I got back from pacman included these kinds of errors:➜ sudo pacman -S postgresql ... error: failed retrieving file 'postgresql-14.3-3-x86_64.pkg.tar.zst' from ...

Get the password value out of AWS Secrets Manager using the CLIAWS has everythingAWS has a manager secrets vault called Secrets Manager. You can store things like passwords in it. Why would you put your passwords in AWS? Well, usually it would be because one of your apps needs to programmatically ac...

Do you love psql but can't stand how the output wraps and doesn't fit on the screen? Here's a tip for you!CLI for Querying Postgreslpsql is a great little tool that comes with the postgres database. It allows you to connect to the database cluster from a cli and run queries.But let's say you have a ...

IDEs are cool and all, but in their magic, they can change configurations that you wanted to stay the same.pytest NormsMany pythonistas write pytests that assume the project root to be the working directory.PyCharm is making the test script that is run the working directory. And when you run a new t...

In Arch, it's the little things. Hang on to them. Cherish your ability to do anything. You've earned it.Here's how to adjust your screen brightness.DocsWho doesn't need help setting up Arch? Arch saves you with some great wiki docs. There's one on many methods for adjusting screen brightness.I had n...

This is a method for debuggging FastAPI with pdb debugger.pdbpdb is a debugger built right into the python standard library. You don't need to install a library. You don't need a fancy IDE.FastAPIThis debugging method should have broad application, but here we will use it in a FastAPI app.FastAPI is...