Draft and unpublished posts
I love getting faster in my workflow, something I have recently added in is creating GitHub repos with the cli. I often create little examples of projects, but they just end up on my machine and not anywhere that someone else can see, mostly because it takes more effort to go create a repo. TIL you can create a repo right from the command line and push to it immediately.
gh repo create waylonwalker-cli 
Check out what I created here.
totally guessed at this post’s date
I’m still trying to understand this one, but this is how you force a python object to stop atexit.
Steam achievements and progress for Portal - 26.67% complete with 4/15 achievements unlocked.
Whenever you are installing python packages, you should always use a virtual environment. pip makes this easy to follow by adding some configuration to pip.
Pip is the pacakage tool for python. It installs third-party packages and is configurable. One of the configuration settings that I highly reccommend everyone to add is require-virtualenv. This will stop pip from installing any packages if you have not activated a virtualenv.
python packages often require many different dependencies, sometimes packages are up to date and sometimes they require different versions of dependencies. If you install everything in one environment its easy to end up with version conflict issues that are really hard to resolve, especially since your system environment cannot easily be restarted.
My one exception that I put in my system level packages is pipx. pipx is very handy as it manages virtual environments for you and is intended for command line utilities that would end up in your system env or require you to manually manage virtual environments without it.
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I’ve been trying to adopt pyenv for a few months, but have been completely blocked by this issue on one of the main machines I use. Whenever I start up ipython I get the following error.
ImportError: No module named '_sqlite3
I talked about why and how to use pyenv along with my first impressions in this post
According to #678 I need to install libsqlite3-dev on ubuntu to resolve this issue.
libsqlite3-dev can be installed using apt
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Sometimes you have a pretty old branch you are trying to merge into and you are absolutely sure what you have is what you want, and therefore you don’t want to deal with any sort of merge conflicts, you would rather just tell git to use my version and move on.
The first step is to make sure your local copy of the branch you are moving into is up to date.
git checkout main git pull
It’s also worth updating your feature branch before doing the merge. Maybe you have teammates that have updated the repo, or you popped in a quick change from the web ui. It’s simple and worth checking.
git checkout my-feature git pull
Merge the changes from main into my-feature branch.
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A few of my friends and I all just borked our neovim configs during a plug update, and because none of us were using :PlugSnapshot it was painful to recover from.
https://twitter.com/pypeaday/status/1524882893914398732
Lucky for me I did it on a home machine that I only occasionally edit from, so I could still take the snapshot from a working machine before taking the plunge into fixing everying.
Snapshotting ensures that you install the same git sha on every single plugin. This way when you have multiple machines running your same vim config, they are all on the same sha of each plugin, and you dont end up with weird things happening on one machine. And then you get to decide when you are ready to update, rather than when it breaks.
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I really like the super clean look of no status menus, no url bar, no bookmarks bar, nothing. Don’t get me wrong these things are useful, but honestly they take up screen real estate and I RARELY look at them. What I really want is a toggle hotkey. I found this one from one of DT’s youtube video’s. I can now tap xx and both the status bar at the botton and the address bar at the top disappear.
When you first start qutebrowser It will create some config files in your home directory for you, but they will be empty.
As far as I know qutebrowser will create this default config out of the box for you, if it doesn’t, then somehow it just appeared for me 😁.
❯ tree ~/.config/qutebrowser /home/waylon/.config/qutebrowser ├── autoconfig.yml ├── bookmarks │ └── urls ├── config.py ├── greasemonkey └── quickmarks 2 directories, 5 files
You might want to confvert if you are more comfortable with the python config, or if like me you just want config in one place and you are stealing configuration options from others who have thiers in config.py.
I am often editing my own scripts as I develop them. I want to make a better workflow for working with scripts like this.
Currently I am combining nvim with a which subshell to etit these files like this.
for now lets use my todo command as an example
nvim `which todo`
On first pass I made a bash function to do exactly what I have been doing.
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I am getting ready to do some timeseries analysis on a git repo with python, my first step is to figure out a way to list all of the git commits so that I can analyze each one however I want. The GitPython library made this almost trivial once I realized how.
from git import Repo repo = Repo('.') commits = repo.iter_commits()
This returns a generator, if you are iterating over them this is likely what you want.
commits # <generator object Commit._iter_from_process_or_stream at 0x7f3307584510>
The generator will return git.Commit objects with lots of information about each commit such as hexsha, author, commited_datetime, gpgsig, and message.
I was editing some blog posts over ssh, when I ran into this error. gpg was failing to sign my commits. I realized that this was because I could not answer to the desktop keyring over ssh, but had no idea how to fix it.
This is the error message I was seeing.
gpg failed to sign the data ssh
The fix ended up being pretty simple, but quite a ways down this stack overflow post. This environment variable tells gpg that we are not logged into a desktop and it does not try to use the desktop keyring, and asks to unlog the gpgkey right in the terminal.
export GPG_TTY=$(tty)
This is what it looks like when it asks for the passphrase.
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Sometimes you get a PR on a project, but cannot review it without wrecking your current working setup. This might be because it needs to be compiled, or a new set of requirements. Git worktrees is a great way to chekout the remote branch in a completely separate directory to avoid changing any files in your current project.
# pattern # git worktree add -b <branch-name> <PATH> <remote>/<branch-name> git worktree add -b fix-aws-service-cnsn /tmp/project origin/fix-aws-service-cnsn
This will create a new directory /tmp/project that you can review the branch fix-aws-service-cnsn from the remote origin. If you have setup different remotes locally you can check for the name of it with git remote -v
GitPython is a python api for your git repos, it can be quite handy when you need to work with git from python.
I recently made myself a handy tool for making screenshots in python and it need to do a git commit and push from within the script. For this I reached for GitPython.
How I Quickly Capture Screenshots directly into My Blog
GitPython is a python library hosted on pypi that we will want to install into our virtual environments using...
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Python, click install
Edit the System Environment Variables
Environment Variables button
Add the following path to your users Path Variable
Sometimes you just want python to do something else when you hit an exception, maybe that’s fire a text, slack message, email, or system notification like I wanted.
I am working on a quick and dirty python script designed to take screenshots and land them on my website in a single hotkey. With it being designed to run with a hotkey, if it were to error I would not see it.
I could have gone down a logging route, but honestly this is meant to be quick, dirty, and work on my system for me. I just want to get it in my system notification.
Python exposes sys.excepthook for just this case. Here is what I ended up doing to fire a system notification as well as printing the message. Yaya a log would be mroe appropriate, but this is designed to just get done quick and do the job I want it to do.
I recently was unable to boot into my home Linux Desktop, it got stuck at diskcheck fsck. I found that I was able to get in to a tty through a hotkey.
https://twitter.com/_WaylonWalker/status/1512281106120384519
There’s probably more to it, but to me its a full screen terminal with zero gui, not even your gui fonts. It does log into your default shell so if you have a comfy command line setup it will be here for you even though it looks much different without fonts and full colorspace.
Normally you have 6 TTY’s running, the first is dedicated to your desktop manager, which is your login screen it might be something like gdm or lightdm.
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pygame events are stored in a queue, by default the most suggested way shown in all tutorials “pumps” the queue, which removes all the messages.
You don’t necessarily need a full boilerplate to start looking at events, you just just need to pygame.init() and to capture any keystrokes you need a window to capture them on, so you will need a display running.
import pygame pygame.init() pygame.display.set_mode((854, 480))
Let’s use pygames normal event.get method to get events.
events = pygame.event.get()
printing the events reveal this
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One of the most essential concepts of pygame to start making a game you will need to understand is loading images and blitting them to the screen.
blit stands for block image transfer, to me it feels a lot like layering up layers/images in photoshop or Gimp.
I started by making a spotlight in Gimp, by opening a 64x64 pixel image and painting the center with a very soft brush.
This is what it looks like
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