Minimal VSCode settings and extensions configuration for Python with ruff

2023-12-09

howto

365 words 2 mins read

This morning while working on my AoC submission, I wondered what the simplest procedure was for sharing a minimal setup for editing Python in Visual Studio Code using ruff for formatting, linting and import sorting, and doing all of that automatically on save.

It turns out that you can just store the following extensions.json and settings.json in the .vscode sub-directory of your source directory, and all of the above will be done. As a bonus, you can use the ruff.toml example below to customise your ruff setup.

Fixing hunspell 1.7.0 for Emacs 29 on Windows

2023-11-14

howto

698 words 4 mins read

Install and configure hunspell

Imagine this: For intricate reasons, you have decided to get your Emacs setup working on Windows as well, although you have a perfectly fine and working WSL2 configuration.

You’re surprised by how well this goes (winget install GNU.Emacs FTW!), until you decide to setup the hunspell spell checker…

It starts pretty well, when you are able to install hunspell with a simple winget install FSFhu.Hunspell, after which you download a set of English dictionaries from the LibreOffice extension, and then set your DICPATH environment variable to point to the directory containing all of the unpacked .aff and .dic files.

Open message:// links with mu4e or fastmail

2023-08-08

howto

169 words 1 min read

This is a small variation of the 2019 post on linking to emails from Org mode using Thunderbird, where instead we show how to open the message:// links with mu4e if active, or the fastmail web-app if it is not.

You might remember that message://msg-id-here links represent one of the better ways to link to emails from your PKM systems.

Code

Below is the code. Let me know in the comments if you have any questions.

ThreadPoolExecutor context manager with nested tasks

2023-02-12

howto

548 words 3 mins read

Introduction

Python’s ThreadPoolExecutor’s context manager is a really neat way to run a bunch of (I/O) work in a thread pool, and then clean everything up when the context is exited.

Something like this:

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with ThreadPoolExecutor() as executor:
    for i in range(N):
        executor.submit(my_function, arg1, arg2)

    
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    Unison file synchronization directly via the WSL bridge
    
       2022-10-22 
      
           howto 
          
         706 words 
         4 mins read 
    
  
  
  
    
      Background
For years and years now, I keep all of my work, including my checked-out source
code, in some form of file synchronization system.
The advantages of having all of your files always up to date on all of the
comptuters you work on are considerable.
More practically, I often get up from my work computer, and then continue on my
laptop, or on my home computer, without having to think about it, and
especially without having to abuse git commits purely to be able to transfer to
another machine.
    
    
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    Modify md-roam for frontmatter-less operation
    
       2022-09-24 
      
           howto 
          
         667 words 
         4 mins read 
    
  
  
  
    
      Background
My notes database consists primarily of Emacs Org mode files, interspersed with
a small number of markdown files, some of them from previous note-taking
systems (for example, I went through a Gollum stage early in 2014, according to
my notes then), and some of them for easier mobile consumption and production.
I recently discovered nobiot’s md-roam Emacs package which makes it possible
for these markdown files to show up (in sheep’s clothes, as it were) amongst
all of my usual org-roam nodes.
    
    
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    Conservative rendering and liberal parsing of ISO 8601 timestamps in Python
    
       2022-08-05 
      
           howto 
          
         139 words 
         1 min read 
    
  
  
  
    
      You’ll see in Python bug 37962 that datetime.isoformat() and
datetime.fromisoformat() use a restricted subset of the ISO 8601 timestamp
formatting standards.
This is similar to the subset followed by W3C.
Recently, we ran into the specific issue that fromisoformat() rejects inputs
where the timezone is specified as +hhmm instead of +hh:mm.
Both are allowed by ISO 8601, but only the latter is part of the restricted subset.
    
    
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