DaFoster

My name is David Foster. Check out the cool software I’ve written!

My articles may also be of interest:

Featured Articles ⭐

• Feb 16, 2021 » Building web apps with Vue and Django (2024) - The Ultimate Guide ✚
• Nov 24, 2018 » Why isn't the external link symbol in Unicode?
• Mar 25, 2017 » How to Design Large Programs with Abstraction and Encapsulation
• Sep 13, 2015 » State of the Union in Programming Languages (2015)
• Dec 20, 2014 » Spectrum of Languages by Hardware Distance
• May 11, 2013 » Programming for Perfectionists (P4P): A Book Outline
• Apr 21, 2013 » Exploring Onionland: The Tor .onion Darknet
• Feb 20, 2013 » Visual Guide to Programming Language Properties
• Jan 15, 2013 » Things I Wish I Knew Before Working in Industry ✚
• Jan 08, 2013 » Programming is Fun. But What Matters is Solving a Real Problem.

Recent Articles

• Mar 13, 2025 » Dumping a traceback when an error message is printed
• Aug 18, 2024 » Effective Code Reviews
• Jun 16, 2024 » PyCon US 2024 Highlights
• Mar 24, 2024 » Redis relicensing: Why is this a problem?
• Feb 28, 2024 » Bulkheads: A pattern for handling unexpected errors in software
• Oct 20, 2023 » Debugging a deadlock in Python
• Oct 12, 2023 » Custom file icons, folder icons, and app icons on different operating systems
• Aug 31, 2023 » How to make a binary .deb Debian package using Docker
• Feb 22, 2023 » Debugging bash scripts with the bashdb debugger
• Jul 10, 2022 » Crystal Web Archiver 1.3.0b Released!

See all articles…

Featured Projects ⭐

CompressedTextField for Django and MySQL

A large text field, stored compressed in the database, for Django and MySQL.

TypedDict

Python typechecker support for recognizing structured dictionaries with specific named keys mapped to specific value types. Ubiquitous in JSON.

Crystal: A Website Downloader

Downloads websites in an archival-friendly format.

RDiscount

Converts Markdown text to HTML, in Ruby. Includes many useful Markdown extensions.

Miscellaneous

Much information related to my activities prior to 2010 can also be found on my old site.