I'm Ned Batchelder, a Python software developer and community organizer.

• My personal site is nedbatchelder.com.
• I'm an organizer of Boston Python.
• I'm a member of the Python Docs Editorial Board.

You can find me at:

• Mastodon: @nedbat@nedbat.com.
• Bluesky: nedbat.com.
• Libera IRC: nedbat in #python.
• Discord: nedbat in the Python Discord.

My latest blog posts:

• Testing: exceptions and caches, 25 Jan
  Nicer ways to test exceptions and to test cached function results. (read..)
• No more .html, 2 Jan
  My site used to have URLs ending with .html. Not anymore. (read..)
• Generating data shapes with Hypothesis, 21 Dec
  I used Hypothesis to generate random data structure schemas, and then generate random data using them. I learned a lot along the way. (read..)
• A testing conundrum, 18 Dec
  A useful class that is hard to test thoroughly, and my failed attempt to use Hypothesis to do it. (read..)
• and many more..

I maintain a few Python packages, including:

• Coverage.py: The code coverage tool for Python
  
• Cog: Small bits of Python computation for static files
  
• Scriv: Changelog management tool
  
• Dinghy: A GitHub activity digest tool
  
• WatchGHA: Live display of current GitHub action runs
  

I've also made a few informal projects, some mathy art, and some small utilities:

• pkgsample, an simple example of how to package a Python project.
• Truchet images explores Truchet tiles and rendering images with them. Blog post.
• Flourish is a harmonograph explorer. Blog post and live site.
• Stilted is a toy PostScript implementation. Blog post.
• Gefilte Fish is a Python-based DSL for writing Gmail filters. Blog post.
• Pydoctor shows details of your Python environment for troubleshooting.
• Aptus is a Mandelbrot toy.

This is a Markdown page with embedded Python code rendered with cog. See my blog post Cogged GitHub profile for details.

Updated at 2026-02-01 03:32 UTC