[](https://nedbatchelder.com) [](https://hachyderm.io/@nedbat) [](https://bsky.app/profile/nedbat.com) [](https://about.bostonpython.com) [](https://discord.gg/python) [](https://github.com/sponsors/nedbat) [](https://stackoverflow.com/users/14343/ned-batchelder) [](https://pypi.org/user/nedbatchelder) [](https://nokings.org)      [](https://nedbatchelder.com/blog/202411/my_politics.html)      [](https://stand-with-ukraine.pp.ua/#support-ukraine)      [](https://nedbatchelder.com/blog/201207/my_mom_got_married.html)      [](https://nedbatchelder.com/blog/202006/black_lives_matter.html) I'm **Ned Batchelder**, a Python software developer and community organizer. - My personal site is [nedbatchelder.com][nedbat]. - I'm an organizer of [Boston Python][bp]. - I'm a member of the [Python Docs Editorial Board][pdeb]. You can **find me** at: - Mastodon: [@nedbat@nedbat.com][mastodon]. - Bluesky: [nedbat.com](https://bsky.app/profile/nedbat.com). - Libera IRC: nedbat in [#python][libera]. - Discord: nedbat in the [Python Discord][discord]. My latest **[blog][blog]** posts: - **[No more .html](https://nedbatchelder.com/blog/202601/no_more_html)**, 2 Jan
My site used to have URLs ending with .html. Not anymore. *([read..](https://nedbatchelder.com/blog/202601/no_more_html))* - **[Generating data shapes with Hypothesis](https://nedbatchelder.com/blog/202512/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..](https://nedbatchelder.com/blog/202512/generating_data_shapes_with_hypothesis))* - **[A testing conundrum](https://nedbatchelder.com/blog/202512/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..](https://nedbatchelder.com/blog/202512/a_testing_conundrum))* - **[Autism Adulthood, 3rd edition](https://nedbatchelder.com/blog/202511/autism_adulthood_3rd_edition)**, 18 Nov
My wife’s book is out today, you should buy it. *([read..](https://nedbatchelder.com/blog/202511/autism_adulthood_3rd_edition))* - and [many more][blog].. I maintain a few [**Python packages**][ned_pypi], including: - [**Coverage.py**](https://github.com/nedbat/coveragepy): The code coverage tool for Python
[](https://pypi.org/project/coverage) [](https://github.com/nedbat/coveragepy/commits) [](https://pypistats.org/packages/coverage) [](https://hachyderm.io/@coveragepy) - [**Cog**](https://github.com/nedbat/cog): Small bits of Python computation for static files
[](https://pypi.org/project/cogapp) [](https://github.com/nedbat/cog/commits) [](https://pypistats.org/packages/cogapp) - [**Scriv**](https://github.com/nedbat/scriv): Changelog management tool
[](https://pypi.org/project/scriv) [](https://github.com/nedbat/scriv/commits) [](https://pypistats.org/packages/scriv) - [**Dinghy**](https://github.com/nedbat/dinghy): A GitHub activity digest tool
[](https://pypi.org/project/dinghy) [](https://github.com/nedbat/dinghy/commits) [](https://pypistats.org/packages/dinghy) - [**WatchGHA**](https://github.com/nedbat/watchgha): Live display of current GitHub action runs
[](https://pypi.org/project/watchgha) [](https://github.com/nedbat/watchgha/commits) [](https://pypistats.org/packages/watchgha) I've also made a few informal projects, some mathy art, and some small utilities: - [pkgsample](https://github.com/nedbat/pkgsample), an simple example of how to package a Python project. - [Truchet images](https://github.com/nedbat/truchet) explores Truchet tiles and rendering images with them. [Blog post](https://nedbatchelder.com/blog/202208/truchet_images.html). - [Flourish](https://github.com/nedbat/flourish) is a harmonograph explorer. [Blog post](https://nedbatchelder.com/blog/202101/flourish.html) and [live site](https://flourish.nedbat.com/). - [Stilted](https://github.com/nedbat/stilted) is a toy PostScript implementation. [Blog post](https://nedbatchelder.com/blog/202208/stilted.html). - [Gefilte Fish](https://github.com/nedbat/gefilte) is a Python-based DSL for writing Gmail filters. [Blog post](https://nedbatchelder.com/blog/202103/gefilte_fish_gmail_filter_creation.html). - [Pydoctor](https://github.com/nedbat/pydoctor) shows details of your Python environment for troubleshooting. - [Aptus](https://nedbatchelder.com/code/aptus/v3.html) is a Mandelbrot toy.

This is a [Markdown page with embedded Python code][readme.md] rendered with [cog][cog]. See my blog post **[Cogged GitHub profile][blog_post]** for details. *Updated at 2026-01-03 14:40 UTC* [nedbat]: https://nedbatchelder.com "My site with blog, talks, etc" [blog]: https://nedbatchelder.com/blog "My blog" [mastodon]: https://hachyderm.io/@nedbat [discord]: https://pythondiscord.com [libera]: https://libera.chat [bp]: https://bostonpython.com "The Boston Python home page" [pdeb]: https://python.github.io/editorial-board/ [ned_pypi]: https://pypi.org/user/nedbatchelder "The list of all my packages on PyPI" [cog]: https://github.com/nedbat/cog "The cog repo on GitHub" [readme.md]: https://github.com/nedbat/nedbat/blob/main/README.md?plain=1 "The raw source for this GitHub profile" [blog_post]: https://nedbatchelder.com/blog/202409/cogged_github_profile.html "Discussion of how this page is constructed"