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Bug #915: Please help
Updated: this was solved on Hacker News. Details in Bug #915: solved!
Ned Batchelder
Ned Batchelder's personal web site, blog, writings, software, math, parenting, autism
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Visit nedbatchelder.com → RSS feedOn Hacker News Aug 2009 – Sep 2025
Software Engineering 10Life, Learning & Writing 3Web & Frontend 2Math & Algorithms 2Tools & Productivity 1Society, Policy & Culture 1
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Bug #915: Solved
Yesterday I pleaded, Bug #915: please help! It got posted to Hacker News, where Robert Xiao (nneonneo) did some impressive debugging and found the answer.
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What’s in Which Python
A concise summary of Python’s versions, and what’s in each.
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Testing is better than data structures and algorithms
People should spend less time learning DSA, more time learning testing.
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Why a mock doesn’t work
Mocking is a powerful technique for isolating tests. But yours isn’t working. Why!?
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On Python security amidst recent Rails/YAML vulnerabilities
The Rails community has had a few high-profile security issues this week. They are well-summarized, with an alarming list of what follow-ons to expect, by Patrick McKenzie: What the Rails Security Issue Means for Your Startup.
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GitHub monoculture
I continue to notice an unsettling trend: the rise of the GitHub monoculture. More and more, people seem to believe that GitHub is the center of the programming universe.
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I fixed a bug in Python
About a month ago, I found a bad-behavior bug in the tokenize standard library module, and with help from Aron Griffis, submitted a patch to fix it. Yesterday was a Python bug day, and Ezio Melotti merged my change, so I have officially contributed to CPython!
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Python iteration
This is a presentation I gave at PyCon 2013. You can read the slides and text on this page, or open the actual presentation in your browser (use right and left arrows to advance the slides), or watch the video:
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Pragmatic Unicode
Unicode can be confusing. Here’s a “just the facts I need” presentation about how to handle it correctly.