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# tutorial

Tutorial is a general purpose tag. We welcome all types of tutorial - code related or not! It's all about learning, and using tutorials to teach others!

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Generating a Valid RSS Feed From Scratch in Stdlib Python

Generating a Valid RSS Feed From Scratch in Stdlib Python

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10 min read
Every Link Preview in Your App Is the Same 30 Lines You Haven't Written Yet

Every Link Preview in Your App Is the Same 30 Lines You Haven't Written Yet

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7 min read
How to Make Sense of a HAR File Without DevTools

How to Make Sense of a HAR File Without DevTools

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8 min read
Text Generation Before Transformers: Building a Markov Chain in 200 Lines of Python

Text Generation Before Transformers: Building a Markov Chain in 200 Lines of Python

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10 min read
When does this cron run next? Give it its own 70 MB container

When does this cron run next? Give it its own 70 MB container

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8 min read
Counting Moras: Why Your 5-7-5 Haiku Validator is Probably Wrong

Counting Moras: Why Your 5-7-5 Haiku Validator is Probably Wrong

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9 min read
Building a Hash Identifier Without ML — Just Rules, Scores, and Honesty About Ambiguity

Building a Hash Identifier Without ML — Just Rules, Scores, and Honesty About Ambiguity

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8 min read
Perceptual Image Diff Without NumPy — Building a Pillow-Only CLI

Perceptual Image Diff Without NumPy — Building a Pillow-Only CLI

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9 min read
A 60 MB FastAPI Service That Extracts Text From PDFs (and Why It Beats Tika for the 90% Case)

A 60 MB FastAPI Service That Extracts Text From PDFs (and Why It Beats Tika for the 90% Case)

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8 min read
grep's flat output is the wrong abstraction for exploratory searches

grep's flat output is the wrong abstraction for exploratory searches

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9 min read
I Built a FastAPI QR Code Service and the Library Choice Mattered More Than the Code

I Built a FastAPI QR Code Service and the Library Choice Mattered More Than the Code

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9 min read
Writing a Privacy Tool You Can Actually Trust: exif-stripper in 500 Lines of Python

Writing a Privacy Tool You Can Actually Trust: exif-stripper in 500 Lines of Python

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8 min read
Stop Using `diff` on CSV Files — Build a Semantic CSV Diff in 200 Lines of Python

Stop Using `diff` on CSV Files — Build a Semantic CSV Diff in 200 Lines of Python

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9 min read
The Right-Sized Image Service: A FastAPI Watermarker in ~110 MB

The Right-Sized Image Service: A FastAPI Watermarker in ~110 MB

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10 min read
Writing a Polite Crawler: sitemap-gen for the Sites SSGs Forgot

Writing a Polite Crawler: sitemap-gen for the Sites SSGs Forgot

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9 min read
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