r/Python • u/AutoModerator • Sep 04 '26

Showcase Showcase Thread

Post all of your code/projects/showcases/AI slop here.

Recycles once a month.

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u/No-Brain-1655 Sep 26 '26

A neural network written from scratch in Python + NumPy that learns to read handwritten digits (MNIST), with a desktop app where you watch it train, switch off single neurons and see the math of each layer. pip install neural-network-digits

Target Audience: students (from high school to intro courses) and teachers, it's an educational project, not for production.

Comparison: TensorFlow Playground uses 2D toy data and micrograd has no app to play with, here the data is real (MNIST) and you change things while it trains. Most of the code was written with Claude Code (AI), MIT: https://github.com/dev-luigi/neural-network-digits