HackerNoon

How Shallow and Deep Copies Work in Python

I copied a Python dictionary, but the original still changed. Here's how shallow copies, shared references, and deep copies ...

Even after trimming SKILL.md, it returns by 23% in 2 weeks—I placed a 12,000-byte gatekeeper on files Claude Code reads every time, and automatically slimmed dow…

The skill definition (`SKILL.md`) for Claude Code that I trimmed on September 13, 2026, had returned from 9,525 bytes to ...
HackerNoon

Why Python Dictionaries Crash When You Add or Delete Keys While Looping

Learn why Python raises "dictionary changed size during iteration," how it differs from list mutation, and three safe ways to ...
Analytics Insight

Three Ways to Speed Up Python Code With Numba: A Practical Guide

Overview: Numba is a just-in-time (JIT) compiler that turns Python functions into fast machine code. In one tested example, a ...