Don't Let Dicts Spoil Your Code
tl;dr: "The simplicity of organic code growth has a flip side: it becomes too hard to maintain. The proliferation of dicts as primary data structures is a clear signal of tech debt in your code. Fortunately, modern Python provides many viable alternatives to plain dicts."
featured in #329
Quadratic Algorithms Are Slow (And Hashmaps Are Fast)
tl;dr: Julia guides us through what a quadratic time function looks like, why it's slow, how to convert a quadratic algorithm into a linear one using a hashmap.
featured in #252
Dicts Are Now Ordered, Get Used To It
tl;dr: "Changed in version 3.7: Dictionary order is guaranteed to be insertion order. This behavior was an implementation detail of CPython from 3.6."
featured in #172