pythonScope errorHard

Independent objects sharing data

Time: 0:00

What it should do

Each Basket should have its own items, so after adding one thing to a fresh basket, two_baskets('x', 'y') returns 1.

What goes wrong

two_baskets('x', 'y') returns 2 — the second basket already contains the first basket's item.

Hints

This is a scope and closure bugs bug

Every callback reports the last value, a counter never increments, UnboundLocalError on a variable you can see.