Variables & types

No let, no var

In Swift you wrote let walkerName = "Ana" or var walkPriceCents = 2400. Python drops the keyword entirely — you just write the name, =, and the value:

walker_name = "Ana"
walk_price_cents = 2400

There's no let vs var distinction either. Every plain assignment can be reassigned later — Python doesn't have Swift's constant-safety built into the syntax. (Style convention: snake_case names, not camelCase — you'll see walker_name, not walkerName.)