Rust Platform

🎯 In Python, you make any object iterable by implementing __iter__ and __next__:

class Countdown: def __init__(self, start): self.current = start def __iter__(self): return self def __next__(self): if self.current <= 0: raise StopIteration val = self.current self.current -= 1 return val

Or more commonly, you use a generator:

def countdown(start): while start > 0: yield start start -= 1

Rust uses the same idea — a trait with a next() method — but the payoff …