Rust Platform

🎯 In Python, you'd use a class or dataclass to group related data:

from dataclasses import dataclass

@dataclass
class City:
    name: str
    country: str
    population: int

    def summary(self) -> str:
        return f"{self.name} ({self.country}) — population: {self.population}"

Rust's equivalent is a struct with an impl block for methods:

struct City {
    name: String,
    country: String,
    population: u64,
}

impl City {
    fn summary(&self) -> String {
        format!(
            "{} ({}) — population: {}",
            self.name, self.country, self.population
        )
    }
}

Key differences from Python:

• Data and methods are separate. The struct defines fields. The impl block defines methods. In Python, both live inside the class.
• &self is explicit. Python's self is always a reference. Rust makes you write &self (borrow) vs self (consume) — you choose whether the method keeps …