How do the main features of Rust differ from Python, and what are their differences in use?

Rust is a systems programming language with memory management without a garbage collector, focused on safety and high performance. Python is an interpreted language with dynamic typing, suitable for rapid development and prototyping.

Main differences:

• Memory management: Rust uses ownership and borrowing system to prevent leaks and data races without a garbage collector. Python relies on garbage collection and reference counting.
• Typing: Rust is statically typed, errors are caught at compile time. Python is dynamically typed, types are checked at runtime.
• Performance: Rust is close to C/C++ in speed, suitable for system programming. Python is slower but can leverage its rich ecosystem and extensions (e.g., Cython).
• Parallelism: Rust ensures thread safety at compile time, preventing data races. Python's GIL limits multithreading, often using multiprocessing for parallelism.
• Usage: Rust is used for high-performance applications, system software, embedded systems. Python is used for scripting, web development, data analysis, machine learning.

Example in Rust (safe memory handling):

fn main() {
    let s = String::from("Hello");
    let r = &s; // borrowing
    println!("{}", r);
}

In Python:

s = "Hello"
r = s
print(r)