Constructing our own custom Python objects in Rust

In this final section, we will build a Python module in Rust that can be interacted with in the Python system as if it were a native Python object. To do this, we must follow these steps:

1. Define a Python class with all our attributes.
2. Define class static methods to process numbers.
3. Define a class constructor.

Defining a Python class with the required attributes

To start our journey, we define our class in the src/class_module/fib_processor.rs file, as follows:

1. To build our class, we need to import the required macros by running the following code:

   use pyo3::prelude::{pyclass, pymethods, staticmethod};
   use crate::fib_calcs::fib_number::fibonacci_number;
   use crate::fib_calcs::fib_numbers::fibonacci_numbers;

   Here, we are using the pyclass macro to define our Rust Python class. We then use pymethods and staticmethod to define methods attached to the class. We also use standard Fibonacci numbers to calculate...