example.md

• Compile the Rust code to a shared library:

rustc --crate-type cdylib lib.rs

the Rust code defines a simple function perform_calculation that multiplies an input integer by 2.

The Rust code is compiled into a shared library, and then the Python script loads and calls this Rust function using ctypes.

lib.rs

// lib.rs

#[no_mangle]
pub extern "C" fn perform_calculation(input: i32) -> i32 {
    input * 2
}

main.py

import ctypes

# Load the Rust shared library
rust_lib = ctypes.CDLL('./lib.so')

# Define the input type and return type for the Rust function
rust_lib.perform_calculation.argtypes = [ctypes.c_int]
rust_lib.perform_calculation.restype = ctypes.c_int

# Call the Rust function from Python
input_value = 5
result = rust_lib.perform_calculation(input_value)

# Display the result
print(f"Result of the computation: {result}")