wtf is mod?

Modular arithmetic is a math concept where numbers "wrap around" after hitting a certain value, like a clock that resets after 12. This Python package makes it easy to do those kinds of calculations in your code without manually tracking remainders. Here's the idea: instead of writing (a + b) % modulus over and over, you create a special "mod number" once, and then every operation you do with it automatically handles the wrapping. For example, if you're working with modulus 7, you can add, subtract, multiply, or raise to a power, and the result stays within the 0-6 range. The package handles all the math correctly so you can focus on your logic. This comes in handy in real-world applications like cryptography (securing data), banking systems that use check digits to validate account numbers, ISBN validation in publishing, and even music theory where notes repeat at different octaves. The README includes a concrete example: a simple RSA encryption demonstration where you can encrypt and decrypt a secret message using modular arithmetic operations. The package is straightforward to use, you install it via pip, import the Mod class, and create a modular number by specifying a value and a modulus. Then you treat it like a normal integer. One useful quirk: you can even divide modular numbers (using //) to find multiplicative inverses, which is useful for cryptographic algorithms. If you mix a Mod with a regular Python float, the result becomes a regular float instead of a Mod, which keeps the behavior predictable.