wtf is py_ecc?

py_ecc is a Python library that lets you perform elliptic curve cryptography. It supports three specific curves: secp256k1, alt_bn128, and bls12_381. If you are building a Python application that needs to do advanced cryptographic math, this library provides the tools to handle those operations. The project is maintained under the Ethereum organization, which makes sense because these particular curves are heavily used in blockchain and cryptocurrency projects. For example, secp256k1 is the curve behind Bitcoin and Ethereum key pairs, and BLS12-381 is a newer curve used in advanced cryptographic schemes like digital signature aggregation, which is important for Ethereum's proof-of-stake system. The library implements both the basic point operations on these curves and the more advanced "pairing" operations that certain curves support. Someone who would reach for this library is likely a developer or researcher working on blockchain protocols, zero-knowledge proofs, or other systems that need specific elliptic curve math implemented natively in Python. Rather than writing the complex math from scratch, they can install this library and call the functions directly. It is essentially a building block for cryptography-heavy applications. One important thing the README is upfront about is that the library contains experimental code and has not been audited. That means anyone using it for production systems handling real money or sensitive data should be cautious, since unaudited cryptography can contain subtle flaws. It is a valuable tool for prototyping and research, but the warning suggests it may not be ready for high-stakes deployments without further review.