Piranha is a computer-algebra library for the symbolic manipulation of sparse multivariate polynomials and other closely-related symbolic objects (such as Poisson series). Piranha is written in modern C++, with emphasis on portability, correctness and performance. Piranha also includes a set of optional bindings for the Python programming language, called Pyranha, that allow to use the library in an interactive and script-oriented way. WWW: https://github.com/bluescarni/piranha