Welcome to gmpy2 project! ------------------------- gmpy2 provides fast multiple-precision arithmetic to Python. gmpy2 is an optimized C extension that supports the GMP, MPFR, and MPC libraries. gmpy2 is based on the original gmpy module. gmpy2 adds support for correctly rounded multiple-precison real (using the MPFR library) and complex (using the MPC library) arthmetic. The gmpy2 2.0.x series is a stable version that is only receiving bug fixes. The main development branch (2.1.x) was extensively refactored. The most significant changes are support for thread-safe contexts and context methods. gmpy2 2.0.x is available at https://pypi.python.org/pypi/gmpy2. To install a development version of gmpy2 2.1.x, just clone or copy the repository and follow the instructions in the INSTALL file. Detailed instructions for building on Windows using the MSYS2/MINGW-W64 tool chain can be found in msys2_build.txt