gmpy2 is an optimized, C-coded Python extension module that supports fast multiple-precision arithmetic. gmpy2 is based on the original gmpy module. gmpy2 adds support for correctly rounded multiple-precision real arithmetic (using the MPFR library) and complex arithmetic (using the MPC library).

Version 2.3 (development)

• Preliminary support for free-threaded builds.
• Fix behavior and memory leaks for contexts.
• Fix memory leaks for mpfr caching.
• Fix rounding error in float(mpz).
• Add missing methods to mpz and mpq.
• Fix round(mpz, ndigits) if ndigits is negative.
• Improved support for mixed mpfr and mpc arithmetic.

gmpy2 2.2.2

• Fix memory leak for mpfr/mpc cache, see issue 511.
• Fix memory leak in GMPy_CTXT_Exit(), see issue 515.
• Restore 'm' in library list, see issue 538.
• Adjust to_bytes() behavior to match CPython.
• Provide wheels for CPython v3.14.
• Provide wheels for Linux and Windows ARM64.

gmpy2 2.2.1

• Bug fix: use C int instead of C char for some internal code.
• Bug fix: add xmpz.bit_count method.

gmpy2 2.2.0

gmpy2 2.2.0 is now available with support for Python 3.7 to 3.13.

• Support for thread-safe contexts and context methods has been improved.
• Interoperability with Cython extensions has been updated.
• Extensive improvements have been made to the build and testing processes.
• Many bug fixes.
• Extensive documentation cleanup.

Availability

gmpy2 is available at https://pypi.python.org/pypi/gmpy2/

Documentation is available at https://gmpy2.readthedocs.io/en/latest/