Everyone, I'm pleased to announce a new alpha release of GMPY2. GMPY2 is a wrapper for GMP and MPFR multiple-precision arithmetic libraries.
GMPY2 alpha2 introduces context manager support for MPFR arithmetic. It's now possible to trigger an exception when comparing against "nan" (and other for other events that normally generate "nan" or "inf"). >>> import gmpy2 >>> gmpy2.context().trap_erange=True >>> gmpy2.mpfr("nan") == gmpy2.mpfr("nan") Traceback (most recent call last): File "<stdin>", line 1, in <module> gmpy2.RangeError: comparison with NaN If you have an interest in multiple-precision arithmetic or want more control over the handling of exceptional events in floating point arithmetic, please check out GMPY2! GMPY2 is available for download from: http://code.google.com/p/gmpy/ Experimental release -------------------- To simplify the codebase, allow for changes in the API, and support simultaneous installation, the development version has been renamed to GMPY2. The following is list of changes in GMPY2: In 2.0.0a0 ---------- * support for a mutable integer type "xmpz" * removal of random number functions * "xmpz" supports slices for setting/clearing bits * some methods have been renamed (scan1 -> bit_scan1) * support for Python prior to 2.6 has been removed * support for all division modes has been added * ceiling - round to +Infinity * floor - round to -Infinity * truncate - round to zero * 2exp - division by a power of 2 * support is_even() and is_odd() In 2.0.0a1 ---------- * support for the MPFR floating point library In 2.0.0a2 ---------- * context manager support from controlling MPFR arithmetic * can raise Python exceptions when exceptional events occur with MPFR arithmetic; for example, comparing against "nan" can trigger an exception * more complete coverage for MPFR * many function names were changed to be more consistent Please report any issues! casevh -- http://mail.python.org/mailman/listinfo/python-list