ANN: GMPY2 alpha2 is available for testing

[casevh]

Everyone,

I'm pleased to announce a new alpha release of GMPY2.
GMPY2 is a wrapper for GMP and MPFR multiple-precision
arithmetic libraries.

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