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This is the kind of project where the sandbox is useful - Facundo's
original decimal work was done there, as was the attempt at a complete
rewrite of the decimal module in C (which turned out to be a less than
optimal approach to the speed problem).
So I would suggest either a new directory in the sandbox, or re-using
Facundo's original directory (which includes the telco benchmark)
http://svn.python.org/view/sandbox/trunk/decimal
And I agree that it is far more sensible to target 2.7/3.1 at this stage
- the 3.0 slowdown, while real, actually isn't as bad as I expected, and
even if it's large enough to be unacceptable to heavy users of Decimal,
the only consequence is that they will have to hold off on migrating to
3.x for 12-18 months.
Should we add something specific to the 3.0 release notes pointing out
that there is approximately a 25% slowdown in the decimal module
relative to 2.x?