PEP 327 (Decimal data type) updated

[Batista, Facundo]

There's a new version of the PEP at

    http://www.python.org/peps/pep-0327.html

This one includes a lot of fixes, the results of the last discussion in
python-dev, and a new section: Documentation, which includes all the methods
and attributes available (with examples!).

Enjoy it!  Any feedback is welcomed.

.	Facundo