I've just released an alpha version of PyCurrency. The code is embarrassingly horrible, the doctests pass and most importantly it works for me. The idea is to create a wrapper around Google's currency conversion features.
To get started install it using easy_install or pip:
easy_install pycurrencyUsage is pretty straight forward. Below is an example of how you would convert 1 US Dollar to Jamaican Dollars:
Once instantiated, a converter object can be loaded with new currencies and amounts and the result recalculated. For more information visit: http://readthedocs.org/docs/pycurrency
The source is managed using mercurial and housed at bitbucket.org: https://bitbucket.org/alteroo/pycurrency