limist/py-moneyed — pull request #7 by therms (2012-12-28 02:54:49+00:00)
Title: Unless I'm missing something you shouldn't have a mutable default argument for Currency

In [1]: from currency import Currency

In [2]: c1 = Currency()

In [3]: c1.countries.append('USA')

In [4]: c2 = Currency()

In [5]: c2.countries.append('Canada')

In [6]: c1.countries
Out[6]: ['USA', 'Canada']