Problems adding an invoice using python bindings

[Tom Lofts]

 > I'm looking at adding invoices to gnucash (2.4.11) using the python
 > bindings, but am running into some problems relating to the currency.
 > Based on the examples available, the following script fails on my
 > existing gnucash (mysql) database

After further investigation into this issue, I believe this relates to a 
minor bug within the python bindings and have submitted this as bug 
700197: https://bugzilla.gnome.org/show_bug.cgi?id=700197 with the 
relevent patch to resolve the issue.

Kind regards,

Tom