tryton-modules-account-invoice binary package in Ubuntu Precise i386

 Tryton is a high-level general purpose application platform written in Python
 and using PostgreSQL as database engine. It is the core base of a complete
 business solution.
 .
 This package contains the financial and accounting module with:
 .
  * Payment Term
  * Invoice/Credit Note
  * Supplier Invoice/Supplier Credit Note
 .
 With the possibilities:
 .
  * to follow the payment of the invoices.
  * to define invoice sequences on fiscal year or period.
  * to credit any invoice.

Source package