renamed imports from invoice to sales_order

artifice/plugins/csv_.py

@@ -1,11 +1,11 @@
 import os
 from csv import writer
-from artifice import invoice
+from artifice import sales_order
 # from artifice import clerk_mixins
 from decimal import *
 
 
-class Csv(invoice.RatesFileMixin, invoice.Invoice):
+class Csv(sales_order.RatesFileMixin, sales_order.SalesOrder):
 
     def __init__(self, start, end, config):
         super(Csv, self).__init__(start, end, config)

artifice/sales_order.py

@@ -14,7 +14,7 @@ from decimal import Decimal
 import csv
 
 
-class Invoice(object):
+class SalesOrder(object):
 
     # __metaclass__ = requirements