def print_analisys(catalog, sales):
number_of_sales = len(sales)
income = SaleTransaction.total_income(sales)
print("Summary")
print("-------")
print("Total number of sales: {}".format(str(number_of_sales)))
print("Total income: {}".format(str(income)))
print("Average price per transaction: {}".format(str(income/number_of_sales)))
print("Begin of data period: {}".format(SaleTransaction.begin_period(sales).isoformat()))
print("End of data period: {}".format(SaleTransaction.end_period(sales).isoformat()))
def main():
if len(sys.argv) < 3:
print("Usage: {} {{catalog csv file}} {{sales csv file}}".format(sys.argv[0]))
return 0
try:
catalog = CatalogItem.parse_catalog(sys.argv[1])
sales = SaleTransaction.parse_sales(sys.argv[2])
print_analisys(catalog, sales)
finally:
pass
