Initial data commit

Task/Currency/Python/currency.py

@@ -0,0 +1,26 @@
+from decimal import Decimal as D
+from collections import namedtuple
+
+Item = namedtuple('Item', 'price, quant')
+
+items = dict( hamburger=Item(D('5.50'), D('4000000000000000')),
+              milkshake=Item(D('2.86'), D('2')) )
+tax_rate = D('0.0765')
+
+fmt = "%-10s %8s %18s %22s"
+print(fmt % tuple('Item Price Quantity Extension'.upper().split()))
+
+total_before_tax = 0
+for item, (price, quant) in sorted(items.items()):
+    ext = price * quant
+    print(fmt % (item, price, quant, ext))
+    total_before_tax += ext
+print(fmt % ('', '', '', '--------------------'))
+print(fmt % ('', '', 'subtotal', total_before_tax))
+
+tax = (tax_rate * total_before_tax).quantize(D('0.00'))
+print(fmt % ('', '', 'Tax', tax))
+
+total = total_before_tax + tax
+print(fmt % ('', '', '', '--------------------'))
+print(fmt % ('', '', 'Total', total))