updated contents from Atlas repo

sequences/named_slices.py

@@ -0,0 +1,21 @@
+invoice = """
+0.....6.................................40........52...55........
+1909  Pimoroni PiBrella                     $17.50    3    $52.50
+1489  6mm Tactile Switch x20                 $4.95    2     $9.90
+1510  Panavise Jr. - PV-201                 $28.00    1    $28.00
+1601  PiTFT Mini Kit 320x240                $34.95    1    $34.95
+"""
+
+structure = dict(
+    SKU = slice(0, 6),
+    DESCRIPTION = slice(6, 40),
+    UNIT_PRICE = slice(40, 52),
+    QUANTITY =  slice(52, 55),
+    ITEM_TOTAL = slice(55, None),
+)
+
+for line in invoice.split('\n')[2:]:
+    line_item = {}
+    for field, chunk in structure.items():
+        line_item[field] = line[chunk].strip()
+    print(line_item)