for hod in salesRead(input_file):
product_id = hod['Product ID']
customer_id = hod['Customer ID']
item_cost = hod['Item Cost']
itemRevenue.put(product_id,float(item_cost))
if(currentCustomer != customer_id):
individual_cart = set()
elif (product_id in individual_cart):
continue
individual_cart.add(product_id)
item_set.add(product_id)
itemCount.put(product_id,1)
currentCustomer = customer_id
# Now Write the stream data to file
header = [['Product ID','Customer Count','Total Revenue']]
with open(out_file, 'w') as writeFile:
writer = csv.writer(writeFile)
writer.writerows(header)
for item in item_set:
line =[[]]
line=[[item,itemCount.get(item),round(itemRevenue.get(item),2)]]
writer.writerows(line)
writeFile.close()
