orders = open('/data/retail_db/orders/part-00000'). \
read(). \
splitlines()

# for order in orders[:10]: print(order)

orderDatesList = []

for order in orders:
    orderDatesList.append(order.split(',')[1])

orderDates = set(orderDatesList)

# for order in list(orderDates)[:10]: print(order)

orderRecord = orders[0]
orderRecordElements = orders[0].split(',')

orderTuple = (int(orderRecordElements[0]), orderRecordElements[1], int(orderRecordElements[2]), orderRecordElements[3])
# print(orderTuple[1])

orderDict = {}

for order in orders:
    orderDict[int(order.split(',')[0])] = order.split(',')[1]

print(orderDict[1])
len(orderDict.keys())