IndexError: list index out of range

[BashBedlam]

In my system, this code works as expected. Can you post all of the code that is creating the error?

orders_file = open('orders.txt')
orders_raw = orders_file.read()
orders_file.close ()
orders = orders_raw.splitlines()
 
def get_customer_orders(orders,customer_id):
	orders_filtered = []
	for i in orders:
		if int(i.split(',')[2])==customer_id:
			orders_filtered.append(i)
	return orders_filtered

print (get_customer_orders (orders, 256))

Output:
["'2,2013-07-25 00:00:00.0,256,PENDING_PAYMENT',"]