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304,11-15-2021, GOL1492, Refined Olive 0i1, 1,11.99
119,12-20-2021, GOL1399,Virgin Olive Oil, 5,40.00
689,01-11-2022, GOL1258, Extra-Virgin Olive
0i1, 2,22.00
304,01-24-2022, GOL8901, 01ive Pumace Oil, 1,6.00
912,02-01-2022, GOL1492,Refined Olive Oil, 2,23.98
592,02-04-2022,GOL1258,Extra-Virgin Olive oil, 1,11.00
120,02-10-2022,GOL1776, Pure Olive 011,1,12.99
912,03-14-2022,GOL1399, Virgin Olive Oil,1,8.00
119,03-17-2022, GOL1492, Refined Olive 011, 1, 11.99
304,04-05-2022, GOL1258,Extra-Virgin Olive Oil, 1,11.00
120,04-15-2022, GOL1258, Extra-Virgin Olive Oil, 1,11.00
986,04-20-2022, GOL1399, Virgin Olive Oil, 4, 32.00
512,04-24-2022, GOL8901, 01ive Pumace Oil, 1,6.00
This is orders.txt
Here is customers.txt
Here is the assignment Genco Pura Olive Oil has a file that contains its customers, a file that contains the
customers’ orders, and has begun creating a program to read the files and print the
contents in a human-readable format.
Files to submit:
˂yourLastName˃Customer.py
run˂yourLastName˃Customer.py
Input files:
There are two input files. The first one is called customers.txt. Each line of this input
file contains a customer number and name separated by a comma. The second input
file is called orders.txt. This file contains lines each corresponding to an order. Each
line contains a customer number, the order date, a product code, a product name,
quantity, and order total all separated by commas.
˂yourLastName˃Customer.py
In a file called ˂yourLastName˃Customer.py, create a class called
˂yourLastName˃Customer. My file would be called conwayCustomer.py and my
class would be called ConwayCustomer.
Attributes
The class will have three attributes (also called instance variables): an int called
number, a string called name, and a list called orders. The list will contain a list of
tuples, each corresponding to an order for that customer.
__init__()
Define a constructor (init) method. In addition to self, the constructor will define
two more parameters, one for customer number, and one for customer name. Set
the list (called orders) to an empty list.
addOrder()
Define a method addOrder(). In addition to self, this method will define one more
parameter, a tuple called order. Add this tuple to the list attribute called orders.
__str__()
Define the __str__() method. An object’s str() method builds and returns a string
representation of an object’s state. This allows an object to be sent to the print()
function (as is occurring in the main method). Create a string that includes the
customer’s name and number. Then append to this string all the orders in the orders
list. Loop over the list and add the items in the tuple to the string. The items in a
tuple can be accessed the same way the items in a list can be accessed – using the
name of the tuple and the index as a subsсrіpt.
run˂yourLastName˃Customer.py
A file called runCustomer.py is provided to you and is partially completed. Change
this filename to run˂yourLastName˃Customer.py. My file would be called
runConwayCustomer.py. This file contains an import statement, a main method, a
function called readCustomers(), and the function header of a function you will
create called readOrders(). You will have to modify the import statement to from
˂yourLastName˃Customer import ˂yourLastName˃Customer. My
import statement would be from conwayCustomer import
ConwayCustomer
The main method calls a function called readCustomers() that opens an input file,
reads the contents, and returns a dictionary. It then calls a function called
readOrders() that takes that dictionary as a parameter; this function will read from
an input file called orders.txt and add the orders to the appropriate customer. The
main method then loops through the customer dictionary and prints each customer.
Function readCustomers()
The function readCustomers() is already written. This function opens the input file,
customers.txt, for reading. An empty dictionary is created. The dictionary will map a
customer’s number to a customer object. As each line of the input file is read in as a
string, the string is split using the comma delimiter. This returns a list. The first item
in the resulting list is the customer number and the second item is the customer
name. The customer object is created by calling the Customer class’ constructor
(init) method using these values. An entry is made into the dictionary using the
customer number as the key and the Customer object as the value (you’ll have to
modify this to reflect your class name). Finally, the dictionary is returned.
Function readOrders()
You are creating the readOrders() function. This function takes as its parameter the
dictionary filled with customer number/customer object key/value pairs. This
function should open the input file, orders.txt, for reading. It should then loop
through the file in a similar way as the readCustomers() function, as the values are
also delimited by commas.
Get the customer object from the dictionary. This can be done using the dictionary
get() method and sending the customer number. The get method can take a second
argument that is returned if the customer number is not a key in the dictionary.
If the customer exists in the dictionary, create a tuple consisting of the date (a
string), the product code (a string), a product name (a string), the quantity (an int),
and the order total (a float). Add this tuple to the customer’s list orders by sending it to customers addOrder() method.
Important Info
The order was placed through a short procedure (customer skipped some order details).
Please clarify some paper details before starting to work on the order.
Type of paper and subject
Number of sources and formatting style
Type of service (writing, rewriting, etc)
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