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adelyMicrosoft Word - CustomerAssignment.docx Python	Programming	 Customer	Assignment	 Due	May	2,	2021	 	 Genco	Pura	Olive	Oil	has	a	file	containing	its	customers,	a	file	containing	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:	 Customer.py	 runCustomer.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,	a	product	name,	quantity,	and	order	total	all	 separated	by	commas.		 	 Customer.py	 	 In	a	file	called	Customer.py,	create	a	class	called	 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.		The	 constructor	should	use	these	values	to	initialize	attributes	number	and	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	subscript.			 	 	 runCustomer.py	 	 A	file	called	runCustomer.py	is	provided	to	you	and	is	partially	completed.		Change	 this	filename	to	runCustomer.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  Customer import 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’s	 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	product	(a	 string),	the	quantity	(an	int),	and	the	order	total	(a	float).		Add	this	tuple	to	the	 customer’s	list	of	orders	by	sending	it	to	the	customer’s	addOrder()	method.		 	 Copyright Policy:  The copy in this document has been provided for educational purposes in accord with copyright  law.  This material is protected by copyrights owned by the instructor.  The user of this work is  responsible for adhering to copyright law.  This material cannot be re-published, uploaded,  posted, transmitted or distributed in any way.    		 Here	is	sample	output:

Microsoft Word - CustomerAssignment.docx PythonProgramming CustomerAssignment DueMay2,2021 GencoPuraOliveOilhasafilecontainingitscustomers,afilecontainingthe...

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