окончание while

#7-8
'''sandwich_orders = ['kolbasa','maslo','ikra']
finished_sandwiches =[]
while sandwich_orders:
	preparing_sandwich = sandwich_orders.pop()
	print('I made your ' + preparing_sandwich.title() + ' sandwich')
	finished_sandwiches.append(preparing_sandwich)
for finished_sandwiche in finished_sandwiches:
	print(finished_sandwiche.title() + ' sandwich is finished')'''

#7-9
'''sandwich_orders = ['kolbasa','sosiski','maslo','sosiski','ikra','sosiski']
finished_sandwiches =[]
print('sosiski bol`she net ')
while sandwich_orders:
	while 'sosiski' in sandwich_orders:
		sandwich_orders.remove('sosiski')
	preparing_sandwich = sandwich_orders.pop()
	print('I made your ' + preparing_sandwich.title() + ' sandwich')
	finished_sandwiches.append(preparing_sandwich)
for finished_sandwiche in finished_sandwiches:
	print(finished_sandwiche.title() + ' sandwich is finished')'''

#7-10  почти то же, что и рассматривали в главе, но добавил проверку правильности ввода
'''import time
responses ={}
polling_activate = True
while polling_activate:
	name = input("\nWhats your name :")
	response = input("\nWhat are you doing today? :")
	responses[name]=response
	repeat = input("\nWould you like to let another person respond? (yes/ no) ")
	input_check = True
	#проверка правильности ввода yes/no
	while input_check:
		if repeat !='yes' and repeat!='no':
			print('invalid value ')
			repeat = input("\nWould you like to let another person respond? (yes/ no) ")
		else:
			input_check = False
	#----------------------------------
	if repeat == 'yes':
		polling_activate = True
	if repeat == 'no':
		polling_activate = False
		print('poll Result')
		for name, response in responses.items():
			print(name, " ", response)
time.sleep(10)'''