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########## SPLIT ##########

msg = "Pay attention to each word that I say..."

words = msg.split() #returns list

print(words)

msg = "this,is,important,data" #How to parse CSV

print(msg.split(","))

########## SPLIT STRING BY LINE ##########

#This may have came from a file, for example.

msg = """\

Hey there.

My name is Caleb!

What's your name?

You're name is NERD? Weird...

Bye for now!"""

print(msg) #to see how it is stored...

print(msg.split('\n'))

########## INPUT USING SPLIT ##########

print("List your favorite foods separated by ', '")

print("Example input: ")

print("Kale, bok choy, brussel sprouts")

foods = input().split(', ')

for food in foods:

print("You said " + food)

#an obvious downfall is that this is very touchy.

#instead, we could ask one food per line

########## LOOPING TO GET USER INPUT ##########

fav_foods = []

while True:

print("Enter a food. q to quit: ", end="")

fav = input()

if str.lower(fav) == 'q':

break

fav_foods.append(fav)

print("all foods:", fav_foods)

########## LIST AS STACK ##########

#Consider a stack of plates.

#The last one you add is the first to be removed.

#The data structure depends on adding to the end of a list:

stack = []

stack.append("added")

#and removing from the end of the list

stack.pop()

fav_foods = []

while True:

print("Enter a food. q to quit, r to remove: ", end="")

fav = input()

if str.lower(fav) == 'q':

break

if str.lower(fav) == 'r':

popped = fav_foods.pop()

print("removed " + popped)

print("all foods:", fav_foods)

continue

fav_foods.append(fav)

print("all foods:", fav_foods)

print("final foods:", fav_foods)

########## QUEUE VARIATION ##########

#The difference with a queue is that the first added is the first removed

#consider a line to a roller coaster

#first in line rides ride first.

#The data structure depends on adding to the end of a list:

stack = []

stack.append("added")

#and removing from the FRONT of the list

stack.pop(0) #remove index 0

fav_foods = []

while True:

print("(QUEUE) Enter a food. q to quit, eat to remove: ", end="")

fav = input()

if str.lower(fav) == 'q':

break

if str.lower(fav) == 'eat':

popped = fav_foods.pop(0)

print("removed " + popped)

print("all foods:", fav_foods)

continue

fav_foods.append(fav)

print("all foods:", fav_foods)

print("final foods:", fav_foods)