5 Lists & Dictionaries

Cut List

suitcase = ["sunglasses", "hat", "passport", "laptop", "suit", "shoes"]

# The first and second items (index zero and one)
first = suitcase[0:2]

# Third and fourth items (index two and three)
middle = suitcase[2:4]

# The last two items (index four and five)
last =  suitcase[4:6]

Cut string

animals = "catdogfrog"

# The first three characters of animals
cat = animals[:3]

# The fourth through sixth characters
dog = animals[3:6]

# From the seventh character to the end
frog = animals[6:]

Add dictionary

inventory = {
  'gold' : 500,
  'pouch' : ['flint', 'twine', 'gemstone'], # Assigned a new list to 'pouch' key
  'backpack' : ['xylophone','dagger', 'bedroll','bread loaf']
}

# Adding a key 'burlap bag' and assigning a list to it
inventory['burlap bag'] = ['apple', 'small ruby', 'three-toed sloth']

# Sorting the list found under the key 'pouch'
inventory['pouch'].sort() 

# Your code here

inventory['pocket'] = ['seashell', 'strange berry', 'lint']
inventory['backpack'].remove('dagger')
inventory['backpack'].sort()
inventory['gold'] += 50

# key - animal_name : value - location 
zoo_animals = { 'Unicorn' : 'Cotton Candy House',
'Sloth' : 'Rainforest Exhibit',
'Bengal Tiger' : 'Jungle House',
'Atlantic Puffin' : 'Arctic Exhibit',
'Rockhopper Penguin' : 'Arctic Exhibit'}
# A dictionary (or list) declaration may break across multiple lines

# Removing the 'Unicorn' entry. (Unicorns are incredibly expensive.)
del zoo_animals['Unicorn']

# Your code here!
del zoo_animals['Sloth']
del zoo_animals['Bengal Tiger']

zoo_animals['Rockhopper Penguin'] = 'Arctical Exhibit'

print zoo_animals

for loop with if statement

shopping_list = ["banana", "orange", "apple"]

stock = {
  "banana": 6,
  "apple": 0,
  "orange": 32,
  "pear": 15
}
    
prices = {
  "banana": 4,
  "apple": 2,
  "orange": 1.5,
  "pear": 3
}

# Write your code below!
def compute_bill(food):
  total = 0
  for item in food:
    if stock[item] > 0:
      total += prices[item]
      stock[item] -= 1
  return total

print compute_bill(shopping_list)