dictionary_name = {key_1: value_1, key_2: value_2, key_3: value_3}

dictionary_name = {key_1: value_1,
                   key_2: value_2,
                   key_3: value_3,
                   }

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

print("\nWord: %s" % 'list')
print("Meaning: %s" % python_words['list'])
      
print("\nWord: %s" % 'dictionary')
print("Meaning: %s" % python_words['dictionary'])

print("\nWord: %s" % 'function')
print("Meaning: %s" % python_words['function'])

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Print out the items in the dictionary.
for word, meaning in python_words.items():
    print("\nWord: %s" % word)
    print("Meaning: %s" % meaning)

for key_name, value_name in dictionary_name.items():
    print(key_name) # The key is stored in whatever you called the first variable.
    print(value_name) # The value associated with that key is stored in your second variable.

# Create an empty dictionary.
python_words = {}

# Fill the dictionary, pair by pair.
python_words['list'] ='A collection of values that are not connected, but have an order.'
python_words['dictionary'] = 'A collection of key-value pairs.'
python_words['function'] = 'A named set of instructions that defines a set of actions in Python.'

# Print out the items in the dictionary.
for word, meaning in python_words.items():
    print("\nWord: %s" % word)
    print("Meaning: %s" % meaning)

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

print('dictionary: ' + python_words['dictionary'])
    
# Clarify one of the meanings.
python_words['dictionary'] = 'A collection of key-value pairs. Each key can be used to access its corresponding value.'

print('\ndictionary: ' + python_words['dictionary'])

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Show the current set of words and meanings.
print("\n\nThese are the Python words I know:")
for word, meaning in python_words.items():
    print("\nWord: %s" % word)
    print("Meaning: %s" % meaning)
    
# Remove the word 'list' and its meaning.
del python_words['list']

# Show the current set of words and meanings.
print("\n\nThese are the Python words I know:")
for word, meaning in python_words.items():
    print("\nWord: %s" % word)
    print("Meaning: %s" % meaning)

def show_words_meanings(python_words):
    # This function takes in a dictionary of python words and meanings,
    #  and prints out each word with its meaning.
    print("\n\nThese are the Python words I know:")
    for word, meaning in python_words.items():
        print("\nWord: %s" % word)
        print("Meaning: %s" % meaning)
        

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

show_words_meanings(python_words)
    
# Remove the word 'list' and its meaning.
del python_words['list']

show_words_meanings(python_words)

def show_words_meanings(python_words):
    # This function takes in a dictionary of python words and meanings,
    #  and prints out each word with its meaning.
    print("\n\nThese are the Python words I know:")
    for word, meaning in python_words.items():
        print("\n%s: %s" % (word, meaning))
        

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

show_words_meanings(python_words)
    
# Remove the word 'list' and its meaning.
del python_words['list']

show_words_meanings(python_words)

# We have a spelling mistake!
python_words = {'lisst': 'A collection of values that are not connected, but have an order.'}

# Create a new, correct key, and connect it to the old value.
#  Then delete the old key.
python_words['list'] = python_words['lisst']
del python_words['lisst']

# Print the dictionary, to show that the key has changed.
print(python_words)

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

for key, value in my_dict.items():
    print('\nKey: %s' % key)
    print('Value: %s' % value)

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

print(my_dict.items())

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

for word, meaning in python_words.items():
    print("\nWord: %s" % word)
    print("Meaning: %s" % meaning)

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

for key in my_dict.keys():
    print('Key: %s' % key)

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

for key in my_dict:
    print('Key: %s' % key)

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

for key in my_dict:
    print('Key: %s' % key)
    if key == 'key_2':
        print("  The value for key_2 is %s." % my_dict[key])

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Show the words that are currently in the dictionary.
print("The following Python words have been defined:")
for word in python_words:
    print("- %s" % word)

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Show the words that are currently in the dictionary.
print("The following Python words have been defined:")
for word in python_words:
    print("- %s" % word)
    
# Allow the user to choose a word, and then display the meaning for that word.
requested_word = raw_input("\nWhat word would you like to learn about? ")
print("\n%s: %s" % (requested_word, python_words[requested_word]))

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Show the words that are currently in the dictionary.
print("The following Python words have been defined:")
for word in python_words:
    print("- %s" % word)

requested_word = ''
while requested_word != 'quit':
    # Allow the user to choose a word, and then display the meaning for that word.
    requested_word = raw_input("\nWhat word would you like to learn about? (or 'quit') ")
    if requested_word in python_words.keys():
        print("\n  %s: %s" % (requested_word, python_words[requested_word]))
    else:
        # Handle misspellings, and words not yet stored.
        print("\n  Sorry, I don't know that word.")

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Show the words that are currently in the dictionary.
print("The following Python words have been defined:")
for word in python_words:
    print("- %s" % word)

requested_word = ''
while requested_word != 'quit':
    # Allow the user to choose a word, and then display the meaning for that word.
    requested_word = raw_input("\nWhat word would you like to learn about? (or 'quit') ")
    if requested_word in python_words.keys():
        # This is a word we know, so show the meaning.
        print("\n  %s: %s" % (requested_word, python_words[requested_word]))
    elif requested_word != 'quit':
        # This is not in python_words, and it's not 'quit'.
        print("\n  Sorry, I don't know that word.")
    else:
        # The word is quit.
        print "\n  Bye!"

my_dict = {'key_1': 'value_1',
    'key_2': 'value_2',
    'key_3': 'value_3',
    }

for value in my_dict.values():
    print('Value: %s' % value)

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

for meaning in python_words.values():
    print("Meaning: %s" % meaning)

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Print each meaning, one at a time, and ask the user
#  what word they think it is.
for meaning in python_words.values():
    print("\nMeaning: %s" % meaning)
    
    guessed_word = raw_input("What word do you think this is? ")
    
    # The guess is correct if the guessed word's meaning matches the current meaning.
    if python_words[guessed_word] == meaning:
        print("You got it!")
    else:
        print("Sorry, that's just not the right word.")

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

# Print each meaning, one at a time, and ask the user
#  what word they think it is.
for meaning in python_words.values():
    print("\nMeaning: %s" % meaning)
    
    # Assume the guess is not correct; keep guessing until correct.
    correct = False
    while not correct:
        guessed_word = input("\nWhat word do you think this is? ")
    
        # The guess is correct if the guessed word's meaning matches the current meaning.
        if python_words[guessed_word] == meaning:
            print("You got it!")
            correct = True
        else:
            print("Sorry, that's just not the right word.")

python_words = {'list': 'A collection of values that are not connected, but have an order.',
                'dictionary': 'A collection of key-value pairs.',
                'function': 'A named set of instructions that defines a set of actions in Python.',
                }

def show_words(python_words):
    # A simple function to show the words in the dictionary.
    display_message = ""
    for word in python_words.keys():
        display_message += word + '  '
    print display_message

# Print each meaning, one at a time, and ask the user
#  what word they think it is.
for meaning in python_words.values():
    print("\n%s" % meaning)

    # Assume the guess is not correct; keep guessing until correct.
    correct = False
    while not correct:
        
        print("\nWhat word do you think this is?")
        show_words(python_words)
        guessed_word = raw_input("- ")    
        
        # The guess is correct if the guessed word's meaning matches the current meaning.
        if python_words[guessed_word] == meaning:
            print("You got it!")
            correct = True
        else:
            print("Sorry, that's just not the right word.")

# This program stores people's favorite numbers, and displays them.
favorite_numbers = {'eric': [3, 11, 19, 23, 42],
                    'ever': [2, 4, 5],
                    'willie': [5, 35, 120],
                    }

# Display each person's favorite numbers.
print("Eric's favorite numbers are:")
print(favorite_numbers['eric'])

print("\nEver's favorite numbers are:")
print(favorite_numbers['ever'])

print("\nWillie's favorite numbers are:")
print(favorite_numbers['willie'])

# This program stores people's favorite numbers, and displays them.
favorite_numbers = {'eric': [3, 11, 19, 23, 42],
                    'ever': [2, 4, 5],
                    'willie': [5, 35, 120],
                    }

# Display each person's favorite numbers.
for name in favorite_numbers:
    print("\n%s's favorite numbers are:" % name.title())
    print(favorite_numbers[name])      

# This program stores people's favorite numbers, and displays them.
favorite_numbers = {'eric': [3, 11, 19, 23, 42],
                    'ever': [2, 4, 5],
                    'willie': [5, 35, 120],
                    }

# Display each person's favorite numbers.
for name in favorite_numbers:
    print("\n%s's favorite numbers are:" % name.title())
    # Each value is itself a list, so we need another for loop
    #  to work with the list.
    for favorite_number in favorite_numbers[name]:
        print(favorite_number)        

# This program stores people's favorite numbers, and displays them.
favorite_numbers = {'eric': [3, 11, 19, 23, 42],
                    'ever': [2, 4, 5],
                    'willie': [5, 35, 120],
                    }

# Display each person's favorite numbers.
for name in favorite_numbers:
    print("\n%s's favorite numbers are:" % name.title())
    
    # Each value is itself a list, so let's put that list in a variable.
    current_favorite_numbers = favorite_numbers[name]
    for favorite_number in current_favorite_numbers:
        print(favorite_number)        

# This program stores information about pets. For each pet,
#   we store the kind of animal, the owner's name, and
#   the breed.
pets = {'willie': {'kind': 'dog', 'owner': 'eric', 'vaccinated': True},
        'walter': {'kind': 'cockroach', 'owner': 'eric', 'vaccinated': False},
        'peso': {'kind': 'dog', 'owner': 'chloe', 'vaccinated': True},
        }

# Let's show all the information for each pet.
print("Here is what I know about Willie:")
print("kind: " + pets['willie']['kind'])
print("owner: " + pets['willie']['owner'])
print("vaccinated: " + str(pets['willie']['vaccinated']))

print("\nHere is what I know about Walter:")
print("kind: " + pets['walter']['kind'])
print("owner: " + pets['walter']['owner'])
print("vaccinated: " + str(pets['walter']['vaccinated']))

print("\nHere is what I know about Peso:")
print("kind: " + pets['peso']['kind'])
print("owner: " + pets['peso']['owner'])
print("vaccinated: " + str(pets['peso']['vaccinated']))

# This program stores information about pets. For each pet,
#   we store the kind of animal, the owner's name, and
#   the breed.
pets = {'willie': {'kind': 'dog', 'owner': 'eric', 'vaccinated': True},
        'walter': {'kind': 'cockroach', 'owner': 'eric', 'vaccinated': False},
        'peso': {'kind': 'dog', 'owner': 'chloe', 'vaccinated': True},
        }

# Let's show all the information for each pet.
for pet_name, pet_information in pets.items():
    print("\nHere is what I know about %s:" % pet_name.title())
    print("kind: " + pet_information['kind'])
    print("owner: " + pet_information['owner'])
    print("vaccinated: " + str(pet_information['vaccinated']))

# This program stores information about pets. For each pet,
#   we store the kind of animal, the owner's name, and
#   the breed.
pets = {'willie': {'kind': 'dog', 'owner': 'eric', 'vaccinated': True},
        'walter': {'kind': 'cockroach', 'owner': 'eric', 'vaccinated': False},
        'peso': {'kind': 'dog', 'owner': 'chloe', 'vaccinated': True},
        }

# Let's show all the information for each pet.
for pet_name, pet_information in pets.items():
    print("\nHere is what I know about %s:" % pet_name.title())
    # Each animal's dictionary is in 'information'
    for key in pet_information:
        print(key + ": " + str(pet_information[key]))

# This program stores information about pets. For each pet,
#   we store the kind of animal, the owner's name, and
#   the breed.
pets = {'willie': {'kind': 'dog', 'owner': 'eric', 'vaccinated': True},
        'walter': {'kind': 'cockroach', 'owner': 'eric', 'vaccinated': False},
        'peso': {'kind': 'dog', 'owner': 'chloe', 'vaccinated': True},
        }

# Let's show all the information for each pet.
for pet_name, pet_information in pets.items():
    print("\nHere is what I know about %s:" % pet_name.title())
    # Each animal's dictionary is in pet_information
    for key in pet_information:
        if key == 'owner':
            # Capitalize the owner's name.
            print(key + ": " + pet_information[key].title())
        elif key == 'vaccinated':
            # Print 'yes' for True, and 'no' for False.
            vaccinated = pet_information['vaccinated']
            if vaccinated:
                print 'vaccinated: yes'
            else:
                print 'vaccinated: no'
        else:
            # No special formatting needed for this key.
            print(key + ": " + pet_information[key])