chpt6practice.py

#Chapter 6 practice
# Linhe Sun

# practice 6-1
information = {
    'first_name': 'Hanlin',
    'last_name': 'Wang',
    'age': 25,
    'city': 'Chengdu'
    }

# practice 6-2
lucky_nums = {
    'Hanlin': 8,
    'Linhe': 7,
    'Yulin': 6
    }
print("Hanlin's lucky number is: " + str(lucky_nums['Hanlin']))
print("Linhe's lucky number is: " + str(lucky_nums['Linhe']))
print("Yulin's lucky number is: " + str(lucky_nums['Yulin']))

# practice 6-3
words = {
    'sum': 'sum all the numbers',
    'min': 'find the smallest number',
    'max': 'find the biggest number',
    'str': 'turn number to character string',
    'lower': 'lower case all the letters'
    }
print("sum: " + words['sum'] + "\nmin: " + words['min'] + "\nmax: " + 
    words['max'] + "\nstr: " + words['str'] + "\nlower: " + words['lower'])

# practice 6-4
print("\n")
words = {
    'sum': 'sum all the numbers',
    'min': 'find the smallest number',
    'max': 'find the biggest number',
    'str': 'turn number to character string',
    'lower': 'lower case all the letters',
    'set': 'gather the lists',
    'items': 'return keys and values in a dict',
    'keys': 'return keys in a dict',
    'values': 'return values in a dict',
    'title': 'capital the 1st letter in a word'
    }
for key, value in words.items():
    print(key + ": " + value)
    
# practice 6-5
rivers = {'nile': 'egypt', 'ganges': 'india', 'yangzi': 'china'}
for key, value in rivers.items():
    print("The " + key.title() + " runs through " + value.title() + ".")
for river in rivers.keys():
    print(river)
for nation in rivers.values():
    print(nation)

# practice 6-6
favorite_languages = {
    'jen': 'python',
    'sarah': 'c',
    'edward': 'ruby',
    'phil': 'python'
    }

survey_names = ['edward', 'sarah', 'hanlin', 'linman']
for name in survey_names:
    if name in favorite_languages.keys():
        print(name.title() + ", thanks for taking the survey!")
    else:
        print(name.title() + ", we are inviting you to take an easy survey.")

# practice 6-7
information1 = {
    'first_name': 'Hanlin',
    'last_name': 'Wang',
    'age': 25,
    'city': 'Chengdu'
    }
information2 = {
    'first_name': 'Linman',
    'last_name': 'Zhu',
    'age': 25,
    'city': 'Shenzhen'
    }
information3 = {
    'first_name': 'Qiaoxian',
    'last_name': 'Li',
    'age': 24,
    'city': 'Shenzhen'
    }
informations = [information1, information2, information3]
for inform in informations:
    print("\n")
    for key, value in inform.items():
        print(key + ": " + str(value))

# practice 6-8
mimi = {'name': 'mimi', 'type': 'dog', 'master': 'Shuo Wang'}
shining = {'name': 'shining', 'type': 'cat', 'master': 'Linhe Sun'}
liaoge = {'name': 'liaoge', 'type': 'parrot', 'master': 'Tenglong Song'}
pets = [mimi, shining, liaoge]
for pet in pets:
    print("\n")
    for key, value in pet.items():
        print(key + ": " + value)

# practice 6-9
favorite_places = {
    'Linhe': ['Nanjing', 'Chengdu', 'Tokyo'],
    'Yaoyao': ['Nanjing', 'Beijing', 'New York'],
    'Kuanye': ['Beijing', 'Nanjing', 'Qiqihar', 'Qingdao']
    }
for name, places in favorite_places.items():
    print(name + "'s favorite places are:")
    for place in places:
        print("    " + place)

# practice 6-10
lucky_nums = {
    'Hanlin': [8, 16, 99, 999],
    'Linhe': [7, 9, 108],
    'Yulin': [6, 666]
    }
for name, nums in lucky_nums.items():
    print(name + " likes these numbers:")
    for num in nums:
        print("    " + str(num))

# practice 6-11
cities = {
    'Beijing': {
        'coutry': 'China',
        'population': '20 million',
        'fact': 'It is the capital of China.'
        },
    'Tokyo': {
        'coutry': 'Japan',
        'population': '9.2 million',
        'fact': 'It is the capital of Japan.'
        },
    'New York': {
        'coutry': 'USA',
        'population': '8.2 million',
        'fact': 'It has 2 MLB baseball teams inside.'
        }
    }
for city, infos in cities.items():
    print("Here are some information of " + city + ":")
    for key, value in infos.items():
        print("    " + key + ": " + value)
        
# practice 6-12
# modify the 6-11
for city in sorted(cities.keys()):
    print("Here are some information of " + city + ":\n    " + "It's in " + 
        cities[city]['coutry'] + " with a population of " + 
        cities[city]['population'] + ". " + cities[city]['fact'])