Question

Please help with this exercise on Python program involving the use of dictionary.

### This exercise involves building a non-trivial dictionary.
### The subject is books.

### The key for each book is its title
### The value associated with that key is a dictionary

### ### In that dictionary there will be Three keys: They are all strings, they are:
### ### "Pages", "Author", "Publisher"

### ### ### "Pages" is associated with one value - an int

### ### ### "Author is associated with a dictionary as value
### ### ### ### That "Author" dictionary has two keys: "First", and "Last" each with a string value

### ### ### "Publisher" is associated with a dictionary as value
### ### ### ### That "Publisher" dict has one key "Location" with a string as value.

### An Example might look like:
### {"Harry Potter": {"Pages":200, "Author":{"First":"J.K", "Last":"Rowling"}, "Publisher":{"Location":"NYC"}},
### "Fear and Loathing in Las Vegas": { ...}}

### Code a function called "build_book_dict"
### ACCEPT five inputs, all lists of n-length
### ### A list of titles, pages, first<name>, last<name>, and <publisher>location.

### RETURN a dictionary as described above.
### Keys must be spelled just as they appear above - correctly and capitalized.

def build_book_dict(titles, pages, firsts, lasts, locations):
    """
    Return a nested dictionary storing information about Books
  
    Positional Arguments:
        titles -- A list of strings
        pages -- A list of ints
        firsts -- A list of strings
        lasts -- A list of strings
        locations -- A list of strings
  
    Example:
        titles = ["Harry Potter", "Fear and Loathing in Las Vegas"]
        pages = [200, 350]
        firsts = ["J.K.", "Hunter"]
        lasts = ["Rowling", "Thompson"]
        locations = ["NYC", "Aspen"]
      
        book_dict = build_book_dict(titles, pages, firsts, lasts, locations)
        print(book_dict) # -->
            {'Fear and Loathing in Las Vegas': {'Publisher': {'Location': 'Aspen'},
            'Author': {'Last': 'Thompson', 'First': 'Hunter'}, 'Pages': 350},
            'Harry Potter': {'Publisher': {'Location': 'NYC'},
            'Author': {'Last': 'Rowling', 'First': 'J.K.'}, 'Pages': 200}}
      
    """
  
    return dict()

Answer 1

### This exercise involves building a non-trivial dictionary.
### The subject is books.

### The key for each book is its title
### The value associated with that key is a dictionary

### ### In that dictionary there will be Three keys: They are all strings, they are:
### ### "Pages", "Author", "Publisher"

### ### ### "Pages" is associated with one value - an int

### ### ### "Author is associated with a dictionary as value
### ### ### ### That "Author" dictionary has two keys: "First", and "Last" each with a string value

### ### ### "Publisher" is associated with a dictionary as value
### ### ### ### That "Publisher" dict has one key "Location" with a string as value.

### An Example might look like:
### {"Harry Potter": {"Pages":200, "Author":{"First":"J.K", "Last":"Rowling"}, "Publisher":{"Location":"NYC"}},
### "Fear and Loathing in Las Vegas": { ...}}

### Code a function called "build_book_dict"
### ACCEPT five inputs, all lists of n-length
### ### A list of titles, pages, first<name>, last<name>, and <publisher>location.

### RETURN a dictionary as described above.
### Keys must be spelled just as they appear above - correctly and capitalized.

def build_book_dict(titles, pages, firsts, lasts, locations):
        """
        Return a nested dictionary storing information about Books

        Positional Arguments:
        titles -- A list of strings
        pages -- A list of ints
        firsts -- A list of strings
        lasts -- A list of strings
        locations -- A list of strings

        Example:
        titles = ["Harry Potter", "Fear and Loathing in Las Vegas"]
        pages = [200, 350]
        firsts = ["J.K.", "Hunter"]
        lasts = ["Rowling", "Thompson"]
        locations = ["NYC", "Aspen"]

        book_dict = build_book_dict(titles, pages, firsts, lasts, locations)
        print(book_dict) # -->
                {'Fear and Loathing in Las Vegas': {'Publisher': {'Location': 'Aspen'},
                'Author': {'Last': 'Thompson', 'First': 'Hunter'}, 'Pages': 350},
                'Harry Potter': {'Publisher': {'Location': 'NYC'},
                'Author': {'Last': 'Rowling', 'First': 'J.K.'}, 'Pages': 200}}

        """

        result = {}

        for i in range(len(titles)):
                movieData = {}
                title = titles[i]
                movieData['Publisher'] = {'Location': locations[i]}
                movieData['Author'] = {'Last': lasts[i], 'First': firsts[i]}
                movieData['Pages'] = pages[i]
                result[title] = movieData

        return result

titles = ["Harry Potter", "Fear and Loathing in Las Vegas"]
pages = [200, 350]
firsts = ["J.K.", "Hunter"]
lasts = ["Rowling", "Thompson"]
locations = ["NYC", "Aspen"]

book_dict = build_book_dict(titles, pages, firsts, lasts, locations)
print(book_dict)

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