Question

Python: The attached file (books.csv) contains a list of some of the world's most famous books, including author, title and approximate year written/published. Your task is to write a program to do the following:

1. Create a class "Book()" that can store the values passed as arguments at creation time as attributes called "title", "year", and "author". NOTE: Be sure to convert the year data to an integer, and to deal with any data that cannot be converted by setting the year for those objects to 0.
2. Create two methods on the class, author_first() and title_first() that return, strings in the following forms: "author, title (year)" and "title, by author"
3. Create a main() function that can receive a command-line argument for the name of the data file using sys.argv.
4. The main function should read and parse the data file into a list of dictionaries using the csv module (specifically csv.DictReader).
5. Finally, the main function should create an instance of the Book class for each line of data, using dictionary expansion (that is, using the ** syntax for keyword arguments).

Answer 1

Thanks for the question. Below is the code you will be needing, I could not complete everything because I need the csv file to look into the contents are structure. Rest everything is done.

If you are satisfied with the solution, please leave a +ve feedback : ) Let me know for any help with any other questions.

Thank You!
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import sys
import csv

class Book():

    def __init__(self, title, year, author):
        self.title = title
        self.author = author
        try:
            self.year = int(year)  # convert the year data to an integer,
        except:
            self.year = 0  # cannot be converted by setting the year for those objects to 0.

    def author_first(self):
        return f'{self.author}, {self.title}, ({self.year})'

    def title_first(self):
        return f'{self.title}, by {self.author}'


def main():
    filename = sys.argv[1]
    #The main function should read and parse the data file into a list of dictionaries
    with open(filename,'r') as csv_file:
        csv_reader = csv.DictReader(csv_file)
    #main function should create an instance of the Book class for 
    # each line of data, using dictionary
    

if __name__ == '__main__':
    main()

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