'''
1. Create a class called Library
2. that manages a collection of books.
3. Include methods to add a book,
books = {
title : {
author:
genre:
year:
total:
}
}
4. remove a book,
5. and display all books in the library.
'''
class Library:
def __init__(self, books):
self.books = books
def add(self, title, values):
# book already exists
if title in self.books:
# total++
self.books[title]["total"] += 1
# first added
else:
# total = 1
# title : values -> in books
self.books[title] = values
def remove(self, title, amount):
# if book is valid = we have the book in self.books
if title in self.books:
# if amount is valid: total >= amount
if self.books[title]["total"] >= amount:
self.books[title]["total"] -= amount
else:
return print("The amount is not valid")
else:
return print("The book is not valid or not in books collection")
def info(self):
for title in self.books:
print(f"Title: {title}\n"
f"Author: {self.books[title]['author']}\n"
f"Genre: {self.books[title]['genre']}\n"
f"Year: {self.books[title]['year']}\n"
f"Total: {self.books[title]['total']}\n")
books = {
"The days gone by": {
"author": "Utkur Hoshimov",
"genre": "Drama",
"year": 1998,
"total": 3
},
"A is for Alibi": {
"author": "Agatha Christi",
"genre": "Detective",
"year": 2001,
"total": 4
}
}
library1 = Library(books)
title = "B is for Burglar"
values = {
"author": "Utkur Hoshimov",
"genre": "Drama",
"year": 1998,
"total": 3
}
library1.info()
print("-----------")
library1.add(title, values)
library1.info()
print("-----------")
library1.remove("A is for Alibi", 1)
library1.remove(title, 5)
library1.info()
print("-----------")
