Online Library system | Made with python

Online Library system


Code --

-------------------------------

import time



def getdate():

    return time.asctime()



class Library:

    # list_of_books = ["S.Sc. All in one", "Maths R.D. Sharma", "D.K.", "Maths N.C.E.R.T."]


    def __init__(self, book_list, library_name):

        self.list_of_books = book_list

        self.library_name = library_name


    def display_book(self):

        print("Displaying...")

        time.sleep(1)

        return f"{self.list_of_books}\n"


    def lend_book(self):

        name = input("Enter your name: ")

        name_of_book = input("Enter the name of book which you want to borrow: ")

        if name_of_book not in self.list_of_books:

            print("Book not available !! or incorrect book name entered !!")

        else:

            print("Borrowing..")

            with open("online_library_log_file.txt", "a") as k:

                k.write("\t\t[Lending book]" + "\n" + name + ", " + name_of_book + ": " + str([str(getdate())]) + "\n" + "------------------------------" + "\n")

            self.list_of_books.remove(name_of_book)

            time.sleep(1)

            return "Successfully borrowed.."

        return ""


    def add_book(self):

        name = input("Enter your name: ")

        name_of_book = input("Enter the name of book which you want to add: ")

        print("Adding...")

        with open("online_library_log_file.txt", "a") as m:

            m.write("\t\t[Book added]" + "\n" + name + ", " + name_of_book + ": " + str([str(getdate())]) + "\n" + "------------------------------" + "\n")

        time.sleep(1)

        self.list_of_books.append(name_of_book)

        return "Successfully added..\n"


    def return_book(self):

        name = input("Enter your name: ")

        name_of_book = input("Enter the name of book which you want to return: ")

        print("Returning...")

        with open("online_library_log_file.txt", "a") as h:

            h.write("\t\t[Book returned]" + "\n" + name + ", " + name_of_book + ": " + str([str(getdate())]) + "\n" + "------------------------------" + "\n")

        time.sleep(1)

        self.list_of_books.append(name_of_book)

        return "Successfully returned.\n"



if __name__ == '__main__':

    print("Welcome to online library system. Create your own online library within seconds.")

    time.sleep(.5)

    list_of_books = ["S.Sc. All in one", "Maths R.D. Sharma", "D.K.", "Maths N.C.E.R.T."]

    a = input("Enter your library name: ")

    school = Library(list_of_books, a)

    while True:

        clear = ''

        print("1: List of all books\n2: Lending book\n3: Adding book\n4: Returning book\n5: For checking log file")

        inp1 = input("6: For Exiting\n7: For clear log file\n")

        if inp1 == '1':

            print(school.display_book())

        elif inp1 == '2':

            print(school.lend_book())

        elif inp1 == '3':

            print(school.add_book())

        elif inp1 == '4':

            print(school.return_book())

        elif inp1 == '6':

            bye = "Thanks for using our online library..."

            i = 1

            a = 0

            for j in range(2):

                for item in bye:

                    print(bye[a:i], end="")

                    i += 1

                    a += 1

                    time.sleep(.2)

                print()

                i = 1

                a = 0

            print()

            break

        elif inp1 == '5':

            password = input("Enter password: ")

            if password == 'baby likes BASS':

                with open("online_library_log_file.txt", "r") as f:

                    if f.read() == '':

                        print("Log file empty..\n")

                    else:

                        with open("online_library_log_file.txt", "r") as g:

                            print(g.read())

            else:

                print("Incorrect password entered !!!")

        elif inp1 == '7':

            password = input("Enter password: ")

            if password == 'baby likes BASS':

                with open("online_library_log_file.txt", "w") as u:

                    u.write(clear)

                print("Log file cleared..\n")

            else:

                print("Incorrect password entered !!!")


        else:

            print("Invalid input !!! Try again !!\n")


        time.sleep(.5)

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