Python

book.py

def main():
    books = [
        {
            'title': 'The Giver',
            'author': 'Lois Lowry',
            'isBorrowed': False
        },
        {
            'title': 'The Hunger Games',
            'author': 'Suzanne Collins',
            'isBorrowed': False
        },
        {
            'title': 'The Hobbit',
            'author': 'J.R.R. Tolkien',
            'isBorrowed': False
        },
        {
            'title': 'The Chronicles of Narnia',
            'author': 'C.S. Lewis',
            'isBorrowed': False
        },
        {
            'title': 'The Lion, the Witch and the Wardrobe',
            'author': 'C.S. Lewis',
            'isBorrowed': False
        },
        {
            'title': 'The Da Vinci Code',
            'author': 'Dan Brown',
            'isBorrowed': False
        },
        {
            'title': 'The Alchemist',
            'author': 'Paulo Coelho',
            'isBorrowed': False
        },
    ]

    print("Welcome to the book rental system")
    print("--------------------------------")

    def display_books():
        print("\n")
        print("Available books are: ")
        print("----------------------")
        for book in books:
            if book['isBorrowed'] == False:
                print("Title: " + book['title'])
                print("Author: " + book['author'])
                print("----------------------")

    def borrow_book():
        print("\n")
        print("Enter the name of the book you want to borrow: ")
        book_name = input("Enter the name of the book: ")

        is_book_found = False

        for book in books:
            if book['title'] == book_name:
                is_book_found = True
                if book['isBorrowed'] == False:
                    book['isBorrowed'] = True
                    print("Book borrowed")
                    break
                else:
                    print("Book is already borrowed")
                    break

        if is_book_found == False:
            print("Book not found")

    def return_book():
        print("\n")
        print("Enter the name of the book you want to return: ")
        book_name = input("Enter the name of the book: ")

        is_book_found = False

        for book in books:
            if book['title'] == book_name:
                is_book_found = True
                if book['isBorrowed'] == True:
                    book['isBorrowed'] = False
                    print("Book returned")
                    break
                else:
                    print("Book is not borrowed")
                    break
        if is_book_found == False:
            print("Book not found")

    while True:
        print("\n")
        print("Enter 1: To Display available books")
        print("Enter 2: To Borrow a book")
        print("Enter 3: To Return a book")
        print("Enter 4: To exit")

        print("Select a choice from 1-4")

        choice = int(input("Enter your choice: "))

        if choice == 1:
            display_books()
        elif choice == 2:
            borrow_book()
        elif choice == 3:
            return_book()
        elif choice == 4:
            exit()


main()

student.py

# Student Information System (CRUD)

def main():
    students = [
        {
            "name": "John",
            "sr_code": "123",
            "age": 25,
            "major": "Computer Science",
            "email_id": "john@gmail.com",
            "address": "123 Main St",
        }
    ]

    def add_student():
        print("Adding a new student:\n")

        name = input("Enter the name of the student: ")
        sr_code = input("Enter the student's SR Code: ")
        age = int(input("Enter the student's age: "))
        major = input("Enter the student's major: ")
        email_id = input("Enter the student's email id: ")
        address = input("Enter the student's address: ")

        students.append({
            "name": name,
            "sr_code": sr_code,
            "age": age,
            "major": major,
            "email_id": email_id,
            "address": address,
        })

        print("\nStudent added successfully!")

    def update_student():
        print("Updating a student:\n")
        sr_code = input("Enter the SR of the student: ")

        is_student_found = False

        for student in students:
            if student['sr_code'] == sr_code:
                is_student_found = True
                student['name'] = input("Enter the new name of the student: ")
                student['age'] = int(input("Enter the new student's age: "))
                student['major'] = input("Enter the new student's major: ")
                student['email_id'] = input(
                    "Enter the new student's email id: ")
                student['address'] = input("Enter the new student's address: ")
                print("\nStudent updated successfully!")
                break

        if is_student_found == False:
            print("\nStudent not found")

    def delete_student():
        print("Deleting a student:\n")
        sr_code = input("Enter the SR of the student: ")

        is_student_found = False

        for student in students:
            if student['sr_code'] == sr_code:
                is_student_found = True
                students.remove(student)
                break

        if is_student_found == False:
            print("\nStudent not found")

    def display_students():
        print("Displaying all students:\n")

        if(len(students) == 0):
            print("\nNo students found")
        else:
            print("\nStudents: ")
            print("----------------------")
            for student in students:
                print("Name: " + student['name'])
                print("SR Code: " + student['sr_code'])
                print("Age: " + str(student['age']))
                print("Major: " + student['major'])
                print("Email ID: " + student['email_id'])
                print("Address: " + student['address'])
                print("----------------------\n")

    def get_student_by_sr():
        print("Getting a student by SR Code:\n")

        sr_code = input("Enter the SR of the student: ")

        is_student_found = False

        for student in students:
            if student['sr_code'] == sr_code:
                is_student_found = True
                print("\nStudent Information: ")
                print("----------------------")
                print("Name: " + student['name'])
                print("SR Code: " + student['sr_code'])
                print("Age: " + str(student['age']))
                print("Major: " + student['major'])
                print("Email ID: " + student['email_id'])
                print("Address: " + student['address'])
                print("----------------------\n")
                break

        if is_student_found == False:
            print("\nNo students found")

    print("Welcome to the student information system")

    while True:
        print("-----------MENU-----------")

        print("1. Add student")
        print("2. Update student")
        print("3. Delete student")
        print("4. Display students")
        print("5. Display specific student")
        print("6. Exit")

        choice = int(input("Enter your choice: "))

        print("--------------------------")

        if choice == 1:
            add_student()
        elif choice == 2:
            update_student()
        elif choice == 3:
            delete_student()
        elif choice == 4:
            display_students()
        elif choice == 5:
            get_student_by_sr()
        elif choice == 6:
            break
        else:
            print("Invalid choice")


main()