def add_movie(movie_list, movie):
    movie_list.append(movie)

def display_movies(movie_list):
    for movie in movie_list:
        print(movie)

# Initialize an empty movie list
favorite_movies = []
# Add movies to the list
add_movie(favorite_movies, 'Inception')
add_movie(favorite_movies, 'The Matrix')
add_movie(favorite_movies, 'Interstellar')
# Display the favorite movies
print('Favorite Movies:')
display_movies(favorite_movies)

def add_book(book_list, title, author):
    book = (title, author)
    if book not in book_list:
        book_list.append(book)
    else:
        print(f'The book "{title}" by {author} is already in the list.')

def display_books(book_list):
    for title, author in book_list:
        print(f'Title: {title}, Author: {author}')

# Initialize an empty book list
books = []
# Add books to the list
add_book(books, '1984', 'George Orwell')
add_book(books, 'Brave New World', 'Aldous Huxley')
add_book(books, '1984', 'George Orwell')  # Duplicate
# Display the books
print('Books in the List:')
display_books(books)

def unique_word_count(text):
    words = text.lower().split()
    unique_words = set(words)
    return len(unique_words)

# Sample text for analysis
sample_text = 'Learning English is fun and engaging. Learning is key.'
# Count the unique words in the sample text
count = unique_word_count(sample_text)
print(f'The number of unique words in the text is: {count}')

def word_frequency(text):
    import string
    text = text.lower()
    words = text.split()
    frequency = {}
    for word in words:
        # Remove punctuation
        word = ''.join(char for char in word if char.isalpha())
        if word:
            frequency[word] = frequency.get(word, 0) + 1
    return frequency

# Sample text for analysis
sample_text = 'Learning English is fun! Learning is key.'
# Get the word frequency in the sample text
freq = word_frequency(sample_text)
print(freq)

class QuizQuestion:
    def __init__(self, question, answers, correct_answer):
        self.question = question  # The quiz question text
        self.answers = answers  # List of possible answers
        self.correct_answer = correct_answer  # The correct answer

    def display(self):
        print(f'Question: {self.question}')
        for idx, answer in enumerate(self.answers, 1):
            print(f'{idx}. {answer}')

# Create quiz questions
question1 = QuizQuestion('What is the capital of France?', ['Berlin', 'Madrid', 'Paris', 'Rome'], 'Paris')
question2 = QuizQuestion('What is 2 + 2?', ['3', '4', '5', '6'], '4')

# Display quiz questions
question1.display()
question2.display()

class Flashcard:
    def __init__(self, term, definition, category):
        self.term = term  # The term to learn
        self.definition = definition  # The definition of the term
        self.category = category  # The category of the flashcard

    def display(self):
        print(f'Term: {self.term}\nDefinition: {self.definition}\nCategory: {self.category}')

    @staticmethod
    def display_by_category(flashcards, category):
        for card in flashcards:
            if card.category == category:
                card.display()

# Create flashcards
flashcard1 = Flashcard('Eloquent', 'Fluent or persuasive in speaking or writing.', 'Language')
flashcard2 = Flashcard('Ambiguous', 'Open to more than one interpretation.', 'Language')
flashcard3 = Flashcard('Photosynthesis', 'The process by which green plants use sunlight to synthesize foods.', 'Biology')

# Store flashcards in a list
flashcards = [flashcard1, flashcard2, flashcard3]

# Display flashcards by category
print('Language Flashcards:')
Flashcard.display_by_category(flashcards, 'Language')

print('\nBiology Flashcards:')
Flashcard.display_by_category(flashcards, 'Biology')

def math_quiz(num1, num2):
    user_answer = int(input(f'What is {num1} + {num2}? '))
    return user_answer == (num1 + num2)

def multi_choice_quiz(question, choices, correct_index):
    print(question)
    for i, choice in enumerate(choices):
        print(f'{i + 1}. {choice}')
    user_choice = int(input('Select the correct answer (1-{}): '.format(len(choices)))) - 1
    return user_choice == correct_index

def translate_list(words, dictionary):
    return [dictionary.get(word, 'Translation not found') for word in words]

# Sample dictionary for translation
translation_dict = {'hello': 'hola', 'goodbye': 'adiós', 'please': 'por favor'}
# List of words to translate
words_to_translate = ['hello', 'please', 'thank you']
# Translate the list of words
translated_words = translate_list(words_to_translate, translation_dict)
print(translated_words)

import re

def translate_sentence(sentence, dictionary):
    words = re.findall(r'\w+|[^\w\s]', sentence, re.UNICODE)
    translated_words = []
    for word in words:
        if word.isalpha():  # Check if the word is alphabetic
            translated_words.append(dictionary.get(word, word))
        else:
            translated_words.append(word)  # Preserve punctuation
    return ''.join(translated_words)

# Sample dictionary for translation
translation_dict = {'hello': 'hola', 'goodbye': 'adiós', 'please': 'por favor'}
# Sentence to translate
sentence_to_translate = 'hello, please say goodbye!'
# Translate the sentence
translated_sentence = translate_sentence(sentence_to_translate, translation_dict)
print(translated_sentence)